在前面的Prometheus + Grafana 部署說明之「安裝」文章里，大致介紹說明了Prometheus和Grafana的一些安裝使用，現在開始如何始部署Prometheus+Grafana 來監控Redis
部署
在之前介紹的Prometheus系列文章里，已經了解了Prometheus是通過拉取的方式來保存監控數據的，可以自己寫一個服務來去Redis來獲取需要監控的相關指標，也可以直接用現成的exporter，如GitHub上redis_exporter，本文對Redis的監控是通過該導出器進行的。
下載&解壓：
#下載
wget https://github.com/oliver006/redis_exporter/releases/download/v1.3.5/redis_exporter-v1.3.5.linux-amd64.tar.gz
#解壓
tar xvf redis_exporter-v1.3.5.linux-amd64.tar.gz
注意：redis_exporter 版本從 0.x to 1.x 有了很大的改變：為了使redis_exporter更緊密地遵循「編寫導出器的最佳實踐」，不再直接支持配置（和抓取）多個Redis實例，而是將這一任務推給了Prometheus服務器，具體情況可以看作者說明。如果需要抓取多個實例，請查看如何配置Prometheus服務器以刮取多個實例。
但如果已經按照Prometheus項目的推薦使用了導出器，並且僅scrape了一個實例（例如使用–redis.addr和–redis.password 標誌），那麼沒有任何改變。
準備：
1）在開啟redis_exporter [v1.3.5]之前，需要先配置Prometheus，按照Prometheus + Grafana 部署說明之「安裝」裝好Prometheus之後，修改其配置文件。本次示例是通過文件服務發現來處理的，因為監控服務的同時也要監控系統相關的指標，所以需要node_exporter和redis_exporter。文件發現機制有2種方式：exporter配置可以放到一個文件，也可以為每個實例單獨配置文件。如放到一個配置文件：
① 多實例相同密碼的抓取（只需要一個redis-exporter），集群信息：
3節點無從，密碼 abc
192.168.163.132、133、134 -- 6379
192.168.163.132、133、134 -- 6380
1.1 exporter配置放到一個文件的相關配置：
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['192.168.163.132:9099']
- job_name: 'node_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/nodes-instances.json
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: 'redis_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/redis-instances.json
metrics_path: /scrape
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.163.132:9123
View Code
nodes-instances.json：
[
{
"targets": [ "192.168.163.132:9199", "192.168.163.133:9199","192.168.163.134:9199"]
}
]
View Code
redis-instances.json：
[
{
"targets": [ "192.168.163.132:6379","192.168.163.133:6379","192.168.163.134:6379"],
"labels": {"env":"test","cluster":"test_one"}
},
{
"targets": [ "192.168.163.132:6380","192.168.163.133:6380","192.168.163.134:6380"],
"labels": {"env":"test","cluster":"test_two"}
}
]
View Code
以後如果有相關的實例集群包括主從加進來，只要修改以上2個exporter文件即可。最後開啟exporter：
#各個節點執行 node-exporter：
./node_exporter --web.listen-address=:9199
#指定節點執行 redis_exporter:
./redis_exporter -redis-only-metrics -redis.password abc -web.listen-address=:9123
1.2 exporter配置獨立存放的相關配置：
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['192.168.163.132:9099']
- job_name: 'node_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: 'redis_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/*.yml
metrics_path: /scrape
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.163.132:9123
View Code
targets/node/*.yml：
# ls -lh /etc/prometheus/targets/node/*.yml
-rw-r--r-- 1 root root 117 4月 18 14:51 /etc/prometheus/targets/node/test2_node_exporter.yml
-rw-r--r-- 1 root root 117 4月 18 14:51 /etc/prometheus/targets/node/test3_node_exporter.yml
-rw-r--r-- 1 root root 117 4月 18 14:51 /etc/prometheus/targets/node/test4_node_exporter.yml
# cat /etc/prometheus/targets/node/test2_node_exporter.yml
[
{
"targets": ["192.168.163.132:9199"],
"labels": {"env":"test","alias":"test2"}
}
]
# cat /etc/prometheus/targets/node/test3_node_exporter.yml
[
{
"targets": ["192.168.163.133:9199"],
"labels": {"env":"test","alias":"test3"}
}
]
# cat /etc/prometheus/targets/node/test4_node_exporter.yml
[
{
"targets": ["192.168.163.134:9199"],
"labels": {"env":"test","alias":"test4"}
}
]
View Code
targets/redis/*.yml：
# ls -lh /etc/prometheus/targets/redis/*.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/test2_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/test2_6380_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/test3_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:15 /etc/prometheus/targets/redis/test3_6380_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/test4_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:15 /etc/prometheus/targets/redis/test4_6380_redis_exporter.yml
# cat /etc/prometheus/targets/redis/test2_6379_redis_exporter.yml
[
{
"targets": [ "192.168.163.132:6379"],
"labels": {"env":"test","cluster":"test_one","alias":"test2"}
}
]
# cat /etc/prometheus/targets/redis/test3_6379_redis_exporter.yml
[
{
"targets": [ "192.168.163.133:6379"],
"labels": {"env":"test","cluster":"test_one","alias":"test3"}
}
]
# cat /etc/prometheus/targets/redis/test4_6379_redis_exporter.yml
[
{
"targets": [ "192.168.163.134:6379"],
"labels": {"env":"test","cluster":"test_one","alias":"test4"}
}
]
# cat /etc/prometheus/targets/redis/test2_6380_redis_exporter.yml
[
{
"targets": [ "192.168.163.132:6380"],
"labels": {"env":"test","cluster":"test_two","alias":"test2"}
}
]
# cat /etc/prometheus/targets/redis/test3_6380_redis_exporter.yml
[
{
"targets": [ "192.168.163.133:6380"],
"labels": {"env":"test","cluster":"test_two","alias":"test3"}
}
]
# cat /etc/prometheus/targets/redis/test4_6380_redis_exporter.yml
[
{
"targets": [ "192.168.163.134:6380"],
"labels": {"env":"test","cluster":"test_two","alias":"test4"}
}
]
View Code
以後如果有相關的實例集群加進來包括主從，只要新增2類exporter文件即可。最後開啟exporter：
#各個節點執行 node-exporter：
./node_exporter --web.listen-address=:9199
#指定節點執行 redis_exporter:
./redis_exporter -redis-only-metrics -redis.password abc -web.listen-address=:9123
以上2種通過文件服務發現的方法，推薦第2個。因為新增的文件有問題也不影響服務，修改文件可能會引發問題；並且也可以為各個節點打需要的labels。
最後配置Grafana，效果：
JSON Model：
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"id": 13,
"iteration": 1587194136640,
"links": [],
"panels": [
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群個數",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 0,
"y": 0
},
"id": 8,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(count(redis_up{cluster=~\"$cluster\"}>0) by (cluster))",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 5,
"y": 0
},
"id": 4,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_up{cluster=~\"$cluster\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群節點數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群活躍節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 4,
"x": 10,
"y": 0
},
"id": 6,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_up{cluster=~\"$cluster\"}>0)",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群活躍節點數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorPrefix": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "主節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 14,
"y": 0
},
"id": 10,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{cluster=~\"$cluster\", role=\"master\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "主節點個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "從節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 19,
"y": 0
},
"id": 12,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{cluster=~\"$cluster\", role=\"slave\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "從節點個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Redus Cluster OPS指標",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 3
},
"hiddenSeries": false,
"id": 16,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "ceil(sum(rate(redis_commands_processed_total{cluster=~\"$cluster\",instance=~\"$master\"}[$interval])) by (cluster))",
"interval": "5s",
"legendFormat": "{{cluster}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Redis Cluster OPS",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Redis 內存使用大小值",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 3
},
"hiddenSeries": false,
"id": 18,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "redis_memory_used_bytes{instance=~\"$instance\"} ",
"interval": "5s",
"legendFormat": "{{instance}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Redis 內存使用大小",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "bytes",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
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}
View Code
②：不同密碼多實例抓取，因為使用的是 >1.x 的redis_exporter [v1.3.5]，不支持多實例。因為一個export只能指定一個密碼，如果想進行多實例不同密碼抓取的話，所以需要在Prometheus配置多個redis_exporter，集群信息為：
3節點無從
192.168.163.132、133、134 -- 6379 密碼 abc
192.168.163.132、133、134 -- 6380 密碼 cba
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['192.168.163.132:9099']
- job_name: 'node_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: 'redis_exporter_A'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/A*.yml
metrics_path: /scrape
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.163.132:9123
- job_name: 'redis_exporter_B'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/B*.yml
metrics_path: /scrape
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.163.132:9124
View Code
targets/redis/*.yml：
# ls -lh /etc/prometheus/targets/redis/A*.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/Atest2_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/Atest3_6379_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/Atest4_6379_redis_exporter.yml
# ls -lh /etc/prometheus/targets/redis/B*.yml
-rw-r--r-- 1 root root 121 4月 18 13:14 /etc/prometheus/targets/redis/Btest2_6380_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:15 /etc/prometheus/targets/redis/Btest3_6380_redis_exporter.yml
-rw-r--r-- 1 root root 121 4月 18 13:15 /etc/prometheus/targets/redis/Btest4_6380_redis_exporter.yml
# cat /etc/prometheus/targets/redis/Atest2_6379_redis_exporter.yml
[
{
"targets": [ "192.168.163.132:6379"],
"labels": {"env":"test","cluster":"test_one","alias":"test2"}
}
]
# cat /etc/prometheus/targets/redis/Atest3_6379_redis_exporter.yml
[
{
"targets": [ "192.168.163.133:6379"],
"labels": {"env":"test","cluster":"test_one","alias":"test3"}
}
]
# cat /etc/prometheus/targets/redis/Atest4_6379_redis_exporter.yml
[
{
"targets": [ "192.168.163.134:6379"],
"labels": {"env":"test","cluster":"test_one","alias":"test4"}
}
]
# cat /etc/prometheus/targets/redis/Btest2_6380_redis_exporter.yml
[
{
"targets": [ "192.168.163.132:6380"],
"labels": {"env":"test","cluster":"test_two","alias":"test2"}
}
]
# cat /etc/prometheus/targets/redis/Btest3_6380_redis_exporter.yml
[
{
"targets": [ "192.168.163.133:6380"],
"labels": {"env":"test","cluster":"test_two","alias":"test3"}
}
]
# cat /etc/prometheus/targets/redis/Btest4_6380_redis_exporter.yml
[
{
"targets": [ "192.168.163.134:6380"],
"labels": {"env":"test","cluster":"test_two","alias":"test4"}
}
]
View Code
以後如果有相關的實例集群包括主從加進來，只要新增2類exporter文件即可。最後開啟exporter：
#指定節點執行 redis_exporter:
./redis_exporter -redis-only-metrics -redis.password abc -web.listen-address=:9123
#指定節點執行 redis_exporter:
./redis_exporter -redis-only-metrics -redis.password cba -web.listen-address=:9124
最後配置Grafana，效果和①一樣，唯一的區別就是②開多個exporter。這樣會導致一個問題：每次增加不同密碼的節點都會修改Prometheus配置文件，既不安全也不方便。可以通過下面方法來實現多實例不同密碼抓取。按照編寫導出器的最佳實踐，需要像nodes_exporter一樣在不同實例的主機上安裝和開啟redis_exporter，即為每個redis instance開啟一個exporter。集群信息為：
集群1：密碼 cc
M:
192.168.163.132:15389
192.168.163.133:15389
192.168.163.134:15389
S:
192.168.163.132:15489
192.168.163.133:15489
192.168.163.134:15489
集群2：密碼abc
M:
192.168.163.132:6379
192.168.163.133:6379
192.168.163.134:6379
S:
192.168.163.132:6381
192.168.163.133:6381
192.168.163.134:6381
prometheus.yml：
global:
scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['192.168.163.132:9099']
- job_name: 'node_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/node*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: 'redis_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/redis/redis*.yml
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- action: labeldrop
regex: __meta_filepath
View Code
targets/redis/redis*.yml
root@test2:/etc/prometheus/targets/redis# ls -lh redis*
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:02 redis_test2_15389_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:05 redis_test2_15489_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:02 redis_test3_15389_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:05 redis_test3_15489_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:03 redis_test4_15389_exporter.yml
-rw-r--r-- 1 prometheus prometheus 117 4月 18 22:05 redis_test4_15489_exporter.yml
root@test2:/etc/prometheus/targets/redis# cat redis_test2_15389_exporter.yml
[
{
"targets": ["192.168.163.132:9121"],
"labels": {"env":"test","cluster":"test","alias":"test2"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test3_15389_exporter.yml
[
{
"targets": ["192.168.163.133:9121"],
"labels": {"env":"test","cluster":"test","alias":"test3"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test4_15389_exporter.yml
[
{
"targets": ["192.168.163.134:9121"],
"labels": {"env":"test","cluster":"test","alias":"test4"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test2_15489_exporter.yml
[
{
"targets": ["192.168.163.132:9122"],
"labels": {"env":"test","cluster":"test","alias":"test2"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test3_15489_exporter.yml
[
{
"targets": ["192.168.163.133:9122"],
"labels": {"env":"test","cluster":"test","alias":"test3"}
}
]
root@test2:/etc/prometheus/targets/redis# cat redis_test4_15489_exporter.yml
[
{
"targets": ["192.168.163.134:9122"],
"labels": {"env":"test","cluster":"test","alias":"test4"}
}
]
View Code
通過文件服務發現，實現動態添加節點（exporter），一個Redis實例一個exporter，這裡只開集群1的exporter，即在test2、test3、test4上各開啟2個exporter，共6個exporter對應6個Redis實例，配置完成之後，可以直接到各個監控主機上啟動redis_exporter：
test2:
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:15389 -redis.password cc -web.listen-address=:9121
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:15489 -redis.password cc -web.listen-address=:9122
test3:
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.133:15389 -redis.password cc -web.listen-address=:9121
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.133:15489 -redis.password cc -web.listen-address=:9122
test4:
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.134:15389 -redis.password cc -web.listen-address=:9121
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.134:15489 -redis.password cc -web.listen-address=:9122
最後配置Grafana，效果：
JSON Model：
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"id": 13,
"iteration": 1587219062782,
"links": [],
"panels": [
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群個數",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 0,
"y": 0
},
"id": 8,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(count(redis_up{cluster=~\"$cluster\"}>0) by (cluster))",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 5,
"y": 0
},
"id": 4,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_up{cluster=~\"$cluster\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群節點數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群活躍節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 4,
"x": 10,
"y": 0
},
"id": 6,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_up{cluster=~\"$cluster\"}>0)",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群活躍節點數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorPrefix": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "主節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 14,
"y": 0
},
"id": 10,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{cluster=~\"$cluster\", role=\"master\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "主節點個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "從節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 19,
"y": 0
},
"id": 12,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{cluster=~\"$cluster\", role=\"slave\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "從節點個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Redus Cluster OPS指標",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 3
},
"hiddenSeries": false,
"id": 16,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "ceil(sum(rate(redis_commands_processed_total{cluster=~\"$cluster\",instance=~\"$master\"}[$interval])) by (cluster))",
"interval": "5s",
"legendFormat": "{{cluster}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Redis Cluster OPS",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Redis 內存使用大小值",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 3
},
"hiddenSeries": false,
"id": 18,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "redis_memory_used_bytes{instance=~\"$instance\"} ",
"interval": "5s",
"legendFormat": "{{instance}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Redis 內存使用大小",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
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"1h",
"2h",
"1d"
]
},
"timezone": "",
"title": "Redis_Cluster_V1.35",
"uid": "5FfBHG3Zz",
"variables": {
"list": []
},
"version": 4
}
View Code
③：舊版本redis_exporter [v0.34.1]支持多實例不同密碼，集群信息：
集群1：密碼 cc
M:
192.168.163.132:15389
192.168.163.133:15389
192.168.163.134:15389
S:
192.168.163.132:15489
192.168.163.133:15489
192.168.163.134:15489
集群2：密碼abc
M:
192.168.163.132:6379
192.168.163.133:6379
192.168.163.134:6379
S:
192.168.163.132:6381
192.168.163.133:6381
192.168.163.134:6381
prometheus.yml：
global:
scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['192.168.163.132:9099']
- job_name: 'node_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/nodes-instances.json
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostip
- action: labeldrop
regex: __meta_filepath
- job_name: 'redis_exporter'
scrape_interval: 1s
static_configs:
- targets: ['192.168.163.132:9128']
View Code
redis_exporter直接用命令行啟動：對應的參數有-redis.addr、-redis.alias、-redis.password：
# ./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:15389,192.168.163.133:15389,192.168.163.134:15389,192.168.163.132:15489,192.168.163.133:15489,192.168.163.134:15489,192.168.163.132:6379,192.168.163.133:6379,192.168.163.134:6379,192.168.163.132:6381,192.168.163.133:6381,192.168.163.134:6381 -redis.alias test,test,test,test,test,test,test123,test123,test123,test123,test123,test123 -redis.password cc,cc,cc,cc,cc,cc,abc,abc,abc,abc,abc,abc -web.listen-address :9128
INFO[0000] Redis Metrics Exporter v0.34.1 build date: 2019-05-09-15:42:21 sha1: 1c168d07eff09e64efb18600a35664d6666926e6 Go: go1.12.5
INFO[0000] Providing metrics at :9128/metrics
INFO[0000] Connecting to redis hosts: []string{"192.168.163.132:15389", "192.168.163.133:15389", "192.168.163.134:15389", "192.168.163.132:15489", "192.168.163.133:15489", "192.168.163.134:15489", "192.168.163.132:6379", "192.168.163.133:6379", "192.168.163.134:6379", "192.168.163.132:6381", "192.168.163.133:6381", "192.168.163.134:6381"}
INFO[0000] Using alias: []string{"test", "test", "test", "test", "test", "test", "test123", "test123", "test123", "test123", "test123", "test123"}
注意：參數、密碼和實例的他們是一一對應的。最後配置Grafana，效果：
JSON Model：
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"id": 14,
"iteration": 1587221739977,
"links": [],
"panels": [
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群個數",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 0,
"y": 0
},
"id": 8,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(count(redis_up{alias=~\"$cluster\"}>0) by (alias))",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 5,
"y": 0
},
"id": 4,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{alias=~\"$cluster\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群節點數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群活躍節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 4,
"x": 10,
"y": 0
},
"id": 6,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_up{alias=~\"$cluster\"}>0)",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群活躍節點數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorPrefix": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "主節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 14,
"y": 0
},
"id": 10,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
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"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{alias=~\"$cluster\", role=\"master\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "主節點個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "從節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 19,
"y": 0
},
"id": 12,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{alias=~\"$cluster\", role=\"slave\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "從節點個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Redus Cluster OPS指標",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 3
},
"hiddenSeries": false,
"id": 16,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "ceil(sum(rate(redis_commands_processed_total{alias=~\"$cluster\",addr=~\"$master\"}[$interval])) by (alias))",
"interval": "5s",
"legendFormat": "{{alias}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Redis Cluster OPS",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
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"max": null,
"min": null,
"show": true
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{
"format": "short",
"label": null,
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"max": null,
"min": null,
"show": true
}
],
"yaxis": {
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"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Redis 內存使用大小值",
"fill": 1,
"fillGradient": 0,
"gridPos": {
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"w": 12,
"x": 12,
"y": 3
},
"hiddenSeries": false,
"id": 18,
"legend": {
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"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "redis_memory_used_bytes{addr=~\"$instance\"} ",
"interval": "5s",
"legendFormat": "{{addr}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Redis 內存使用大小",
"tooltip": {
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"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
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"max": null,
"min": null,
"show": true
},
{
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"max": null,
"min": null,
"show": true
}
],
"yaxis": {
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"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Redis Server CPU使用率",
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"fillGradient": 0,
"gridPos": {
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"x": 0,
"y": 11
},
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"max": false,
"min": false,
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},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
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},
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"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
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"legendFormat": "{{addr}}",
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}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Redis CPU使用率",
"tooltip": {
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"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
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"mode": "time",
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"show": true,
"values": []
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"show": true
},
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"max": null,
"min": null,
"show": true
}
],
"yaxis": {
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"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Redis 內存使用率",
"fill": 1,
"fillGradient": 0,
"gridPos": {
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"w": 12,
"x": 12,
"y": 11
},
"hiddenSeries": false,
"id": 20,
"legend": {
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"current": false,
"max": false,
"min": false,
"show": true,
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},
"lines": true,
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"nullPointMode": "null",
"options": {
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},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
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"interval": "5s",
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"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Redis 內存使用率",
"tooltip": {
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"value_type": "individual"
},
"type": "graph",
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"values": []
},
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"max": null,
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"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
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"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點系統CPU使用率",
"fill": 1,
"fillGradient": 0,
"gridPos": {
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"x": 0,
"y": 19
},
"hiddenSeries": false,
"id": 24,
"legend": {
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"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "topk(3,clamp_max((avg by (hostname,mode) ((clamp_max(rate(node_cpu_seconds_total{hostname=~\"$host\",mode!=\"idle\"}[$interval]),1)) or (clamp_max(irate(node_cpu_seconds_total{hostname=~\"$host\",mode!=\"idle\"}[5m]),1)) ))*100,100))",
"hide": true,
"interval": "",
"legendFormat": "{{mode}}",
"refId": "A"
},
{
"expr": "1 - avg by (hostip)(rate(node_cpu_seconds_total{hostip=~\"$host\", mode=\"idle\"}[$interval]))",
"interval": "",
"legendFormat": "{{hostip}}",
"refId": "B"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "系統CPU使用率",
"tooltip": {
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"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
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"values": []
},
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],
"yaxis": {
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"alignLevel": null
}
},
{
"aliasColors": {},
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"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點系統物理內存利用率",
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"gridPos": {
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},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "((node_memory_MemTotal_bytes{hostip=~\"$host\"} - (node_memory_MemAvailable_bytes{hostip=~\"$host\"} or (node_memory_MemFree_bytes{hostip=~\"$host\"} + node_memory_Buffers_bytes{hostip=~\"$host\"} + node_memory_Cached_bytes{hostip=~\"$host\"})))*100 / node_memory_MemTotal_bytes{hostip=~\"$host\"})",
"hide": false,
"interval": "",
"legendFormat": "{{hostip}}",
"refId": "B"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "系統物理內存利用率",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "percent",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": true,
"cacheTimeout": null,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點系統磁盤使用率",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 27
},
"hiddenSeries": false,
"id": 32,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": false,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pluginVersion": "6.7.2",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "topk(10,max((1 - node_filesystem_avail_bytes{hostip=~\"$host\", fstype!~\"rootfs|selinuxfs|autofs|rpc_pipefs|tmpfs\"} / node_filesystem_size_bytes{hostip=~\"$host\", fstype!~\"rootfs|selinuxfs|autofs|rpc_pipefs|tmpfs\"})*100) by (hostip) > 0)",
"interval": "",
"legendFormat": "{{hostip}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "系統磁盤使用率",
"tooltip": {
"shared": false,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "series",
"name": null,
"show": true,
"values": [
"current"
]
},
"yaxes": [
{
"format": "percent",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點以及集群的 KEYS 總數",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 27
},
"hiddenSeries": false,
"id": 22,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "sum(redis_db_keys{addr=~\"$master\"}) by (addr,db)",
"interval": "",
"legendFormat": "{{addr}}",
"refId": "A"
},
{
"expr": "sum(redis_db_keys{addr=~\"$master\"}) by (alias)",
"interval": "",
"legendFormat": "{{alias}}_total",
"refId": "B"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "KEYS 總數",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點活躍連接數",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 35
},
"hiddenSeries": false,
"id": 26,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "redis_connected_clients{addr=~\"$instance\"}",
"interval": "",
"legendFormat": "{{addr}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "活躍連接數",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點內存碎片率",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 35
},
"hiddenSeries": false,
"id": 28,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "redis_mem_fragmentation_ratio{addr=~\"$instance\"}",
"interval": "",
"legendFormat": "{{addr}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "內存碎片率",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點 的負載",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 43
},
"hiddenSeries": false,
"id": 34,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "node_load1{hostip=~\"$host\"}",
"interval": "",
"legendFormat": "{{hostip}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "負載（Load）",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
}
],
"refresh": "5s",
"schemaVersion": 22,
"style": "dark",
"tags": [],
"templating": {
"list": [
{
"auto": true,
"auto_count": 100,
"auto_min": "1s",
"current": {
"selected": true,
"text": "5s",
"value": "5s"
},
"hide": 0,
"label": "interval",
"name": "interval",
"options": [
{
"selected": false,
"text": "auto",
"value": "$__auto_interval_interval"
},
{
"selected": true,
"text": "5s",
"value": "5s"
},
{
"selected": false,
"text": "30s",
"value": "30s"
},
{
"selected": false,
"text": "1m",
"value": "1m"
},
{
"selected": false,
"text": "10m",
"value": "10m"
},
{
"selected": false,
"text": "30m",
"value": "30m"
},
{
"selected": false,
"text": "1h",
"value": "1h"
},
{
"selected": false,
"text": "6h",
"value": "6h"
},
{
"selected": false,
"text": "12h",
"value": "12h"
},
{
"selected": false,
"text": "1d",
"value": "1d"
}
],
"query": "5s,30s,1m,10m,30m,1h,6h,12h,1d",
"refresh": 2,
"skipUrlSync": false,
"type": "interval"
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "Prometheus",
"definition": "label_values(redis_up,alias)",
"hide": 0,
"includeAll": true,
"index": -1,
"label": "Cluster",
"multi": true,
"name": "cluster",
"options": [],
"query": "label_values(redis_up,alias)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "Prometheus",
"definition": "label_values(redis_instance_info{alias=~\"$cluster\"},role)",
"hide": 0,
"includeAll": true,
"index": -1,
"label": "Role",
"multi": true,
"name": "role",
"options": [],
"query": "label_values(redis_instance_info{alias=~\"$cluster\"},role)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "Prometheus",
"definition": "label_values(redis_instance_info{alias=~\"$cluster\",role=~\"$role\"},addr)",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "instance",
"multi": true,
"name": "instance",
"options": [],
"query": "label_values(redis_instance_info{alias=~\"$cluster\",role=~\"$role\"},addr)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "Prometheus",
"definition": "label_values(redis_instance_info{alias=~\"$cluster\",role=\"master\"},addr)",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "master",
"multi": true,
"name": "master",
"options": [],
"query": "label_values(redis_instance_info{alias=~\"$cluster\",role=\"master\"},addr)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "Prometheus",
"definition": "label_values(redis_up{alias=~\"$cluster\"}, addr)",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "host",
"multi": true,
"name": "host",
"options": [],
"query": "label_values(redis_up{alias=~\"$cluster\"}, addr)",
"refresh": 1,
"regex": "(.*):.*",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
}
]
},
"time": {
"from": "now-5m",
"to": "now"
},
"timepicker": {
"refresh_intervals": [
"5s",
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h",
"2h",
"1d"
]
},
"timezone": "",
"title": "Redis_Cluster_V0.34",
"uid": "5FfBHG3Zz1",
"variables": {
"list": []
},
"version": 1
}
View Code
3）導入dashboard（763）到Grafana，展示的監控圖：
需要注意的是，監控面板上看到的是exporter的IP和端口，看不到Redis實例的端口，如果是一台機器部署一台Redis實例，則可以直接使用主機名。或則修改相應的labels來自定義需求。除了修改labels之外，還可以自定義數據源，如使用MySQL作為新數據源。
5）MySQL做為數據源定製模板
添加數據源：
表結構：
CREATE TABLE `cluster_info` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主鍵', `cluster_type` varchar(64) DEFAULT NULL COMMENT '集群類型', `cluster_name` varchar(64) DEFAULT NULL COMMENT '集群名', `hostname` varchar(64) DEFAULT NULL COMMENT '主機名', `host_ip` varchar(64) DEFAULT NULL COMMENT 'IP', `port` int(11) DEFAULT NULL COMMENT '服務端口', `role` varchar(64) DEFAULT NULL COMMENT '服務角色', `comments` varchar(500) DEFAULT NULL COMMENT '集群描述', `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '創建時間', `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新時間', PRIMARY KEY (`id`), KEY `idx_create_time` (`create_time`), KEY `idx_update_time` (`update_time`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='集群信息'
表記錄：
mysql> select * from cluster_info; +----+---------------+--------------+----------+-----------------+------+--------+--------------+---------------------+---------------------+ | id | cluster_type | cluster_name | hostname | host_ip | port | role | comments | create_time | update_time | +----+---------------+--------------+----------+-----------------+------+--------+--------------+---------------------+---------------------+ | 1 | Redis_Cluster | testX | test2 | 192.168.163.132 | 6380 | master | 測試集群 | 2020-04-08 19:22:56 | 2020-04-09 11:19:13 | | 2 | Redis_Cluster | testX | test3 | 192.168.163.133 | 6380 | master | 測試集群 | 2020-04-08 19:24:29 | 2020-04-09 11:19:16 | | 3 | Redis_Cluster | testX | test4 | 192.168.163.134 | 6380 | master | 測試集群 | 2020-04-08 19:24:33 | 2020-04-09 11:19:16 | +----+---------------+--------------+----------+-----------------+------+--------+--------------+---------------------+---------------------+
5.1 使用編寫導出器的最佳實踐：
prometheus.yml：
global: scrape_interval: 10s # Set the scrape interval to every 15 seconds. Default is every 1 minute. evaluation_interval: 10s # Evaluate rules every 15 seconds. The default is every 1 minute. alerting: alertmanagers: - static_configs: - targets: # - alertmanager:9093 rule_files: # - "first_rules.yml" # - "second_rules.yml" scrape_configs: - job_name: 'prometheus' static_configs: - targets: ['192.168.163.132:9099'] - job_name: 'node_exporter' scrape_interval: 1s file_sd_configs: - files: - targets/node/node*.yml refresh_interval: 10s relabel_configs: - action: replace source_labels: ['__address__'] regex: (.*):(.*) replacement: $1 target_label: hostname - action: labeldrop regex: __meta_filepath - job_name: 'redis_exporter' scrape_interval: 1s file_sd_configs: - files: - targets/redis/Xredis*.yml relabel_configs: - action: replace source_labels: ['__address__'] regex: (.*):(.*) replacement: $1 target_label: hostip - action: labeldrop regex: __meta_filepath
View Code
targets/node/node*.yml
root@test2:/etc/prometheus/targets/node# ls -lh node*.yml
-rw-r--r-- 1 prometheus prometheus 103 4月 19 01:24 node_test2_exporter.yml
-rw-r--r-- 1 prometheus prometheus 103 4月 18 16:18 node_test3_exporter.yml
-rw-r--r-- 1 prometheus prometheus 103 4月 18 16:18 node_test4_exporter.yml
root@test2:/etc/prometheus/targets/node# cat node_test2_exporter.yml
[
{
"targets": ["192.168.163.132:9199"],
"labels": {"env":"test","instance":"test2"}
}
]
root@test2:/etc/prometheus/targets/node# cat node_test3_exporter.yml
[
{
"targets": ["192.168.163.133:9199"],
"labels": {"env":"test","instance":"test3"}
}
]
root@test2:/etc/prometheus/targets/node# cat node_test4_exporter.yml
[
{
"targets": ["192.168.163.134:9199"],
"labels": {"env":"test","instance":"test4"}
}
]
View Code
targets/redis/Xredis*.yml
root@test2:/etc/prometheus/targets/redis# ls -lh Xredis*.yml
-rw-r--r-- 1 root root 118 4月 19 00:34 Xredis_test2_6380_exporter.yml
-rw-r--r-- 1 root root 118 4月 19 00:36 Xredis_test3_6380_exporter.yml
-rw-r--r-- 1 root root 118 4月 19 00:35 Xredis_test4_6380_exporter.yml
root@test2:/etc/prometheus/targets/redis# cat Xredis_test2_6380_exporter.yml
[
{
"targets": ["192.168.163.132:9123"],
"labels": {"env":"test","cluster":"testX","alias":"test2"}
}
]
root@test2:/etc/prometheus/targets/redis# cat Xredis_test3_6380_exporter.yml
[
{
"targets": ["192.168.163.133:9123"],
"labels": {"env":"test","cluster":"testX","alias":"test3"}
}
]
root@test2:/etc/prometheus/targets/redis# cat Xredis_test4_6380_exporter.yml
[
{
"targets": ["192.168.163.134:9123"],
"labels": {"env":"test","cluster":"testX","alias":"test4"}
}
]
View Code
配置完成之後，可以直接到各個監控主機上啟動redis_exporter：
test2:
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:6380 -redis.password cba -web.listen-address=:9123
test3:
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.133:6380 -redis.password cba -web.listen-address=:9123
test4:
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.134:6380 -redis.password cba -web.listen-address=:9123
最後配置Grafana，效果：
JSON Model：
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"id": 13,
"iteration": 1587231669738,
"links": [],
"panels": [
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群個數",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 0,
"y": 0
},
"id": 8,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
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"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "集群的活躍連接數",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 35
},
"hiddenSeries": false,
"id": 26,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "sum(redis_connected_clients{alias=~\"$master\"}) by (cluster)",
"interval": "",
"legendFormat": "{{cluster}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "活躍連接數",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點內存碎片率",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 35
},
"hiddenSeries": false,
"id": 28,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "redis_mem_fragmentation_ratio{alias=~\"$host\"}",
"interval": "",
"legendFormat": "{{alias}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "內存碎片率",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "各個節點 的負載",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 43
},
"hiddenSeries": false,
"id": 34,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "node_load1{instance=~\"$host\"}",
"interval": "",
"legendFormat": "{{instance}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "負載（Load）",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
}
],
"refresh": "5s",
"schemaVersion": 22,
"style": "dark",
"tags": [],
"templating": {
"list": [
{
"auto": true,
"auto_count": 100,
"auto_min": "1s",
"current": {
"selected": false,
"text": "5s",
"value": "5s"
},
"hide": 0,
"label": "interval",
"name": "interval",
"options": [
{
"selected": false,
"text": "auto",
"value": "$__auto_interval_interval"
},
{
"selected": true,
"text": "5s",
"value": "5s"
},
{
"selected": false,
"text": "30s",
"value": "30s"
},
{
"selected": false,
"text": "1m",
"value": "1m"
},
{
"selected": false,
"text": "10m",
"value": "10m"
},
{
"selected": false,
"text": "30m",
"value": "30m"
},
{
"selected": false,
"text": "1h",
"value": "1h"
},
{
"selected": false,
"text": "6h",
"value": "6h"
},
{
"selected": false,
"text": "12h",
"value": "12h"
},
{
"selected": false,
"text": "1d",
"value": "1d"
}
],
"query": "5s,30s,1m,10m,30m,1h,6h,12h,1d",
"refresh": 2,
"skipUrlSync": false,
"type": "interval"
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select cluster_name from cluster_info where cluster_type = \"Redis_Cluster\"",
"hide": 0,
"includeAll": true,
"index": -1,
"label": "Cluster",
"multi": true,
"name": "cluster",
"options": [],
"query": "select cluster_name from cluster_info where cluster_type = \"Redis_Cluster\"",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select role from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster)",
"hide": 0,
"includeAll": true,
"index": -1,
"label": "Role",
"multi": true,
"name": "role",
"options": [],
"query": "select role from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster)",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "host",
"multi": true,
"name": "host",
"options": [],
"query": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role=\"master\"",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "master",
"multi": true,
"name": "master",
"options": [],
"query": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role=\"master\"",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role=\"slave\"",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "slave",
"multi": true,
"name": "slave",
"options": [],
"query": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role=\"slave\"",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "Prometheus",
"definition": "label_values(redis_instance_info{cluster=~\"$cluster\",role=~\"$role\"},instance)",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "instance",
"multi": true,
"name": "instance",
"options": [],
"query": "label_values(redis_instance_info{cluster=~\"$cluster\",role=~\"$role\"},instance)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
}
]
},
"time": {
"from": "now-5m",
"to": "now"
},
"timepicker": {
"refresh_intervals": [
"5s",
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h",
"2h",
"1d"
]
},
"timezone": "",
"title": "Redis_Cluster_V1.35",
"uid": "5FfBHG3Zz",
"variables": {
"list": []
},
"version": 9
}
View Code
5.2 使用老版本的exporter：
prometheus.yml
global:
scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['192.168.163.132:9099']
- job_name: 'node_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/node*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: 'redis_exporter'
scrape_interval: 1s
static_configs:
- targets: ['192.168.163.132:9128']
View Code
配置完成之後，可以直接到監控主機上啟動redis_exporter：
./redis_exporter -redis-only-metrics -redis.addr 192.168.163.132:6380,192.168.163.133:6380,192.168.163.134:6380 -redis.alias test2,test3,test4 -redis.password cba,cba,cba -web.listen-address :9128
最後配置Grafana，效果：
JSON Model：
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"id": 13,
"iteration": 1587234344797,
"links": [],
"panels": [
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "MySQL",
"description": "集群個數",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 0,
"y": 0
},
"id": 8,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"format": "table",
"group": [],
"metricColumn": "none",
"rawQuery": true,
"rawSql": "select count(distinct cluster_name) from cluster_info where cluster_type = 'Redis_Cluster'",
"refId": "A",
"select": [
[
{
"params": [
"id"
],
"type": "column"
}
]
],
"table": "cluster_info",
"timeColumn": "create_time",
"timeColumnType": "timestamp",
"where": [
{
"name": "$__timeFilter",
"params": [],
"type": "macro"
}
]
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 5,
"y": 0
},
"id": 4,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_up{alias=~\"$all_host\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群節點數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "集群活躍節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 4,
"x": 10,
"y": 0
},
"id": 6,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_up{alias=~\"$all_host\"}>0)",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "集群活躍節點數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorPrefix": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "主節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 14,
"y": 0
},
"id": 10,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{alias=~\"$master\", role=\"master\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "主節點個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": true,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": null,
"description": "從節點數量",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 19,
"y": 0
},
"id": 12,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false,
"ymax": null,
"ymin": null
},
"tableColumn": "",
"targets": [
{
"expr": "count(redis_instance_info{alias=~\"$slave\", role=\"slave\"})",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "從節點個數",
"type": "singlestat",
"valueFontSize": "100%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
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"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role in ($role)",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "host",
"multi": true,
"name": "host",
"options": [],
"query": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role in ($role)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role=\"master\"",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "master",
"multi": true,
"name": "master",
"options": [],
"query": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role=\"master\"",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role=\"slave\"",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "slave",
"multi": true,
"name": "slave",
"options": [],
"query": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster) and role=\"slave\"",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {
"text": "All",
"value": [
"$__all"
]
},
"datasource": "MySQL",
"definition": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster)",
"hide": 2,
"includeAll": true,
"index": -1,
"label": "all_host",
"multi": true,
"name": "all_host",
"options": [],
"query": "select hostname from cluster_info where cluster_type = \"Redis_Cluster\" and cluster_name in ($cluster)",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 0,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
}
]
},
"time": {
"from": "now-5m",
"to": "now"
},
"timepicker": {
"refresh_intervals": [
"5s",
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h",
"2h",
"1d"
]
},
"timezone": "",
"title": "Redis_Cluster_V1.35",
"uid": "5FfBHG3Zz",
"variables": {
"list": []
},
"version": 14
}
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從上面的圖中看到，其中OPS的Legend展示的是表達式，按照老版本的的redis_exporter，不能自定義label，雖然監控不同密碼多實例比較方便，但作圖的時候不好看。目前想到二種方法：
1. 使用推薦的一個實例一個exporter。
2. 在老版本redis_exporter基礎上，對指標進行重新定義和打label，此時需要自己編寫一個exporter來對指標進行重寫。
如：老版本的redis_exporter部署在137這台機器上，並且端口為9128：使用python的prometheus_client模塊編寫一個服務（5000）來抓取數據進行label修改：
#!/bin/env python # -*- encoding: utf-8 -*- import requests import re import json import MySQLdb import prometheus_client from prometheus_client import Gauge,Counter from flask import Response, Flask app = Flask(__name__) def redis_cluster_metadata(): conn = MySQLdb.connect(host="192.168.163.133", port=3306, user="dba", passwd="dba", db='test', charset='utf8') query = ''' SELECT concat( host_ip, ':', PORT ) ip, cluster_name FROM cluster_info WHERE cluster_type = 'Redis_Cluster' ''' cursor = conn.cursor() cursor.execute(query) conn.commit() result = cursor.fetchall() cursor.close() return result def gauge_init(pair): result = {} for k, v in pair.items(): name = v documentation = v label = ("alias", "addr", "cluster") gauge = Gauge(name, documentation, label) result[v] = gauge return result def redis_cluster_metric(pair): url = "//192.168.163.137:9128/metrics" pat = re.compile(r'addr="(.*)",alias="(.*)"') request_data = requests.get(url, timeout=3) metrics_info = request_data.text metrics_dict = {} for metrics in metrics_info.split('\n'): for metric in pair: if metrics.find(metric) == 0: value = metrics.split(' ')[1] pat_info = pat.search(metrics) ip = pat_info.group(1) alias = pat_info.group(2) metrics_dict.setdefault(ip, {}) metrics_dict[ip]['alias'] = alias metrics_dict[ip][metrics_pair[metric]] = value return metrics_dict @app.route("/metrics") def prometheus_for_redis(): redis_cluster_info = redis_cluster_metadata() metadata_dict = {} for redis_cluster_item in redis_cluster_info: ip,clustername = redis_cluster_item metadata_dict[ip] = clustername metrics_dict = redis_cluster_metric(metrics_pair) for k,v in metrics_dict.items(): for _k,_v in metadata_dict.items(): if k == _k: metrics_dict[k]['cluster'] = _v print metadata_dict print metrics_dict result = '' for metric_name, gauge in gauge_dict.items(): for k, v in metrics_dict.items(): if k in metadata_dict.keys(): gauge.labels(alias=v['alias'], addr=k, cluster=v['cluster']).set(v[metric_name]) result = result + prometheus_client.generate_latest(gauge).decode() return Response(result, mimetype="text/plain") if __name__ == "__main__": metrics_pair = {'redis_commands_processed_total': 'cluster_redis_commands_processed_total','redis_cluster_size':'cluster_redis_cluster_size'} gauge_dict = gauge_init(metrics_pair) app.run(host="0.0.0.0")
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大致的思想是：對原始的redis_exporter的指標進行過濾，拿出需要的指標進行label指定，最後作為一個導出器服務啟動（5000），並配置到prometheus.yml里：
global:
scrape_interval: 5s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 5s # Evaluate rules every 15 seconds. The default is every 1 minute.
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['192.168.163.137:9099']
- job_name: 'node_exporter'
scrape_interval: 1s
file_sd_configs:
- files:
- targets/node/node*.yml
refresh_interval: 10s
relabel_configs:
- action: replace
source_labels: ['__address__']
regex: (.*):(.*)
replacement: $1
target_label: hostname
- action: labeldrop
regex: __meta_filepath
- job_name: 'redis_exporter'
scrape_interval: 1s
static_configs:
- targets: ['192.168.163.137:9128']
- job_name: 'redisx_exporter'
metrics_path: /redisx_cluster/metrics
scrape_interval: 1s
static_configs:
- targets: ['192.168.163.137:5000']
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最後OPS的Legend顯示為：
小結：
上面的給出的這些參考指標以及監控項可以按照需要自行進行調整，如果需要自己一個做類似redis_exporter的導出器，具體的信息可以參考client_python。
總結：
本文大致介紹了Prometheus 監控Redis（cluster）的方法，後續會不定期進行對監控的完善。redis_exporter在v1.0之後做了比較大的調整，特別是對多實例不同密碼這一塊的改變，推薦還是最新版本的redis_exporter，按照推薦進行設置。如果需要，大家可以看官方文檔進行相應的學習。
