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prometheus monitoring mysql_galera cluster
2022-08-02 08:23:00 【Daxinxin Dahaohao】
prometheus监控mysql_galera集群
Record it and open itprometheus-mysql-galera监控的方式.
This article records thatmysql_galera集群的监控,The main difference from a single point isdashboard的选择上.Some clusters need to be addedmetric显示
我这里使用的是service形式,不是使用的docker形式,Because it feels so much moredocker,Fear of the risk of miscalculation when something goes wrong.
环境列表
- mysql版本：10.5.11-MariaDB
- mysql数据库端口：3306
- 数据库IP：192.168.0.1,192.168.0.2,192.168.0.3
- prometheus版本：2.37.0
- granafa版本：9.0.4
- mysql-dashboard-ID：11329,Fine-tuned based on this template
Preparation within the database
数据库内增加expoterUser used and empowered
- 新建用户：mysqlexpoter
- 密码：prometheus
- 权限：*.* TO ‘mysqlexpoter’@‘%’
CREATE USER 'mysqlexpoter'@'%' IDENTIFIED BY 'prometheus' WITH MAX_USER_CONNECTIONS 3;
GRANT ALL PRIVILEGES ON *.* TO 'mysqlexpoter'@'%' IDENTIFIED BY 'prometheus';
flush privileges;
expoter准备
直接从git上下载即可
wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.14.0/mysqld_exporter-0.14.0.linux-amd64.tar.gz
tar -xvf mysqld_exporter-0.14.0.linux-amd64.tar.gz
cp mysqld_exporter-0.14.0.linux-amd64/mysqld_exporter /usr/local/bin/
配置文件准备
注意,It must be executed once on each node,for each nodeexpoter提供配置文件
/usr/local/bin/mysqldexpoter.my.cnf
cat << EOF > /usr/local/bin/mysqldexpoter.my.cnf [client] user=mysqlexpoter password=prometheus host=192.168.xx.xx port=3306 EOF
service文件准备
注意,It must be executed once on each database node,Equivalent to starting on each nodeexpoter服务
这里使用serviceThe form can improve the convenience of use,Consistent with other existing services
The executable path used is ：/usr/local/bin/mysqld_exporter
配置文件路径为：/usr/local/bin/mysqldexpoter.my.cnf
端口为：9104
cat << EOF > /usr/lib/systemd/system/mysqld_exporter.service [Unit] Description=mysqld_exporter Documentation=https://prometheus.io Wants=network-online.target After=network.target [Service] Type=simple User=root ExecStart=/usr/local/bin/mysqld_exporter --config.my-cnf /usr/local/bin/mysqldexpoter.my.cnf --web.listen-address=0.0.0.0:9104 \ --collect.slave_status \ --collect.binlog_size \ --collect.info_schema.processlist \ --collect.info_schema.innodb_metrics \ --collect.engine_innodb_status \ --collect.perf_schema.file_events Restart=on-failure [Install] WantedBy=multi-user.target EOF
服务启动
systemctl daemon-reload
systemctl start mysqld_exporter
systemctl enable mysqld_exporter
systemctl status mysqld_exporter
prometheus-job配置
targetThe information of all nodes in the cluster is configured here,This is also different from a single pointmysqlMonitoring configuration differences
- job_name: 'mysql-galera'
static_configs:
- targets:
- '192.168.0.1:9104'
- '192.168.0.2:9104'
- '192.168.0.3:9104'
granafa-dashboard数据展示
我这里使用的dashboard是基于11329改造的,删除了DB的Variables,Added cluster status display
dashboard的json信息,需要的可以参考下
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": {
"type": "datasource",
"uid": "grafana"
},
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"target": {
"limit": 100,
"matchAny": false,
"tags": [],
"type": "dashboard"
},
"type": "dashboard"
}
]
},
"description": "Mysql-exporter监控",
"editable": true,
"fiscalYearStartMonth": 0,
"gnetId": 11329,
"graphTooltip": 0,
"id": 14,
"links": [],
"liveNow": false,
"panels": [
{
"datasource": {
"type": "prometheus",
"uid": "5KkZmIzVz"
},
"description": "",
"fieldConfig": {
"defaults": {
"custom": {
"align": "auto",
"displayMode": "auto",
"filterable": false,
"inspect": false
},
"mappings": [
{
"options": {
"0": {
"text": "DOWN"
},
"1": {
"text": "UP"
}
},
"type": "value"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 0
}
]
}
},
"overrides": [
{
"matcher": {
"id": "byType",
"options": "number"
},
"properties": [
{
"id": "custom.displayMode",
"value": "color-background"
},
{
"id": "thresholds",
"value": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "green",
"value": 1
}
]
}
},
{
"id": "custom.width",
"value": 200
}
]
}
]
},
"gridPos": {
"h": 5,
"w": 6,
"x": 0,
"y": 0
},
"id": 32,
"options": {
"footer": {
"fields": "",
"reducer": [
"sum"
],
"show": false
},
"showHeader": true,
"sortBy": []
},
"pluginVersion": "9.0.5",
"targets": [
{
"datasource": {
"type": "prometheus",
"uid": "5KkZmIzVz"
},
"expr": "mysql_up",
"format": "table",
"instant": true,
"interval": "",
"intervalFactor": 1,
"legendFormat": "",
"refId": "A"
}
],
"title": "Service Status",
"transformations": [
{
"id": "filterFieldsByName",
"options": {
"include": {
"names": [
"instance",
"Value"
]
}
}
}
],
"type": "table"
},
{
"columns": [
{
"$$hashKey": "object:714",
"text": "Current",
"value": "current"
}
],
"datasource": {
"type": "prometheus",
"uid": "$Prometheus"
},
"fontSize": "100%",
"gridPos": {
"h": 5,
"w": 5,
"x": 6,
"y": 0
},
"id": 16,
"links": [],
"pluginVersion": "6.1.4",
"scroll": true,
"showHeader": true,
"sort": {
"col": 0,
"desc": true
},
"styles": [
{
"alias": "Time",
"align": "auto",
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"pattern": "Time",
"type": "date"
},
{
"alias": "",
"align": "auto",
"colorMode": "value",
"colors": [
"rgba(245, 54, 54, 0.9)",
"rgba(237, 129, 40, 0.89)",
"rgba(50, 172, 45, 0.97)"
],
"decimals": 2,
"pattern": "/.*/",
"thresholds": [
"1",
"100"
],
"type": "number",
"unit": "s"
}
],
"targets": [
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "mysql_global_status_uptime",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{
{instance}}",
"refId": "A"
}
],
"title": "Uptime",
"transform": "timeseries_aggregations",
"type": "table-old"
},
{
"columns": [
{
"$$hashKey": "object:127",
"text": "Current",
"value": "current"
}
],
"datasource": {
"type": "prometheus",
"uid": "$Prometheus"
},
"fontSize": "100%",
"gridPos": {
"h": 5,
"w": 5,
"x": 11,
"y": 0
},
"id": 6,
"links": [],
"pluginVersion": "6.1.4",
"scroll": true,
"showHeader": true,
"sort": {
"col": 0,
"desc": true
},
"styles": [
{
"alias": "Time",
"align": "auto",
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"pattern": "Time",
"type": "date"
},
{
"alias": "",
"align": "auto",
"colorMode": "value",
"colors": [
"rgba(50, 172, 45, 0.97)",
"rgba(237, 129, 40, 0.89)",
"rgba(245, 54, 54, 0.9)"
],
"decimals": 0,
"pattern": "/.*/",
"thresholds": [
"100",
"800"
],
"type": "number",
"unit": "short"
}
],
"targets": [
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "mysql_global_status_threads_connected",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{
{instance}}",
"refId": "A"
}
],
"title": "MySQL 连接数",
"transform": "timeseries_aggregations",
"type": "table-old"
},
{
"columns": [
{
"$$hashKey": "object:181",
"text": "Current",
"value": "current"
}
],
"datasource": {
"type": "prometheus",
"uid": "$Prometheus"
},
"fontSize": "100%",
"gridPos": {
"h": 5,
"w": 4,
"x": 16,
"y": 0
},
"id": 17,
"links": [],
"pluginVersion": "6.1.4",
"scroll": true,
"showHeader": true,
"sort": {
"col": 0,
"desc": true
},
"styles": [
{
"alias": "Time",
"align": "auto",
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"pattern": "Time",
"type": "date"
},
{
"alias": "",
"align": "auto",
"colorMode": "value",
"colors": [
"#5794F2",
"#5794F2",
"rgb(54, 121, 224)"
],
"decimals": 0,
"pattern": "/.*/",
"thresholds": [
""
],
"type": "number",
"unit": "none"
}
],
"targets": [
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "mysql_global_variables_max_connections",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{
{instance}}",
"refId": "A"
}
],
"title": "MySQL最大连接数",
"transform": "timeseries_aggregations",
"type": "table-old"
},
{
"columns": [
{
"$$hashKey": "object:228",
"text": "Current",
"value": "current"
}
],
"datasource": {
"type": "prometheus",
"uid": "$Prometheus"
},
"description": "每秒的次数",
"fontSize": "100%",
"gridPos": {
"h": 5,
"w": 4,
"x": 20,
"y": 0
},
"id": 8,
"links": [],
"pluginVersion": "6.1.4",
"scroll": true,
"showHeader": true,
"sort": {
"col": 0,
"desc": true
},
"styles": [
{
"alias": "Time",
"align": "auto",
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"pattern": "Time",
"type": "date"
},
{
"alias": "",
"align": "auto",
"colorMode": "value",
"colors": [
"#73BF69",
"#FF9830",
"#F2495C"
],
"decimals": 2,
"pattern": "/.*/",
"thresholds": [
"1",
"3"
],
"type": "number",
"unit": "short"
}
],
"targets": [
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "rate(mysql_global_status_aborted_connects[2m])",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{
{instance}}",
"refId": "A"
}
],
"title": "MySQL Number of connection rejections",
"transform": "timeseries_aggregations",
"type": "table-old"
},
{
"datasource": {
"type": "prometheus",
"uid": "5KkZmIzVz"
},
"fieldConfig": {
"defaults": {
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "green",
"value": 1
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 5,
"w": 12,
"x": 0,
"y": 5
},
"id": 34,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "9.0.5",
"targets": [
{
"datasource": {
"type": "prometheus",
"uid": "5KkZmIzVz"
},
"expr": "mysql_global_status_wsrep_cluster_status",
"instant": false,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"title": "Cluster Status",
"transformations": [
{
"id": "labelsToFields",
"options": {
"valueLabel": "instance"
}
},
{
"id": "merge",
"options": {
}
}
],
"transparent": true,
"type": "stat"
},
{
"datasource": {
"type": "prometheus",
"uid": "5KkZmIzVz"
},
"fieldConfig": {
"defaults": {
"mappings": [],
"max": 3,
"min": 0,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "yellow",
"value": 1.0001
},
{
"color": "green",
"value": 2.0001
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 5,
"w": 12,
"x": 12,
"y": 5
},
"id": 36,
"options": {
"orientation": "auto",
"reduceOptions": {
"calcs": [
"last"
],
"fields": "",
"values": false
},
"showThresholdLabels": false,
"showThresholdMarkers": true
},
"pluginVersion": "9.0.5",
"targets": [
{
"datasource": {
"type": "prometheus",
"uid": "5KkZmIzVz"
},
"expr": "mysql_global_status_wsrep_cluster_size",
"format": "time_series",
"instant": false,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"title": "Cluster Size",
"transformations": [
{
"id": "labelsToFields",
"options": {
"valueLabel": "instance"
}
},
{
"id": "merge",
"options": {
}
}
],
"type": "gauge"
},
{
"columns": [
{
"$$hashKey": "object:310",
"text": "Avg",
"value": "avg"
}
],
"datasource": {
"type": "prometheus",
"uid": "$Prometheus"
},
"description": "Innodb_log_waits值不等于0的话,表明 innodb log buffer 因为空间不足而等待 ",
"fontSize": "100%",
"gridPos": {
"h": 5,
"w": 12,
"x": 0,
"y": 10
},
"id": 30,
"links": [],
"scroll": true,
"showHeader": true,
"sort": {
"col": 0,
"desc": true
},
"styles": [
{
"alias": "Time",
"align": "auto",
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"pattern": "Time",
"type": "date"
},
{
"alias": "",
"align": "auto",
"colorMode": "cell",
"colors": [
"rgba(50, 172, 45, 0.97)",
"#F2495C",
"rgba(245, 54, 54, 0.9)"
],
"decimals": 2,
"pattern": "/.*/",
"thresholds": [
"1",
"2"
],
"type": "number",
"unit": "short"
}
],
"targets": [
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "mysql_global_status_innodb_log_waits",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{
{instance}}",
"refId": "A"
}
],
"title": "Innodb_log_waits 量 ",
"transform": "timeseries_aggregations",
"type": "table-old"
},
{
"aliasColors": {
"172.27.83.231:9104": "dark-blue"
},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"type": "prometheus",
"uid": "$Prometheus"
},
"decimals": 2,
"description": "5range in minutes for comparison",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 5,
"w": 12,
"x": 12,
"y": 10
},
"hiddenSeries": false,
"id": 18,
"interval": "",
"legend": {
"alignAsTable": true,
"avg": false,
"current": true,
"hideEmpty": false,
"max": true,
"min": false,
"rightSide": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "9.0.5",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "sum(rate(mysql_global_status_commands_total{command=\"commit\"}[5m]))by(instance)+sum(rate(mysql_global_status_commands_total{command=\"rollback\"}[5m]))by(instance)",
"format": "time_series",
"instant": false,
"intervalFactor": 1,
"legendFormat": "{
{instance}}",
"refId": "A"
}
],
"thresholds": [],
"timeRegions": [],
"title": "TPS",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"transparent": true,
"type": "graph",
"xaxis": {
"mode": "time",
"show": true,
"values": []
},
"yaxes": [
{
"decimals": 2,
"format": "short",
"label": "",
"logBase": 1,
"show": true
},
{
"format": "short",
"logBase": 1,
"show": true
}
],
"yaxis": {
"align": false
}
},
{
"aliasColors": {
"172.27.83.231:9104": "blue"
},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"type": "prometheus",
"uid": "$Prometheus"
},
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 6,
"w": 12,
"x": 0,
"y": 15
},
"hiddenSeries": false,
"id": 14,
"interval": "",
"legend": {
"alignAsTable": true,
"avg": false,
"current": true,
"max": true,
"min": false,
"rightSide": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "9.0.5",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "rate(mysql_global_status_queries[5m]) or irate(mysql_global_status_queries[5m])",
"format": "time_series",
"instant": false,
"intervalFactor": 1,
"legendFormat": "{
{instance}}",
"refId": "A"
}
],
"thresholds": [],
"timeRegions": [],
"title": "QPS",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"transparent": true,
"type": "graph",
"xaxis": {
"mode": "time",
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"logBase": 1,
"show": true
},
{
"format": "short",
"logBase": 1,
"show": true
}
],
"yaxis": {
"align": false
}
},
{
"aliasColors": {
"172.27.83.231:9104 -> Read rate": "blue",
"172.27.83.231:9104 -> Write rate": "green",
"Read rate": "rgb(55, 117, 36)",
"Write rate": "rgb(139, 134, 217)",
"select": "blue"
},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"type": "prometheus",
"uid": "$Prometheus"
},
"fill": 2,
"fillGradient": 0,
"gridPos": {
"h": 6,
"w": 12,
"x": 12,
"y": 15
},
"hiddenSeries": false,
"id": 2,
"interval": "",
"legend": {
"alignAsTable": true,
"avg": false,
"current": true,
"max": true,
"min": false,
"rightSide": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "9.0.5",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "rate(mysql_global_status_questions[2m])",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{
{instance}} -> Read rate",
"refId": "A"
},
{
"datasource": {
"uid": "$Prometheus"
},
"expr": "sum(rate(mysql_global_status_commands_total{command=~\"insert|update|delete\"}[2m])) without (command)",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{
{instance}} -> Write rate",
"refId": "B"
}
],
"thresholds": [],
"timeRegions": [],
"title": "MySQL 吞吐量",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"mode": "time",
"show": true,
"values": []
},
"yaxes": [
{
"format": "none",
"logBase": 1,
"show": true
},
{
"format": "none",
"logBase": 1,
"show": true
}
],
"yaxis": {
"align": false
}
},
{
"aliasColors": {
"172.27.83.226:9104 -> Disk Growth ": "blue",
"172.27.83.231:9104 -> Disk Growth ": "purple",
"172.27.83.231:9104 -> 缓冲池 Utilization ": "light-yellow",
"Disk growth rate": "light-red",
"缓冲池 Utilization ratio": "rgb(14, 122, 101)"
},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"uid": "$Prometheus"
},
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 7,
"w": 12,
"x": 0,
"y": 21
},
"hiddenSeries": false,
"id": 10,
"legend": {
"alignAsTable": true,
"avg": false,
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