prometheus监控postgresql
1、下载postgres_exporter插件wget https://github.com/wrouesnel/postgres_exporter/releases/download/v0.5.1/postgres_exporter_v0.5.1_linux-amd64.tar.gz解压tar xf postgre_exporter-*.tar.gz启动postgre_exporterexpor
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1、下载postgres_exporter插件
wget https://github.com/wrouesnel/postgres_exporter/releases/download/v0.5.1/postgres_exporter_v0.5.1_linux-amd64.tar.gz
解压
tar xf postgre_exporter-*.tar.gz
启动postgre_exporter
export DATA_SOURCE_NAME="postgresql://postgres:lt123456@127.0.0.1:5432/postgres?sslmode=disable"
/home/postgres_exporter_v0.8.0/postgres_exporter &
查看postgre_exporter是否开启
netstat -lntp
tcp 0 0 :::9187 :::* LISTEN 13614/./postgres_ex
2、在PG数据库添加信息
CREATE USER postgres_exporter PASSWORD 'password';
ALTER USER postgres_exporter SET SEARCH_PATH TO postgres_exporter,pg_catalog;
CREATE SCHEMA postgres_exporter AUTHORIZATION postgres_exporter;
CREATE FUNCTION postgres_exporter.f_select_pg_stat_activity()
RETURNS setof pg_catalog.pg_stat_activity
LANGUAGE sql
SECURITY DEFINER
AS $$
SELECT * from pg_catalog.pg_stat_activity;
$$;
CREATE FUNCTION postgres_exporter.f_select_pg_stat_replication()
RETURNS setof pg_catalog.pg_stat_replication
LANGUAGE sql
SECURITY DEFINER
AS $$
SELECT * from pg_catalog.pg_stat_replication;
$$;
CREATE VIEW postgres_exporter.pg_stat_replication
AS
SELECT * FROM postgres_exporter.f_select_pg_stat_replication();
CREATE VIEW postgres_exporter.pg_stat_activity
AS
SELECT * FROM postgres_exporter.f_select_pg_stat_activity();
GRANT SELECT ON postgres_exporter.pg_stat_replication TO postgres_exporter;
GRANT SELECT ON postgres_exporter.pg_stat_activity TO postgres_exporter;
3、在postgres_ 中queries.yaml
修改prometheus配置文件
- job_name: postgre
static_configs:
- targets: ['192.168.1.242:9187']
labels:
instance: db1
重启prometheus
nohup ./prometheus --config.file=./prometheus.yml &
4、监控
#配置 数据库数据源信息
export DATA_SOURCE_NAME=postgresql://postgres:postgres@127.0.0.1:5433/postgres?sslmode=disable
#启动监控命令
./postgres_exporter -extend.query-path queries.yaml -log.level debug
或者
nohup /home/postgres_exporter_v0.8.0/postgres_exporter &
5、JSON
{
"__inputs": [
{
"name": "DS_DEV_PROMETHEUS",
"label": "DEV_Prometheus",
"description": "",
"type": "datasource",
"pluginId": "prometheus",
"pluginName": "Prometheus"
}
],
"__requires": [
{
"type": "panel",
"id": "gauge",
"name": "Gauge",
"version": ""
},
{
"type": "grafana",
"id": "grafana",
"name": "Grafana",
"version": "6.0.1"
},
{
"type": "panel",
"id": "graph",
"name": "Graph",
"version": "5.0.0"
},
{
"type": "datasource",
"id": "prometheus",
"name": "Prometheus",
"version": "5.0.0"
},
{
"type": "panel",
"id": "singlestat",
"name": "Singlestat",
"version": "5.0.0"
},
{
"type": "panel",
"id": "table",
"name": "Table",
"version": "5.0.0"
}
],
"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": null,
"iteration": 1552826976555,
"links": [],
"panels": [
{
"collapsed": false,
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 0
},
"id": 21,
"panels": [],
"title": "==============================System Summary==============================",
"type": "row"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "${DS_DEV_PROMETHEUS}",
"format": "dateTimeAsIso",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 6,
"w": 3,
"x": 0,
"y": 1
},
"id": 2,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "node_boot_time_seconds{instance=\"$server\"} * 1000",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "System Uptime(days)",
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "System Start Time",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "${DS_DEV_PROMETHEUS}",
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 2,
"x": 3,
"y": 1
},
"id": 4,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "count(count(node_cpu_seconds_total{instance=\"$server\", mode='system'}) by (cpu))",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "CPU Cores",
"type": "singlestat",
"valueFontSize": "120%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"datasource": "${DS_DEV_PROMETHEUS}",
"gridPos": {
"h": 6,
"w": 3,
"x": 5,
"y": 1
},
"id": 8,
"links": [],
"options": {
"maxValue": 100,
"minValue": 0,
"showThresholdLabels": true,
"showThresholdMarkers": true,
"thresholds": [
{
"color": "#7EB26D",
"index": 0,
"value": null
},
{
"color": "#FA6400",
"index": 1,
"value": 30
},
{
"color": "#C4162A",
"index": 2,
"value": 70
}
],
"valueMappings": [],
"valueOptions": {
"decimals": 2,
"prefix": "",
"stat": "current",
"suffix": "",
"unit": "percent"
}
},
"targets": [
{
"expr": "100 - (avg(irate(node_cpu_seconds_total{instance=\"$server\",mode=\"idle\"}[5m])) * 100)",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "CPU Usage (5m)",
"type": "gauge"
},
{
"datasource": "${DS_DEV_PROMETHEUS}",
"gridPos": {
"h": 6,
"w": 3,
"x": 8,
"y": 1
},
"id": 10,
"links": [],
"options": {
"maxValue": 100,
"minValue": 0,
"showThresholdLabels": true,
"showThresholdMarkers": true,
"thresholds": [
{
"color": "#7EB26D",
"index": 0,
"value": null
},
{
"color": "#FA6400",
"index": 1,
"value": 30
},
{
"color": "#C4162A",
"index": 2,
"value": 50
}
],
"valueMappings": [],
"valueOptions": {
"decimals": 2,
"prefix": "",
"stat": "current",
"suffix": "",
"unit": "percent"
}
},
"targets": [
{
"expr": "avg(irate(node_cpu_seconds_total{instance=\"$server\",mode=\"iowait\"}[5m])) * 100",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "CPU IO Wait (5m)",
"type": "gauge"
},
{
"datasource": "${DS_DEV_PROMETHEUS}",
"gridPos": {
"h": 6,
"w": 3,
"x": 11,
"y": 1
},
"id": 12,
"links": [],
"options": {
"maxValue": 100,
"minValue": 0,
"showThresholdLabels": false,
"showThresholdMarkers": true,
"thresholds": [
{
"color": "#7EB26D",
"index": 0,
"value": null
},
{
"color": "#FA6400",
"index": 1,
"value": 80
},
{
"color": "#C4162A",
"index": 2,
"value": 90
}
],
"valueMappings": [],
"valueOptions": {
"decimals": null,
"prefix": "",
"stat": "current",
"suffix": "",
"unit": "percent"
}
},
"targets": [
{
"expr": "(node_memory_MemTotal_bytes{instance=\"$server\"} - (node_memory_MemFree_bytes{instance=\"$server\"} + node_memory_Buffers_bytes{instance=\"$server\"} + node_memory_Cached_bytes{instance=\"$server\"})) / node_memory_MemTotal_bytes{instance=\"$server\"} * 100",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Memory Used",
"type": "gauge"
},
{
"datasource": "${DS_DEV_PROMETHEUS}",
"gridPos": {
"h": 6,
"w": 3,
"x": 14,
"y": 1
},
"id": 13,
"links": [],
"options": {
"maxValue": 100,
"minValue": 0,
"showThresholdLabels": false,
"showThresholdMarkers": true,
"thresholds": [
{
"color": "#C4162A",
"index": 0,
"value": null
},
{
"color": "#FA6400",
"index": 1,
"value": 20
},
{
"color": "#37872D",
"index": 2,
"value": 50
}
],
"valueMappings": [],
"valueOptions": {
"decimals": 2,
"prefix": "",
"stat": "current",
"suffix": "",
"unit": "percent"
}
},
"targets": [
{
"expr": "(node_memory_Cached_bytes{instance=\"$server\"} * 100) / node_memory_MemTotal_bytes{instance=\"$server\"}",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Memory Cached",
"type": "gauge"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_DEV_PROMETHEUS}",
"fill": 1,
"gridPos": {
"h": 6,
"w": 7,
"x": 17,
"y": 1
},
"id": 15,
"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",
"paceLength": 10,
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "node_load1{instance=\"$server\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "1m",
"refId": "A"
},
{
"expr": "node_load5{instance=\"$server\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "5m",
"refId": "B"
},
{
"expr": "node_load15{instance=\"$server\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "15m",
"refId": "C"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "System Average Load (1,5,15) ",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "${DS_DEV_PROMETHEUS}",
"format": "bytes",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 2,
"x": 3,
"y": 4
},
"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
},
"tableColumn": "",
"targets": [
{
"expr": "node_memory_MemTotal_bytes{instance=\"$server\"}",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "Memory Size",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"columns": [],
"datasource": "${DS_DEV_PROMETHEUS}",
"fontSize": "100%",
"gridPos": {
"h": 6,
"w": 11,
"x": 0,
"y": 7
},
"id": 17,
"links": [],
"pageSize": null,
"scroll": true,
"showHeader": true,
"sort": {
"col": 9,
"desc": false
},
"styles": [
{
"alias": "Available Size",
"colorMode": "cell",
"colors": [
"rgba(245, 54, 54, 0.9)",
"rgba(237, 129, 40, 0.89)",
"rgba(50, 172, 45, 0.97)"
],
"decimals": 1,
"link": false,
"pattern": "Value #A",
"thresholds": [
"1000000000",
"5000000000"
],
"type": "number",
"unit": "bytes"
},
{
"alias": "Size Used Percent ",
"colorMode": "cell",
"colors": [
"rgba(50, 172, 45, 0.97)",
"rgba(237, 129, 40, 0.89)",
"rgba(245, 54, 54, 0.9)"
],
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"decimals": 1,
"mappingType": 1,
"pattern": "Value #B",
"thresholds": [
"0.8",
"0.9"
],
"type": "number",
"unit": "percentunit"
},
{
"alias": "Total Size",
"colorMode": null,
"colors": [
"rgba(245, 54, 54, 0.9)",
"rgba(237, 129, 40, 0.89)",
"rgba(50, 172, 45, 0.97)"
],
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"decimals": 0,
"mappingType": 1,
"pattern": "Value #C",
"thresholds": [],
"type": "number",
"unit": "bytes"
},
{
"alias": "FIle System",
"colorMode": null,
"colors": [
"rgba(245, 54, 54, 0.9)",
"rgba(237, 129, 40, 0.89)",
"rgba(50, 172, 45, 0.97)"
],
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"decimals": 2,
"mappingType": 1,
"pattern": "fstype",
"thresholds": [],
"type": "number",
"unit": "short"
},
{
"alias": "Disk",
"colorMode": null,
"colors": [
"#37872D",
"rgba(237, 129, 40, 0.89)",
"rgba(50, 172, 45, 0.97)"
],
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"decimals": 2,
"mappingType": 1,
"pattern": "device",
"thresholds": [],
"type": "number",
"unit": "short"
},
{
"alias": "Mount Point",
"colorMode": null,
"colors": [
"rgba(245, 54, 54, 0.9)",
"rgba(237, 129, 40, 0.89)",
"rgba(50, 172, 45, 0.97)"
],
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"decimals": 2,
"mappingType": 1,
"pattern": "mountpoint",
"thresholds": [],
"type": "number",
"unit": "short"
},
{
"alias": "",
"colorMode": null,
"colors": [
"rgba(245, 54, 54, 0.9)",
"rgba(237, 129, 40, 0.89)",
"rgba(50, 172, 45, 0.97)"
],
"dateFormat": "YYYY-MM-DD HH:mm:ss",
"decimals": 2,
"mappingType": 1,
"pattern": "/.*/",
"thresholds": [],
"type": "hidden",
"unit": "short"
}
],
"targets": [
{
"expr": "(node_filesystem_size_bytes{instance='$server',fstype=~\"ext3|ext4|xfs|nfs\"})/100 *100",
"format": "table",
"instant": true,
"intervalFactor": 1,
"refId": "C"
},
{
"expr": "node_filesystem_avail_bytes {instance='$server',fstype=~\"ext3|ext4|xfs|nfs\"}",
"format": "table",
"instant": true,
"intervalFactor": 1,
"refId": "A"
},
{
"expr": "1-(node_filesystem_free_bytes{instance='$server',fstype=~\"ext3|ext4|xfs|nfs\"} / node_filesystem_size_bytes{instance='$server',fstype=~\"ext3|ext4|xfs|nfs\"})",
"format": "table",
"instant": true,
"intervalFactor": 1,
"refId": "B"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Disk Usage",
"transform": "table",
"type": "table"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "${DS_DEV_PROMETHEUS}",
"fill": 1,
"gridPos": {
"h": 6,
"w": 13,
"x": 11,
"y": 7
},
"id": 19,
"legend": {
"avg": false,
"current": true,
"max": false,
"min": false,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"paceLength": 10,
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [
{
"alias": "/.*writes$/",
"transform": "negative-Y"
}
],
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "irate(node_disk_reads_completed_total{instance=~\"$server\"}[1m])",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{{device}}_reads",
"refId": "A"
},
{
"expr": "irate(node_disk_writes_completed_total{instance=~\"$server\"}[1m])",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{{device}}_writes",
"refId": "B"
},
{
"expr": "node_disk_io_now{instance=~\"$server\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "{{device}}",
"refId": "C"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Disk Read/Write IOPS (1m)",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "ops",
"label": "reads(+)/ writes(-) ",
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": "I/O ops/sec",
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"collapsed": true,
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 13
},
"id": 23,
"panels": [],
"title": "==============================Databsase Summary==============================",
"type": "row"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"datasource": "${DS_DEV_PROMETHEUS}",
"format": "dateTimeAsIso",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
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