一. JVM监控
- 通过
jmx_exporter
启动端口来实现JVM的监控
Kubernetes Deployment Java 服务,修改
sh
wget https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.19.0/jmx_prometheus_javaagent-0.19.0.jar
# 编写配置文件,我是通过 hostPath 方式挂进 pod 中的
lowercaseOutputLabelNames: true
lowercaseOutputName: true
whitelistObjectNames: ["java.lang:type=OperatingSystem"]
rules:
- pattern: 'java.lang<type=OperatingSystem><>((?!process_cpu_time)\w+):'
name: os_$1
type: GAUGE
attrNameSnakeCase: true
# 加入启动参数,其他部分省略,只看增加的
spec:
containers:
- command:
- java
- -javaagent:/home/prometheus/jmx/jmx_prometheus_javaagent-0.19.0.jar=9999:/home/prometheus/jmx/config.yml # 加入启动参数,指定端口为9999,并指定配置文件
volumeMounts:
- mountPath: /home/prometheus/jmx
name: jmx
volumes:
- hostPath:
path: /home/prometheus/jmx
type: ""
name: jmx
Service 修改或增加
yaml
apiVersion: v1
kind: Service
metadata:
annotations: # Service加入2行注释
prometheus.io/jvm: "true"
prometheus.io/port: "9999"
name: yff-uef-api
namespace: yff
spec:
ports:
- name: http
port: 8080
protocol: TCP
targetPort: 8080
- name: jmx-metrices # 并增加jmx所暴露的端口
port: 9999
protocol: TCP
targetPort: 9999
selector:
name: yff-uef-api
service/env: prod
type: ClusterIP
Prometheus 增加 jvm 的配置
yaml
- job_name: 'jvm'
kubernetes_sd_configs:
- role: endpoints
relabel_configs:
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_jvm]
action: keep
regex: true
- source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
action: replace
target_label: __address__
regex: ([^:]+)(?::\d+)?;(\d+)
replacement: $1:$2
- source_labels: [__meta_kubernetes_service_name]
action: replace
regex: (.+)
target_label: application
replacement: $1
- action: labelmap
regex: __meta_kubernetes_service_label_(.+)
Grafana 增加面板
- 可以在官网寻找面板 JXM dashboard
- 如下是我的 dashboard json信息
json
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": {
"type": "datasource",
"uid": "grafana"
},
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
},
{
"datasource": {
"type": "prometheus",
"uid": "xpMiKxl4k"
},
"enable": true,
"expr": "resets(process_uptime_seconds{application=\"$application\", instance=\"$instance\"}[1m]) > 0",
"hide": false,
"iconColor": "rgba(255, 96, 96, 1)",
"name": "Restart Detection",
"showIn": 0,
"step": "1m",
"tagKeys": "restart-tag",
"textFormat": "uptime reset",
"titleFormat": "Restart"
}
]
},
"description": "Complete dashboard using metrics from prometheus JMX exporter, with drill down per job > instance",
"editable": true,
"fiscalYearStartMonth": 0,
"gnetId": 8563,
"graphTooltip": 0,
"id": 81,
"links": [],
"liveNow": false,
"panels": [
{
"datasource": {
"uid": "$datasource"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [
{
"options": {
"0": {
"text": "DOWN"
},
"1": {
"text": "UP"
}
},
"type": "value"
},
{
"options": {
"match": "null",
"result": {
"text": "DOWN"
}
},
"type": "special"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "#d44a3a",
"value": null
},
{
"color": "#e24d42",
"value": 0
},
{
"color": "#299c46",
"value": 1
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 3,
"x": 3,
"y": 0
},
"hideTimeOverride": false,
"id": 21,
"links": [
{
"targetBlank": true,
"title": "Tomcat dashboard",
"url": "/d/chanjarster-tomcat-dashboard/tomcat-dashboard?$__url_time_range&$__all_variables"
}
],
"maxDataPoints": 100,
"options": {
"colorMode": "value",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "horizontal",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "9.5.7",
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "up{job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"instant": true,
"intervalFactor": 1,
"refId": "A"
}
],
"title": "Status",
"type": "stat"
},
{
"datasource": {
"uid": "$datasource"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"decimals": 0,
"mappings": [
{
"options": {
"match": "null",
"result": {
"text": "N/A"
}
},
"type": "special"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "s"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 4,
"x": 6,
"y": 0
},
"id": 14,
"links": [],
"maxDataPoints": 100,
"options": {
"colorMode": "none",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "horizontal",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "9.5.7",
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "time() - process_start_time_seconds{job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"instant": true,
"intervalFactor": 1,
"refId": "A"
}
],
"title": "Uptime",
"type": "stat"
},
{
"datasource": {
"uid": "$datasource"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [
{
"options": {
"match": "null",
"result": {
"text": "N/A"
}
},
"type": "special"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "#299c46",
"value": null
},
{
"color": "rgba(237, 129, 40, 0.89)",
"value": 35
},
{
"color": "#d44a3a",
"value": 50
}
]
},
"unit": "dateTimeAsIso"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 4,
"x": 10,
"y": 0
},
"id": 15,
"interval": "",
"links": [],
"maxDataPoints": 100,
"options": {
"colorMode": "none",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "horizontal",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "9.5.7",
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "process_start_time_seconds{job=\"$job\",instance=\"$instance\"}*1000",
"format": "time_series",
"instant": true,
"intervalFactor": 1,
"refId": "A"
}
],
"title": "Start time",
"type": "stat"
},
{
"datasource": {
"uid": "$datasource"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"decimals": 0,
"mappings": [
{
"options": {
"match": "null",
"result": {
"text": "N/A"
}
},
"type": "special"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 7,
"x": 14,
"y": 0
},
"id": 19,
"links": [],
"maxDataPoints": 100,
"options": {
"colorMode": "none",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "horizontal",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "/^jdk$/",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "9.5.7",
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "label_join(jvm_info{job=\"$job\",instance=\"$instance\"}, \"jdk\", \", \", \"vendor\", \"runtime\", \"version\")",
"format": "table",
"instant": true,
"intervalFactor": 1,
"legendFormat": "",
"refId": "A"
}
],
"title": "JVM Version",
"type": "stat"
},
{
"datasource": {
"uid": "$datasource"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [
{
"options": {
"match": "null",
"result": {
"text": "N/A"
}
},
"type": "special"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 4,
"x": 6,
"y": 4
},
"id": 39,
"interval": "",
"links": [],
"maxDataPoints": 100,
"options": {
"colorMode": "none",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "horizontal",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "9.5.7",
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "os_available_processors{job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"instant": true,
"intervalFactor": 1,
"refId": "A"
}
],
"title": "Available CPUs",
"type": "stat"
},
{
"datasource": {
"uid": "$datasource"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [
{
"options": {
"match": "null",
"result": {
"text": "N/A"
}
},
"type": "special"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 4,
"x": 10,
"y": 4
},
"id": 23,
"links": [],
"maxDataPoints": 100,
"options": {
"colorMode": "none",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "horizontal",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "9.5.7",
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "os_system_load_average{job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"instant": true,
"intervalFactor": 1,
"refId": "A"
}
],
"title": "System load average",
"type": "stat"
},
{
"datasource": {
"uid": "$datasource"
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [
{
"options": {
"match": "null",
"result": {
"text": "N/A"
}
},
"type": "special"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 80
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 4,
"x": 14,
"y": 4
},
"id": 38,
"links": [],
"maxDataPoints": 100,
"options": {
"colorMode": "none",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "horizontal",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"pluginVersion": "9.5.7",
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "os_open_file_descriptor_count{job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"instant": true,
"intervalFactor": 1,
"refId": "A"
}
],
"title": "Open file descriptors",
"type": "stat"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"uid": "$datasource"
},
"decimals": 1,
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 9,
"w": 24,
"x": 0,
"y": 8
},
"hiddenSeries": false,
"id": 29,
"legend": {
"alignAsTable": true,
"avg": false,
"current": true,
"max": true,
"min": false,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "9.5.7",
"pointradius": 5,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "os_system_cpu_load{job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "System",
"refId": "B"
},
{
"datasource": {
"uid": "$datasource"
},
"expr": "os_process_cpu_load{job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "JVM",
"refId": "A"
}
],
"thresholds": [],
"timeRegions": [],
"title": "CPU load",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"mode": "time",
"show": true,
"values": []
},
"yaxes": [
{
"decimals": 1,
"format": "percentunit",
"logBase": 1,
"show": true
},
{
"format": "short",
"logBase": 1,
"show": false
}
],
"yaxis": {
"align": false
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"uid": "$datasource"
},
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 9,
"w": 12,
"x": 0,
"y": 17
},
"hiddenSeries": false,
"id": 8,
"legend": {
"alignAsTable": true,
"avg": true,
"current": true,
"max": true,
"min": true,
"rightSide": false,
"show": true,
"sortDesc": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"links": [],
"maxPerRow": 2,
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "9.5.7",
"pointradius": 5,
"points": false,
"renderer": "flot",
"repeat": "memarea",
"repeatDirection": "h",
"seriesOverrides": [
{
"alias": "Usage %",
"bars": true,
"color": "#6d1f62",
"legend": false,
"lines": false,
"yaxis": 2,
"zindex": -1
}
],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "jvm_memory_bytes_used{area=\"$memarea\",job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "Used",
"refId": "A"
},
{
"datasource": {
"uid": "$datasource"
},
"expr": " jvm_memory_bytes_max{area=\"$memarea\",job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "Max",
"refId": "B"
},
{
"datasource": {
"uid": "$datasource"
},
"expr": "jvm_memory_bytes_used{area=\"$memarea\",job=\"$job\",instance=\"$instance\"} / jvm_memory_bytes_max >= 0",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "Usage %",
"refId": "C"
}
],
"thresholds": [],
"timeRegions": [],
"title": "Memory area [$memarea]",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"mode": "time",
"show": true,
"values": []
},
"yaxes": [
{
"format": "bytes",
"logBase": 1,
"show": true
},
{
"format": "percentunit",
"label": "",
"logBase": 1,
"max": "1",
"min": "0",
"show": true
}
],
"yaxis": {
"align": false
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"uid": "$datasource"
},
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 9,
"w": 12,
"x": 0,
"y": 26
},
"hiddenSeries": false,
"id": 2,
"legend": {
"alignAsTable": true,
"avg": true,
"current": true,
"max": true,
"min": true,
"rightSide": false,
"show": true,
"sort": "current",
"sortDesc": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"links": [],
"maxPerRow": 2,
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "9.5.7",
"pointradius": 5,
"points": false,
"renderer": "flot",
"repeat": "mempool",
"repeatDirection": "h",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "jvm_memory_pool_bytes_max{pool=\"$mempool\",job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"interval": "",
"intervalFactor": 1,
"legendFormat": "Max",
"metric": "jvm_memory_bytes_used",
"refId": "B",
"step": 5
},
{
"datasource": {
"uid": "$datasource"
},
"expr": "jvm_memory_pool_bytes_used{pool=\"$mempool\",job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"interval": "",
"intervalFactor": 1,
"legendFormat": "Used",
"metric": "jvm_memory_bytes_used",
"refId": "A",
"step": 5
},
{
"datasource": {
"uid": "$datasource"
},
"expr": "jvm_memory_pool_bytes_committed{pool=\"$mempool\",job=\"$job\",instance=\"$instance\"}",
"format": "time_series",
"interval": "",
"intervalFactor": 1,
"legendFormat": "Committed",
"metric": "jvm_memory_bytes_used",
"refId": "C",
"step": 5
}
],
"thresholds": [],
"timeRegions": [],
"title": "Memory pool [$mempool]",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"mode": "time",
"show": true,
"values": []
},
"yaxes": [
{
"format": "bytes",
"logBase": 1,
"show": true
},
{
"format": "short",
"logBase": 1,
"show": true
}
],
"yaxis": {
"align": false
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"uid": "$datasource"
},
"decimals": 0,
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 9,
"w": 12,
"x": 0,
"y": 53
},
"hiddenSeries": false,
"id": 6,
"legend": {
"alignAsTable": true,
"avg": false,
"current": true,
"max": true,
"min": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "9.5.7",
"pointradius": 5,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"datasource": {
"uid": "$datasource"
},
"expr": "increase(jvm_gc_collection_seconds_count{job=\"$job\",instance=~\"$instance\"}[$__interval])",
"format": "time_series",
"interval": "60s",
"intervalFactor": 1,
"legendFormat": "{{gc}}",
"metric": "",
"refId": "A",
"step": 10
}
],
"thresholds": [],
"timeRegions": [],
"title": "GC count increase",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"mode": "time",
"show": true,
"values": []
},
"yaxes": [
{
"decimals": 0,
"format": "short",
"logBase": 1,
"show": true
},
{
"format": "short",
"logBase": 1,
"show": false
}
],
"yaxis": {
"align": false
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": {
"uid": "$datasource"
},
"decimals": 0,
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 9,
"w": 12,
"x": 12,
"y": 53
},
"hiddenSeries": false,
"id": 5,
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