关于kubernetes:kubernetes-pod-级别的-jvm-监控

1. 下包

wget https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.13.0/jmx_prometheus_javaagent-0.13.0.jar

2. 配置 java 启动命令

-javaagent:/data/logs/jmx-exporter/jmx_prometheus_javaagent-0.13.0.jar=33334:/data/logs/jmx-exporter/config.yaml
/data/logs/jmx-exporter/jmx_prometheus_javaagent-0.13.0.jar:jar 包门路
33334: 监控端口
/data/logs/jmx-exporter/config.yaml: 配置文件

java -javaagent:/data/logs/jmx-exporter/jmx_prometheus_javaagent-0.13.0.jar=33334:/data/logs/jmx-exporter/config.yaml -jar -server -XX:MetaspaceSize=256M -XX:MaxMetaspaceSize=256M -Xms2048M -Xmx2048M -Xmn256M -Xss512K -XX:SurvivorRatio=4 -XX:+UseConcMarkSweepGC /starit-buckyshop-stat.jar --spring.profiles.active=newsuper

3. 配置 jmx 配置文件（发现所有监控项）

cat /mnt/jmx-exporter/config.yaml 
---
startDelaySeconds: 0
lowercaseOutputName: false
lowercaseOutputLabelNames: false
whitelistObjectNames: ["org.apache.cassandra.metrics:*"]
blacklistObjectNames: ["org.apache.cassandra.metrics:type=ColumnFamily,*"]
rules:
  - pattern: 'org.apache.cassandra.metrics<type=(\w+), name=(\w+)><>Value: (\d+)'
    name: cassandra_$1_$2
    value: $3
    valueFactor: 0.001
    labels: {}
    help: "Cassandra metric $1 $2"
    type: GAUGE
    attrNameSnakeCase: false

4. 配置 prometheus

cat ~/kube-prometheus-0.5.0/manifests/prometheus-additional.yaml 
- job_name: 'jmx-exporter'
  kubernetes_sd_configs:
    - role: pod
#  metrics_path: /metrics
  relabel_configs:
    - source_labels: [__address__]
      action: keep
      regex: '(.*):(.*)'
    - source_labels: [__meta_kubernetes_pod_container_port_number]
      action: keep
      regex: '33334'
    - source_labels: [__meta_kubernetes_namespace]
      action: replace
      target_label: kubernetes_namespace
    - source_labels: [__meta_kubernetes_pod_name]
      action: replace
      target_label: kubernetes_pod_name
  scheme: http

5. 配置 deployment

deployment 减少 jmx 的 container

6. 导入 grafana

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