Prometheus-JVM

在这里插入图片描述

一. JVM监控

  • 通过 jmx_exporter 启动端口来实现JVM的监控

Github

Kubernetes Deployment Java 服务，修改

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

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

    - 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
{
  "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",
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}

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