自适应型网站建设推荐,设计什么网站简单,有没有免费做片头的网站,口碑好的合肥网站建设文章目录 1. 监控指标采集1.1 zk版本高于3.6.0监控指标采集1.2 zk版本低于3.6.0监控指标采集1.3 配置promethues采集和大盘 2. 核心告警指标3. 参考文章 探讨zk的监控数据采集方式以及需要关注的核心指标#xff0c;便于日常生产进行监控和巡检。
1. 监控指标采集
3.6.0 版本… 文章目录 1. 监控指标采集1.1 zk版本高于3.6.0监控指标采集1.2 zk版本低于3.6.0监控指标采集1.3 配置promethues采集和大盘 2. 核心告警指标3. 参考文章 探讨zk的监控数据采集方式以及需要关注的核心指标便于日常生产进行监控和巡检。
1. 监控指标采集
3.6.0 版本后原生支持开放指标接口供Prometheus采集。如果低于3.6.0 版本只能使用zookeeper-exporter进行采集
1.1 zk版本高于3.6.0监控指标采集
详细的可以参考 ZooKeeper Monitor Guide
具体操作如下 1 调整zoo.cfg配置增加配置
metricsProvider.classNameorg.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
metricsProvider.httpPort7000
metricsProvider.exportJvmInfotrue指标的暴露接口是7000完成配置并重启zk后可以获取对应的指标。 curl localhost:7000/metrics1.2 zk版本低于3.6.0监控指标采集
可以通过 zookeeper-exporter 下载zookeeper-exporter的安装包并进行配置。
进程启动配置
./zookeeper-exporter -listen 0.0.0.0:7000 -zk-hosts Master:2181,Slave1:2181,Slave2:2181更多使用方法可以参考 文档
指标的暴露接口是7000完成配置并重启zk后可以获取对应的指标。 curl localhost:7000/metrics1.3 配置promethues采集和大盘
完成指标采集后可以通过prometheus配置监控、告警和大盘。
配置prometheus的指标采集任务 - job_name: zkstatic_configs:- targets: [172.19.0.2:7000,172.19.0.3:7000,172.19.0.4:7000]完成prometheus监控指标后就可以配置grafana大盘grafana的dashboard官网可以下载很多优秀的大盘进行借鉴本文不再追溯。
2. 核心告警指标
在 ZooKeeper Monitor Guide中记录了zk的关键指标进行配置告警可以参考。
groups:
- name: zk-alert-examplerules:- alert: ZooKeeper server is downexpr: up 0for: 1mlabels:severity: criticalannotations:summary: Instance {{ $labels.instance }} ZooKeeper server is downdescription: {{ $labels.instance }} of job {{$labels.job}} ZooKeeper server is down: [{{ $value }}].- alert: create too many znodesexpr: znode_count 1000000for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} create too many znodesdescription: {{ $labels.instance }} of job {{$labels.job}} create too many znodes: [{{ $value }}].- alert: create too many connectionsexpr: num_alive_connections 50 # suppose we use the default maxClientCnxns: 60for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} create too many connectionsdescription: {{ $labels.instance }} of job {{$labels.job}} create too many connections: [{{ $value }}].- alert: znode total occupied memory is too bigexpr: approximate_data_size /1024 /1024 1 * 1024 # more than 1024 MB(1 GB)for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} znode total occupied memory is too bigdescription: {{ $labels.instance }} of job {{$labels.job}} znode total occupied memory is too big: [{{ $value }}] MB.- alert: set too many watchexpr: watch_count 10000for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} set too many watchdescription: {{ $labels.instance }} of job {{$labels.job}} set too many watch: [{{ $value }}].- alert: a leader election happensexpr: increase(election_time_count[5m]) 0for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} a leader election happensdescription: {{ $labels.instance }} of job {{$labels.job}} a leader election happens: [{{ $value }}].- alert: open too many filesexpr: open_file_descriptor_count 300for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} open too many filesdescription: {{ $labels.instance }} of job {{$labels.job}} open too many files: [{{ $value }}].- alert: fsync time is too longexpr: rate(fsynctime_sum[1m]) 100for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} fsync time is too longdescription: {{ $labels.instance }} of job {{$labels.job}} fsync time is too long: [{{ $value }}].- alert: take snapshot time is too longexpr: rate(snapshottime_sum[5m]) 100for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} take snapshot time is too longdescription: {{ $labels.instance }} of job {{$labels.job}} take snapshot time is too long: [{{ $value }}].- alert: avg latency is too highexpr: avg_latency 100for: 1mlabels:severity: warningannotations:summary: Instance {{ $labels.instance }} avg latency is too highdescription: {{ $labels.instance }} of job {{$labels.job}} avg latency is too high: [{{ $value }}].- alert: JvmMemoryFillingUpexpr: jvm_memory_bytes_used / jvm_memory_bytes_max{areaheap} 0.8for: 5mlabels:severity: warningannotations:summary: JVM memory filling up (instance {{ $labels.instance }})description: JVM memory is filling up ( 80%)\n labels: {{ $labels }} value {{ $value }}\n3. 参考文章
ZooKeeper Monitor Guide
