Prometheus监控ZooKeeper

1. 简介

ZooKeeper是一个分布式协调服务,在分布式系统中扮演着重要角色。为了确保ZooKeeper集群的健康运行,有效的监控至关重要。本文将详细介绍如何使用Prometheus监控ZooKeeper,包括安装配置、关键指标、告警设置以及最佳实践。

2. 安装和配置

2.1 安装ZooKeeper Exporter

ZooKeeper Exporter是连接ZooKeeper和Prometheus的桥梁,它从ZooKeeper收集指标并以Prometheus可以理解的格式暴露这些指标。

下载ZooKeeper Exporter

wget https://github.com/carlpett/zookeeper_exporter/releases/download/v1.0.2/zookeeper_exporter
chmod +x zookeeper_exporter

注意: 此exporter适用于ZooKeeper 3.4+版本。

启动ZooKeeper Exporter

nohup ./zookeeper_exporter -zookeeper <zookeeper_host>:<zookeeper_port> > /dev/null 2>&1 &

例如:

nohup ./zookeeper_exporter -zookeeper localhost:2181 > /dev/null 2>&1 &

2.2 配置Prometheus

修改Prometheus配置文件(通常是​​prometheus.yml​​),添加以下内容:

scrape_configs:
  - job_name: 'zookeeper'
    static_configs: