Prometheus系列——监控zookeeper

笔者所在公司有使用zookeeper集群，所以，也配置一下对于zookeeper这个集群的监控吧。

一、下载jmx_exporter

#linux下
cd /usr/local/prometheus
wget https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.3.1/jmx_prometheus_javaagent-0.3.1.jar

二、编写jmx_exporter配置文件

jmx_exporter官方推荐配置： https://github.com/prometheus/jmx_exporter/blob/master/example_configs/zookeeper.yaml

#将文件下载下来放到下面文件中/usr/local/prometheus/jmx-exporter.yaml

#cat /usr/local/prometheus/jmx-exporter.yaml

rules:    
# replicated Zookeeper    
- pattern: "org.apache.ZooKeeperService<name0=ReplicatedServer_id(\\d+)><>(\\w+)"    
name: "zookeeper_$2"    
type: GAUGE    
- pattern: "org.apache.ZooKeeperService<name0=ReplicatedServer_id(\\d+), name1=replica.(\\d+)><>(\\w+)"    
name: "zookeeper_$3"    
type: GAUGE    
labels:    
replicaId: "$2"    
- pattern: "org.apache.ZooKeeperService<name0=ReplicatedServer_id(\\d+), name1=replica.(\\d+), name2=(\\w+)><>(Packets\\w+)"    
name: "zookeeper_$4"    
type: COUNTER    
labels:    
replicaId: "$2"    
memberType: "$3"    
- pattern: "org.apache.ZooKeeperService<name0=ReplicatedServer_id(\\d+), name1=replica.(\\d+), name2=(\\w+)><>(\\w+)"    
name: "zookeeper_$4"    
type: GAUGE    
labels:    
replicaId: "$2"    
memberType: "$3"    
- pattern: "org.apache.ZooKeeperService<name0=ReplicatedServer_id(\\d+), name1=replica.(\\d+), name2=(\\w+), name3=(\\w+)><>(\\w+)"    
name: "zookeeper_$4_$5"    
type: GAUGE    
labels:    
replicaId: "$2"    
memberType: "$3"    
# standalone Zookeeper    
- pattern: "org.apache.ZooKeeperService<name0=StandaloneServer_port(\\d+)><>(\\w+)"    
type: GAUGE    
name: "zookeeper_$2"    
- pattern: "org.apache.ZooKeeperService<name0=StandaloneServer_port(\\d+), name1=InMemoryDataTree><>(\\w+)"    
type: GAUGE    
name: "zookeeper_$2"

三、修改zookeeper启动文件

修改bin/zkServer.sh，在第六十行添加内容

JMX_DIR="/usr/local/prometheus"
JVMFLAGS="$JVMFLAGS -javaagent:$JMX_DIR/jmx_prometheus_javaagent-0.3.1.jar=20000:$JMX_DIR/jmx-exporter.yaml"

启动zookeeper

使用命令验证是否配置成功：

curl localhost:20000/metrics

四、添加prometheus关于zookeeper的配置

# vim prometheus.yml

- job_name: 'zookeeper'
    static_configs:    
    - targets: ['192.168.1.200:20000']

重启prometheus，然后在Prometheus页面中的Targets中就能看到新加入的zookeeper，

grafana中可以搜索相应的dashboard，不再赘述。