JMXtrans + InfluxDB + Grafana实现Zookeeper性能指标监控

一、总体效果图

这里是将集群全部放在一起，可以根据自己的审美看怎么放

二、监控指标

其中有些指标与第一篇Zookeeper通过四字命令基础监控（Zabbix）的四字命令的指标是有重复的，二者选一个则可

三、实现

1、influxdb的安装

1）设置yum源

cat <<EOF | sudo tee /etc/yum.repos.d/influxdb.repo
[influxdb]
name = InfluxDB Repository - RHEL \$releasever
baseurl = https://repos.influxdata.com/rhel/\$releasever/\$basearch/stable
enabled =
gpgcheck =
gpgkey = https://repos.influxdata.com/influxdb.key
EOF

2）安装influxdb

yum install influxdb
systemctl start influxdb

3）修改配置文件（元数据以及数据存放目录）

[root@ip---- influxDB]# cat /etc/influxdb/influxdb.conf |grep "^\s*[^# \t].*$"
[meta]
  dir = "/influxDB/meta"
[data]
  dir = "/influxDB/data"
  wal-dir = "/influxDB/wal"
  series-id-set-cache-size =
[coordinator]
[retention]
[shard-precreation]
[monitor]
[http]
[logging]
[subscriber]
[[graphite]]
[[collectd]]
[[opentsdb]]
[[udp]]
[continuous_queries]
[tls]

4、数据目录授权

chown -R influxdb.influxdb /influxDB

5、重启influxdb

systemctl restart influxdb

6、创建zookeeper数据库，以及创建账号密码

CREATE USER "admin" WITH PASSWORD "admin" WITH ALL PRIVILEGES
create database zookeeper

2、zookeeper上打开JMX

1）vim ${Zookeeper-Home}/conf/zookeeper-env.sh

JMXLOCALONLY=false
JMXDISABLE=false
JMXPORT=
JMXAUTH=false
JMXSSL=false

2、重启Zookeeper

./zkServer.sh restart

3、JMXtrans的安装

1）安装配置jmxtrans

下载地址https://oss.sonatype.org/content/repositories/snapshots/org/jmxtrans/jmxtrans/ 这里有最新的版本，用老的版本有一些问题 ；JMXtrans可以随意安装在任何一台机器上，不是必须安装在Zookeeper机器上，只要JMXtrans与Zookeeper机器的网络及端口是通的就可以

wget https://oss.sonatype.org/content/repositories/snapshots/org/jmxtrans/jmxtrans/271-SNAPSHOT/jmxtrans-271-20190109.091025-10.rpm
yum -y install jmxtrans--20190109.091025-.rpm

2）它的目录文件

/var/lib/jmxtrans
/var/log/jmxtrans
/etc/rc.d/init.d/jmxtrans
/etc/jmxtrans
/usr/share/jmxtrans
/usr/share/jmxtrans/bin/jmxtrans
/usr/share/jmxtrans/lib/org/jmxtrans
/usr/share/jmxtrans/lib/org/jmxtrans/jmxtrans
/usr/bin/jmxtrans
/run/jmxtrans
/run/lock/subsys/jmxtrans

3）编辑zookeeper.json文件并放到/var/lib/jmxtrans/目录

一般我们的Zookeeper是一个集群，比如当我们的Zookeeper为3台的时候，则需要弄三份zookeeper.json文件，每一份对应Zookeeper集群的每一台机器，通过里面的host和port对应

{
    "servers": [{
        "port": ,
        "host": "zookeeper-IP",
        "alias": "zk",
        "queries": [{
            "outputWriters": [{
                "@class": "com.googlecode.jmxtrans.model.output.InfluxDbWriterFactory",
                "url": "http://localhost:8086/",
                "database": "zookeeper",
                "username": "admin",
                "password": "admin"
            }],
            "obj": "org.apache.ZooKeeperService:name0=ReplicatedServer_id*",
            "attr": ["QuorumSize"]
        },
        {
            "outputWriters": [{
                "@class": "com.googlecode.jmxtrans.model.output.InfluxDbWriterFactory",
                "url": "http://localhost:8086/",
                "database": "zookeeper",
                "username": "admin",
                "password": "admin"
            }],
            "obj": "org.apache.ZooKeeperService:name0=ReplicatedServer_id*,name1=replica*,name2=*",
            "attr": ["MaxClientCnxnsPerHost",
            "MaxRequestLatency",
            "AvgRequestLatency",
            "MinRequestLatency",
            "MaxSessionTimeout",
            "MinSessionTimeout",
            "OutstandingRequests",
            "PacketsReceived",
            "PacketsSent",
            "PendingRevalidationCount",
            "TickTime"]
        },
        {
            "outputWriters": [{
                "@class": "com.googlecode.jmxtrans.model.output.InfluxDbWriterFactory",
                "url": "http://localhost:8086/",
                "database": "zookeeper",
                "username": "admin",
                "password": "admin"
            }],
            "obj": "org.apache.ZooKeeperService:name0=ReplicatedServer_id*,name1=replica*,name2=*,name3=InMemoryDataTree",
            "attr": ["NodeCount",
            "WatchCount"]
        },
        {
            "outputWriters": [{
                "@class": "com.googlecode.jmxtrans.model.output.InfluxDbWriterFactory",
                "url": "http://localhost:8086/",
                "database": "zookeeper",
                "username": "admin",
                "password": "admin"
            }],
            "obj": "org.apache.ZooKeeperService:name0=ReplicatedServer_id*,name1=replica*,name2=*,name3=Connections,name4=*,name5=*",
            "resultAlias": "Clients",
            "attr": ["AvgLatency",
            "LastLatency",
            "MaxLatency",
            "MinLatency",
            "OutstandingRequests",
            "PacketsReceived",
            "PacketsSent"]
        },
        {
            "outputWriters": [{
                "@class": "com.googlecode.jmxtrans.model.output.InfluxDbWriterFactory",
                "url": "http://localhost:8086/",
                "database": "zookeeper",
                "username": "admin",
                "password": "admin"
            }],
            "obj": "org.apache.ZooKeeperService:name0=StandaloneServer_port*",
            "resultAlias": "Clients",
            "attr": ["AvgLatency",
            "LastLatency",
            "MaxLatency",
            "MinLatency",
            "OutstandingRequests",
            "PacketsReceived",
            "PacketsSent",
            "NumAliveConnections"]
        },
        {
            "outputWriters": [{
                "@class": "com.googlecode.jmxtrans.model.output.InfluxDbWriterFactory",
                "url": "http://localhost:8086/",
                "database": "zookeeper",
                "username": "admin",
                "password": "admin"
            }],
            "obj": "java.lang:type=Memory",
            "resultAlias": "Memory",
            "attr": ["HeapMemoryUsage",
            "NonHeapMemoryUsage"]
        },
        {
            "outputWriters": [{
                "@class": "com.googlecode.jmxtrans.model.output.InfluxDbWriterFactory",
                "url": "http://localhost:8086/",
                "database": "zookeeper",
                "username": "admin",
                "password": "admin"
            }],
            "obj": "java.lang:type=OperatingSystem",
            "resultAlias": "Process",
            "attr": ["OpenFileDescriptorCount",
            "ProcessCpuLoad"]
        },
        {
            "outputWriters": [{
                "@class": "com.googlecode.jmxtrans.model.output.InfluxDbWriterFactory",
                "url": "http://localhost:8086/",
                "database": "zookeeper",
                "username": "admin",
                "password": "admin"
            }],
            "obj": "java.lang:type=Threading",
            "resultAlias": "Threading",
            "attr": ["ThreadCount"]
        }],
        "numQueryThreads":
    }]
    }

4）启动JMXtrans

启动后，查看日志/var/log/jmxtrans/jmxtrans.log，看是否启动成功，若有错误则根据对应的错误解决就可以

/usr/share/jmxtrans/bin/jmxtrans start

4、Grafna上配置数据源

当创建Query，选择Influxdb数据源后，若有对应的指标出来，表明是OK的