我要评论最近在搞kafka集群监控，之前也是看了网上的很多资料。之所以使用jmxtrans+influxdb+grafana是因为界面酷炫，可以定制化，缺点是不能操作kafka集群，可能需要配合kafka manager一起使用。
环境信息
centos linux release 7.6.1810 (core)
jdk1.8.0_201
zookeeper-3.4.14
kafka_2.11-2.2.0
开启kafka jmx端口
jmx（java management extensions，即java管理扩展）是一个为应用程序、设备、系统等植入管理功能的框架。jmx可以跨越一系列异构操作系统平台、系统体系结构和网络传输协议，灵活的开发无缝集成的系统、网络和服务管理应用。kafka做为一款java应用，已经定义了丰富的性能指标，(可以参考)，通过jmx可以轻松对其进行监控。
在${kafka_home}/bin/路径下修改kafka-run-class.sh脚本，第一行增加jmx_port=9999即可。
jmx_port=9999
重启kafka
./bin/kafka-server-stop.sh ./bin/kafka-server-start.sh -daemon ./config/server.properties
重启后查看kafka以及jmx端口状态
ps -ef | grep kafka root 8273 1 99 02:32 pts/0 00:00:09 /opt/jdk1.8.0_201/bin/java -xmx1g -xms1g -server -xx:+useg1gc -xx:maxgcpausemillis=20 ...... kafka.kafka ./config/server.properties netstat -anop | grep 9999 tcp6 0 0 :::9999 :::* listen 8273/java off (0.00/0/0)
安装influxdb
influxdb是一个时间序列数据库，用于处理海量写入与负载查询。influxdb旨在用作涉及大量时间戳数据的任何用例（包括devops监控，应用程序指标，物联网传感器数据和实时分析）的后端存储。
下载influxdb rpm安装包
wget https://dl.influxdata.com/influxdb/releases/influxdb-1.7.5.x86_64.rpm --2019-04-10 02:52:30-- https://dl.influxdata.com/influxdb/releases/influxdb-1.7.5.x86_64.rpm resolving dl.influxdata.com (dl.influxdata.com)... 54.192.151.21, 54.192.151.81, 54.192.151.87, ... connecting to dl.influxdata.com (dl.influxdata.com)|54.192.151.21|:443... connected. http request sent, awaiting response... 200 ok length: 46536692 (44m) [application/octet-stream] saving to: ‘influxdb-1.7.5.x86_64.rpm’ 100%[================================================================================================================================================================================>] 46,536,692 440kb/s in 60s 2019-04-10 02:53:37 (756 kb/s) - ‘influxdb-1.7.5.x86_64.rpm’ saved [46536692/46536692]
安装rpm包
rpm -ivh influxdb-1.7.5.x86_64.rpm preparing... ################################# [100%] updating / installing... 1:influxdb-1.7.5-1 ################################# [100%] created symlink from /etc/systemd/system/influxd.service to /usr/lib/systemd/system/influxdb.service. created symlink from /etc/systemd/system/multi-user.target.wants/influxdb.service to /usr/lib/systemd/system/influxdb.service.
启动influxdb
service influxdb start redirecting to /bin/systemctl start influxdb.service
查看influxdb状态
ps -ef | grep influxdb
influxdb 8475 1 2 03:01 ? 00:00:00 /usr/bin/influxd -config /etc/influxdb/influxdb.conf
root 8486 7007 0 03:02 pts/0 00:00:00 grep --color=auto influxdb
service influxdb status
redirecting to /bin/systemctl status influxdb.service
● influxdb.service - influxdb is an open-source, distributed, time series database
loaded: loaded (/usr/lib/systemd/system/influxdb.service; enabled; vendor preset: disabled)
active: active (running) since wed 2019-04-10 03:01:48 edt; 22s ago
docs: https://docs.influxdata.com/influxdb/
main pid: 8475 (influxd)
cgroup: /system.slice/influxdb.service
└─8475 /usr/bin/influxd -config /etc/influxdb/influxdb.conf
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.375804z lvl=info msg="starting precreation service" log_id=0eiwgwrl000 service=shard-precreation check_interval=10m advance_period=30m
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.375810z lvl=info msg="starting snapshot service" log_id=0eiwgwrl000 service=snapshot
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.375816z lvl=info msg="starting continuous query service" log_id=0eiwgwrl000 service=continuous_querier
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.375826z lvl=info msg="starting http service" log_id=0eiwgwrl000 service=httpd authentication=false
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.375830z lvl=info msg="opened http access log" log_id=0eiwgwrl000 service=httpd path=stderr
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.375936z lvl=info msg="listening on http" log_id=0eiwgwrl000 service=httpd addr=[::]:8086 https=false
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.375949z lvl=info msg="starting retention policy enforcement service" log_id=0eiwgwrl000 service=retention check_interval=30m
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.376138z lvl=info msg="listening for signals" log_id=0eiwgwrl000
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.376389z lvl=info msg="storing statistics" log_id=0eiwgwrl000 service=monitor db_instance=_internal db_rp=monitor interval=10s
apr 10 03:01:48 node1 influxd[8475]: ts=2019-04-10t07:01:48.376534z lvl=info msg="sending usage statistics to usage.influxdata.com" log_id=0eiwgwrl000
使用influxdb客户端
influx connected to http://localhost:8086 version 1.7.5 influxdb shell version: 1.7.5 enter an influxql query >
创建用户和数据库
> create user "admin" with password 'admin' with all privileges
> create database "jmxdb"
创建完成influxdb的用户和数据库暂时就够用了，其它简单操作如下，后面会用到
#创建数据库 create database "db_name" #显示所有的数据库 show databases #删除数据库 drop database "db_name" #使用数据库 use db_name #显示该数据库中所有的表 show measurements #创建表，直接在插入数据的时候指定表名 insert test,host=127.0.0.1,monitor_name=test count=1 #删除表 drop measurement "measurement_name" #退出 quit
安装jmxtrans
jmxtrans的作用是自动去jvm中获取所有jmx格式数据，并按照某种格式（json文件配置格式）输出到其他应用程序（本例中的influxdb）。
下载jmxtrans rpm安装包
wget http://central.maven.org/maven2/org/jmxtrans/jmxtrans/270/jmxtrans-270.rpm --2019-04-10 03:18:14-- http://central.maven.org/maven2/org/jmxtrans/jmxtrans/270/jmxtrans-270.rpm resolving central.maven.org (central.maven.org)... 151.101.40.209 connecting to central.maven.org (central.maven.org)|151.101.40.209|:80... connected. http request sent, awaiting response... 200 ok length: 18750744 (18m) [application/x-rpm] saving to: ‘jmxtrans-270.rpm’ 100%[================================================================================================================================================================================>] 18,750,744 342kb/s in 43s
2019-04-10 03:18:59 (422 kb/s) - ‘jmxtrans-270.rpm’ saved [18750744/18750744]
安装rpm包
rpm -ivh jmxtrans-270.rpm
preparing... ################################# [100%]
updating / installing...
1:jmxtrans-270-1 ################################# [100%]
jmxtrans相关路径
jmxtrans安装目录：/usr/share/jmxtrans json文件默认目录：/var/lib/jmxtrans/ 日志路径：/var/log/jmxtrans/jmxtrans.log
配置json，jmxtrans的github上有一段示例配置
{
"servers" : [ {
"port" : "1099",
"host" : "w2",
"queries" : [ {
"obj" : "java.lang:type=memory",
"attr" : [ "heapmemoryusage", "nonheapmemoryusage" ],
"resultalias":"jvmmemory",
"outputwriters" : [ {
"@class" : "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url" : "http://127.0.0.1:8086/",
"username" : "admin",
"password" : "admin",
"database" : "jmxdb",
"tags" : {"application" : "kafka"}
} ]
} ]
} ]
}
host：监控服务器
port：jmx端口
obj：对应jmx的objectname，就是我们要监控的指标
attr：对应objectname的属性，可以理解为我们要监控的指标的值
resultalias：对应metric 的名称，在influxdb里面就是measurements名
tags：对应influxdb的tag功能，对与存储在同一个measurements里面的不同监控指标可以做区分，我们在用grafana绘图的时候会用到，建议对每个监控指标都打上tags
启动jmxtrans
service jmxtrans start starting jmxtrans...
查看日志没有报错即为成功
tail /var/log/jmxtrans/jmxtrans.log info | jvm 1 | 2019/04/10 04:44:31 | using thread pool 'org.quartz.simpl.simplethreadpool' - with 10 threads. info | jvm 1 | 2019/04/10 04:44:31 | using job-store 'org.quartz.simpl.ramjobstore' - which does not support persistence. and is not clustered. info | jvm 1 | 2019/04/10 04:44:31 | info | jvm 1 | 2019/04/10 04:44:31 | 2019-04-10 04:44:31 [wrappersimpleappmain] info org.quartz.impl.stdschedulerfactory - quartz scheduler 'serverscheduler' initialized from an externally opened inputstream. info | jvm 1 | 2019/04/10 04:44:31 | 2019-04-10 04:44:31 [wrappersimpleappmain] info org.quartz.impl.stdschedulerfactory - quartz scheduler version: 1.8.6 info | jvm 1 | 2019/04/10 04:44:31 | 2019-04-10 04:44:31 [wrappersimpleappmain] info org.quartz.core.quartzscheduler - jobfactory set to: com.googlecode.jmxtrans.guice.guicejobfactory@23822296 2019-04-10 04:44:31 [wrappersimpleappmain] level com.googlecode.jmxtrans.jmxtransformer [jmxtransformer.java:177] - starting jmxtrans on : /var/lib/jmxtrans 2019-04-10 04:44:31 [wrappersimpleappmain] level org.quartz.core.quartzscheduler [quartzscheduler.java:519] - scheduler serverscheduler_$_node11554885871753 started. info | jvm 1 | 2019/04/10 04:44:31 | 2019-04-10 04:44:31 [wrappersimpleappmain] info c.googlecode.jmxtrans.jmxtransformer - starting jmxtrans on : /var/lib/jmxtrans info | jvm 1 | 2019/04/10 04:44:31 | 2019-04-10 04:44:31 [wrappersimpleappmain] info org.quartz.core.quartzscheduler - scheduler serverscheduler_$_node11554885871753 started.
附上两段通用的json文件
base_127.0.0.1.json
{
"servers": [{
"port": "9999",
"host": "127.0.0.1",
"queries": [{
"obj": "kafka.server:type=brokertopicmetrics,name=bytesinpersec",
"attr": ["count", "oneminuterate"],
"resultalias": "bytesinpersec",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "bytesinpersec"
}
}]
}, {
"obj": "kafka.server:type=brokertopicmetrics,name=bytesoutpersec",
"attr": ["count", "oneminuterate"],
"resultalias": "bytesoutpersec",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "bytesoutpersec"
}
}]
}, {
"obj": "kafka.server:type=brokertopicmetrics,name=bytesrejectedpersec",
"attr": ["count", "oneminuterate"],
"resultalias": "bytesrejectedpersec",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "bytesrejectedpersec"
}
}]
}, {
"obj": "kafka.server:type=brokertopicmetrics,name=messagesinpersec",
"attr": ["count", "oneminuterate"],
"resultalias": "messagesinpersec",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "messagesinpersec"
}
}]
}, {
"obj": "kafka.network:type=requestmetrics,name=requestspersec,request=fetchconsumer",
"attr": ["count"],
"resultalias": "requestspersec",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"request": "fetchconsumer"
}
}]
}, {
"obj": "kafka.network:type=requestmetrics,name=requestspersec,request=fetchfollower",
"attr": ["count"],
"resultalias": "requestspersec",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"request": "fetchfollower"
}
}]
}, {
"obj": "kafka.network:type=requestmetrics,name=requestspersec,request=produce",
"attr": ["count"],
"resultalias": "requestspersec",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"request": "produce"
}
}]
}, {
"obj": "java.lang:type=memory",
"attr": ["heapmemoryusage", "nonheapmemoryusage"],
"resultalias": "memoryusage",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "memoryusage"
}
}]
}, {
"obj": "java.lang:type=garbagecollector,name=*",
"attr": ["collectioncount", "collectiontime"],
"resultalias": "gc",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "gc"
}
}]
}, {
"obj": "java.lang:type=threading",
"attr": ["peakthreadcount", "threadcount"],
"resultalias": "thread",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "thread"
}
}]
}, {
"obj": "kafka.server:type=replicafetchermanager,name=maxlag,clientid=replica",
"attr": ["value"],
"resultalias": "replicafetchermanager",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "maxlag"
}
}]
}, {
"obj": "kafka.server:type=replicamanager,name=partitioncount",
"attr": ["value"],
"resultalias": "replicamanager",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "partitioncount"
}
}]
}, {
"obj": "kafka.server:type=replicamanager,name=underreplicatedpartitions",
"attr": ["value"],
"resultalias": "replicamanager",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "underreplicatedpartitions"
}
}]
}, {
"obj": "kafka.server:type=replicamanager,name=leadercount",
"attr": ["value"],
"resultalias": "replicamanager",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "leadercount"
}
}]
}, {
"obj": "kafka.network:type=requestmetrics,name=totaltimems,request=fetchconsumer",
"attr": ["count", "max"],
"resultalias": "totaltimems",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "fetchconsumer"
}
}]
}, {
"obj": "kafka.network:type=requestmetrics,name=totaltimems,request=fetchfollower",
"attr": ["count", "max"],
"resultalias": "totaltimems",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "fetchfollower"
}
}]
}, {
"obj": "kafka.network:type=requestmetrics,name=totaltimems,request=produce",
"attr": ["count", "max"],
"resultalias": "totaltimems",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "produce"
}
}]
}, {
"obj": "kafka.server:type=replicamanager,name=isrshrinkspersec",
"attr": ["count"],
"resultalias": "replicamanager",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "isrshrinkspersec"
}
}]
}]
}]
}
topica_1.json
{
"servers": [{
"port": "9999",
"host": "127.0.0.1",
"queries": [{
"obj": "kafka.server:type=brokertopicmetrics,name=bytesinpersec,topic=topica",
"attr": ["count"],
"resultalias": "topica",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "bytesinpersec"
}
}]
}, {
"obj": "kafka.server:type=brokertopicmetrics,name=bytesoutpersec,topic=topica",
"attr": ["count"],
"resultalias": "topica",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "bytesoutpersec"
}
}]
}, {
"obj": "kafka.server:type=brokertopicmetrics,name=messagesinpersec,topic=topica",
"attr": ["count"],
"resultalias": "topica",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "messagesinpersec"
}
}]
}, {
"obj": "kafka.log:type=log,name=logendoffset,topic=topica,partition=*",
"attr": ["value"],
"resultalias": "topica",
"outputwriters": [{
"@class": "com.googlecode.jmxtrans.model.output.influxdbwriterfactory",
"url": "http://127.0.0.1:8086/",
"username": "admin",
"password": "admin",
"database": "jmxdb",
"tags": {
"application": "logendoffset"
}
}]
}]
}]
}
安装grafana
grafana是一个跨平台的开源的度量分析和可视化工具，可以通过将采集的数据查询然后可视化的展示，并及时通知。
下载jmxtrans rpm安装包
wget https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana-6.0.2-1.x86_64.rpm --2019-04-10 04:53:15-- https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana-6.0.2-1.x86_64.rpm resolving s3-us-west-2.amazonaws.com (s3-us-west-2.amazonaws.com)... 52.218.144.92 connecting to s3-us-west-2.amazonaws.com (s3-us-west-2.amazonaws.com)|52.218.144.92|:443... connected. http request sent, awaiting response... 200 ok length: 56002012 (53m) [application/x-redhat-package-manager] saving to: ‘grafana-6.0.2-1.x86_64.rpm’ 100%[================================================================================================================================================================================>] 56,002,012 177kb/s in 2m 52s
2019-04-10 04:56:08 (318 kb/s) - ‘grafana-6.0.2-1.x86_64.rpm’ saved [56002012/56002012]
安装rpm包
rpm -ivh grafana-6.0.2-1.x86_64.rpm
warning: grafana-6.0.2-1.x86_64.rpm: header v4 rsa/sha1 signature, key id 24098cb6: nokey
error: failed dependencies:
fontconfig is needed by grafana-6.0.2-1.x86_64
urw-fonts is needed by grafana-6.0.2-1.x86_64
缺少依赖，下载依赖
yum install --downloadonly --downloaddir=./ fontconfig yum localinstall fontconfig-2.13.0-4.3.el7.x86_64.rpm yum install --downloadonly --downloaddir=./ urw-fonts yum localinstall urw-fonts-2.4-16.el7.noarch.rpm rpm -ivh grafana-6.0.2-1.x86_64.rpm warning: grafana-6.0.2-1.x86_64.rpm: header v4 rsa/sha1 signature, key id 24098cb6: nokey preparing... ################################# [100%] updating / installing... 1:grafana-6.0.2-1 ################################# [100%] ### not starting on installation, please execute the following statements to configure grafana to start automatically using systemd sudo /bin/systemctl daemon-reload sudo /bin/systemctl enable grafana-server.service ### you can start grafana-server by executing sudo /bin/systemctl start grafana-server.service posttrans: running script
启动grafana
service grafana-server start starting grafana-server (via systemctl): [ ok ]
打开浏览器
http://127.0.0.1:3000
先输入默认用户名密码admin/admin
设置新密码
点击add data source
选择influxdb
输入连接信息后点击save & test
通过后点击back返回
左侧 + 可以创建或引入仪表盘
类似于数据库sql语句，查询相应的指标
计算平均每秒数值可以使用如上语法，用当前值减1分钟之前的值再除以60
具体展示效果就看各位的审美能力，这里就不贴出来了。至此，kafka的jmx指标监控就完成了。
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