【kafka】| 02 | cmak的安装和使用_启动cmak指定java版本

1 cmak简介

cmak是kafka-manager的新版本，这个管理工具可以很容易地发现分布在集群中的哪些topic分布不均匀，或者是分区在整个集群分布不均匀的的情况。它支持管理多个集群、选择副本、副本重新分配以及创建Topic。同时，这个管理工具也是一个非常好的可以快速浏览这个集群的工具。

2 cmak部署

2.1 java的环境

root@test02-prd:~# java -version
java version "1.8.0_281"
Java(TM) SE Runtime Environment (build 1.8.0_281-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.281-b09, mixed mode)
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2.2 安装方式

2.2.1 二进制包

2.2.1.1 下载地址

http://github.com/yahoo/kafka-manager
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进行解压

unzip cmak-3.0.0.5.zip
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2.2.1.1 修改配置文件

conf/application.conf
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默认配置信息

root@prd-devel-00:/data/soft/cmak-3.0.0.5/conf# cat application.conf 

# Copyright 2015 Yahoo Inc. Licensed under the Apache License, Version 2.0
# See accompanying LICENSE file.

# This is the main configuration file for the application.
# ~~~~~

# Secret key
# ~~~~~
# The secret key is used to secure cryptographics functions.
# If you deploy your application to several instances be sure to use the same key!
play.crypto.secret="^<csmm5Fx4d=r2HEX8pelM3iBkFVv?k[mc;IZE<_Qoq8EkX_/7@Zt6dP05Pzea3U"
play.crypto.secret=${?APPLICATION_SECRET}
play.http.session.maxAge="1h"

# The application languages
# ~~~~~
play.i18n.langs=["en"]

play.http.requestHandler = "play.http.DefaultHttpRequestHandler"
play.http.context = "/"
play.application.loader=loader.KafkaManagerLoader

# Settings prefixed with 'kafka-manager.' will be deprecated, use 'cmak.' instead.
# https://github.com/yahoo/CMAK/issues/713
kafka-manager.zkhosts="kafka-manager-zookeeper:2181"
kafka-manager.zkhosts=${?ZK_HOSTS}
cmak.zkhosts="kafka-manager-zookeeper:2181"
cmak.zkhosts=${?ZK_HOSTS}

pinned-dispatcher.type="PinnedDispatcher"
pinned-dispatcher.executor="thread-pool-executor"
application.features=["KMClusterManagerFeature","KMTopicManagerFeature","KMPreferredReplicaElectionFeature","KMReassignPartitionsFeature", "KMScheduleLeaderElectionFeature"]

akka {
  loggers = ["akka.event.slf4j.Slf4jLogger"]
  loglevel = "INFO"
}

akka.logger-startup-timeout = 60s

basicAuthentication.enabled=false
basicAuthentication.enabled=${?KAFKA_MANAGER_AUTH_ENABLED}

basicAuthentication.ldap.enabled=false
basicAuthentication.ldap.enabled=${?KAFKA_MANAGER_LDAP_ENABLED}
basicAuthentication.ldap.server=""
basicAuthentication.ldap.server=${?KAFKA_MANAGER_LDAP_SERVER}
basicAuthentication.ldap.port=389
basicAuthentication.ldap.port=${?KAFKA_MANAGER_LDAP_PORT}
basicAuthentication.ldap.username=""
basicAuthentication.ldap.username=${?KAFKA_MANAGER_LDAP_USERNAME}
basicAuthentication.ldap.password=""
basicAuthentication.ldap.password=${?KAFKA_MANAGER_LDAP_PASSWORD}
basicAuthentication.ldap.search-base-dn=""
basicAuthentication.ldap.search-base-dn=${?KAFKA_MANAGER_LDAP_SEARCH_BASE_DN}
basicAuthentication.ldap.search-filter="(uid=$capturedLogin$)"
basicAuthentication.ldap.search-filter=${?KAFKA_MANAGER_LDAP_SEARCH_FILTER}
basicAuthentication.ldap.group-filter=""
basicAuthentication.ldap.group-filter=${?KAFKA_MANAGER_LDAP_GROUP_FILTER}
basicAuthentication.ldap.connection-pool-size=10
basicAuthentication.ldap.connection-pool-size=${?KAFKA_MANAGER_LDAP_CONNECTION_POOL_SIZE}
basicAuthentication.ldap.ssl=false
basicAuthentication.ldap.ssl=${?KAFKA_MANAGER_LDAP_SSL}
basicAuthentication.ldap.ssl-trust-all=false
basicAuthentication.ldap.ssl-trust-all=${?KAFKA_MANAGER_LDAP_SSL_TRUST_ALL}

basicAuthentication.username="admin"
basicAuthentication.username=${?KAFKA_MANAGER_USERNAME}
basicAuthentication.password="password"
basicAuthentication.password=${?KAFKA_MANAGER_PASSWORD}

basicAuthentication.realm="Kafka-Manager"
basicAuthentication.excluded=["/api/health"] # ping the health of your instance without authentification


kafka-manager.consumer.properties.file=${?CONSUMER_PROPERTIES_FILE}
root@prd-devel-00:/data/soft/cmak-3.0.0.5/conf# 

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修改 application.conf
将 kafka-manager.zkhosts=“kafka-manager-zookeeper:2181” 中的 zookeeper 地址换成自己安装的，原配置的 kafka-manager.zkhosts ，cmak.zkhosts注释，参考下面：

#play.i18n.langs=["en"]
play.i18n.langs=["ch"]
 
play.http.requestHandler = "play.http.DefaultHttpRequestHandler"
play.http.context = "/"
play.application.loader=loader.KafkaManagerLoader
 
# Settings prefixed with 'kafka-manager.' will be deprecated, use 'cmak.' instead.
# https://github.com/yahoo/CMAK/issues/713
#kafka-manager.zkhosts="kafka-manager-zookeeper:2181"
#kafka-manager.zkhosts=${?ZK_HOSTS}
kafka-manager.zkhosts="192.xx.xx.xx:2181"
#cmak.zkhosts="kafka-manager-zookeeper:2181"
#cmak.zkhosts=${?ZK_HOSTS}
cmak.zkhosts="192.xx.xx.xx:2181"
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2.2.1.2 启动cmak

2.2.1.2.1 开启端口

• 各个宿主机（zookeeper 开通端口/或防火墙，保证cmak 服务器可访问对应端口）
• cmak 服务器开通页面访问端口（默认9000，若有使用冲突，可启动配置其他端口）
• 确保自己本地的ZK已经启动了之后，我们来启动Kafka-manager。
• kafka-manager 默认的端口是9000。可以根据实际情况，指定相应的端口。
• 可通过 -Dhttp.port，指定端口; -Dconfig.file=conf/application.conf指定配置文件

nohup bin/cmak -Dhttp.port=10010 1>nohup.out 2>&1 &
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2.2.2 k8s部署

3 cmak使用

3.1 topic概述

brokers Spread: broker 使用率，某个topic的partitions/brokers
brokers Skew：broker的分配倾斜率
失衡的broker：该broker上的partition数超过平均的partition，则该broker算失衡；
失衡倾斜率：失衡的broker/所有的broker。

3.2 其他操作

添加分片：Add Partitions
分片重分配：Manaual Partition Assignments
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