zookeeper部署及集群测试

本文涉及的产品
服务治理 MSE Sentinel/OpenSergo,Agent数量 不受限
可视分析地图(DataV-Atlas),3 个项目,100M 存储空间
简介: zookeeper部署及集群测试环境三台测试机操作系统: centos7 ; hostname: c1 ; ip: 192.168.1.80操作系统: centos7 ; hostname: c2 ; ip: 192.168.1.81操作系统: centos7 ; hostname: c3 ; ip: 192.168.1.82备注注意要关闭防火墙查看磁盘状况为了避免磁盘使用不均而导致系统问题,因而先查看磁盘的分布情况。

zookeeper部署及集群测试

环境

三台测试机

  • 操作系统: centos7 ; hostname: c1 ; ip: 192.168.1.80
  • 操作系统: centos7 ; hostname: c2 ; ip: 192.168.1.81
  • 操作系统: centos7 ; hostname: c3 ; ip: 192.168.1.82

备注

注意要关闭防火墙

查看磁盘状况

为了避免磁盘使用不均而导致系统问题,因而先查看磁盘的分布情况。

[root@sso conf]# df -lh
Filesystem               Size  Used Avail Use% Mounted on
/dev/mapper/centos-root   50G   18G   33G  36% /
devtmpfs                 7.8G     0  7.8G   0% /dev
tmpfs                    7.8G     0  7.8G   0% /dev/shm
tmpfs                    7.8G   65M  7.7G   1% /run
tmpfs                    7.8G     0  7.8G   0% /sys/fs/cgroup
/dev/mapper/centos-var   900G  529M  900G   1% /var
/dev/mapper/centos-home   66G   12G   55G  18% /home
/dev/sda1                497M  168M  330M  34% /boot
tmpfs                    1.6G     0  1.6G   0% /run/user/0
[root@sso conf]#

/var目录共900G,只使用了1%不到,因此可以将后续的所有文件和程序存放在此目录下。当然,这要根据你的实际情况而定。

zookeeper安装

安装

 mkdir -p /var/download && cd /var/download
 wget -c http://www.eu.apache.org/dist/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz
 tar zxvf zookeeper-3.4.6.tar.gz
 mkdir -p /var/local/server
 mv zookeeper-3.4.6 /var/local/server/zookeeper
 cd /var/local/server/zookeeper/conf
 touch zoo.cfg

编辑zoo.cfg中加入如下内容:

tickTime=2000
dataDir=/var/data/zookeeper
dataLogDir=/var/local/server/zookeeper/log
clientPort=2181
initLimit=5
syncLimit=2
server.1=c1:2888:3888
server.2=c2:2888:3888
server.3=c3:2888:3888

保存

创建数据目录和日志目录:

mkdir -p /var/data/zookeeper
mkdir -p /var/local/server/zookeeper/log

如不创建启动时会报如下异常:

[root@sso conf]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Error contacting service. It is probably not running.

创建myid文件, id 与 zoo.cfg 中的序号对应

echo 1 > /var/data/zookeeper/myid

注意:

  • 注意,如果是c2c3中进行相应的修改
  • c2上应改为:echo 2 > /var/data/zookeeper/myid
  • c3上应改为:echo 3 > /var/data/zookeeper/myid

配置hosts文件:编辑/etc/hosts,加入如下内容:

192.168.1.80 c1
192.168.1.81 c2
192.168.1.82 c3

常用命令

启动

/var/local/server/zookeeper/bin/zkServer.sh start

查看状态

/var/local/server/zookeeper/bin/zkServer.sh status

重启

/var/local/server/zookeeper/bin/zkServer.sh restart

关闭

/var/local/server/zookeeper/bin/zkServer.sh stop

在其中一台用客户端连接

/var/local/server/zookeeper/bin/zkCli.sh -server c1:2181

操作实例:

  • 启动:/var/local/server/zookeeper/bin/zkServer.sh start
[root@sso conf]# /var/local/server/zookeeper/bin/zkServer.sh start
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
  • 查看状态:/var/local/server/zookeeper/bin/zkServer.sh status
[root@sso conf]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Error contacting service. It is probably not running.

此时发现zookeeper并没有正常运行。

查看日志more zookeeper.out,发现如下异常:

2016-08-25 09:55:54,088 [myid:1] - WARN  [WorkerSender[myid=1]:QuorumCnxManager@382] - Cannot open channel to 2 at election address c2/192.168.1.81:3888
java.net.NoRouteToHostException: No route to host
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:579)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:368)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:341)
        at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:449)
        at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:430)
        at java.lang.Thread.run(Thread.java:745)
2016-08-25 09:55:54,101 [myid:1] - WARN  [WorkerSender[myid=1]:QuorumCnxManager@382] - Cannot open channel to 3 at election address c3/192.168.1.82:3888
java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:579)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:368)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:341)
        at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:449)
        at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:430)
        at java.lang.Thread.run(Thread.java:745)
2016-08-25 09:55:54,287 [myid:1] - WARN  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@382] - Cannot open channel to 2 at election address c2/192.168.1.81:3888
java.net.NoRouteToHostException: No route to host
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:579)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:368)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:402)
        at org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:840)
        at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:762)

这是由于2、3号机器没有正常配置导致。可以在zoo.cfg中将其注释后再次尝试。

tickTime=2000
dataDir=/var/data/zookeeper
dataLogDir=/var/local/server/zookeeper/log
clientPort=2181
initLimit=5
syncLimit=2
server.1=c1:2888:3888
#server.2=c2:2888:3888
#server.3=c3:2888:3888

正常启动效果:

[root@sso conf]# /var/local/server/zookeeper/bin/zkServer.sh start
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@sso conf]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Mode: standalone

测试

在 c1 上连接 c1 上的 zookeeper

/var/local/server/zookeeper/bin/zkCli.sh -server c1:2181

[root@sso conf]# /var/local/server/zookeeper/bin/zkCli.sh -server c1:2181
Connecting to c1:2181
2016-08-25 10:06:30,235 [myid:] - INFO  [main:Environment@100] - Client environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09 GMT
2016-08-25 10:06:30,244 [myid:] - INFO  [main:Environment@100] - Client environment:host.name=sso.xxx.com
2016-08-25 10:06:30,244 [myid:] - INFO  [main:Environment@100] - Client environment:java.version=1.7.0_79
2016-08-25 10:06:30,250 [myid:] - INFO  [main:Environment@100] - Client environment:java.vendor=Oracle Corporation
2016-08-25 10:06:30,251 [myid:] - INFO  [main:Environment@100] - Client environment:java.home=/usr/local/jdk1.7.0_79/jre
2016-08-25 10:06:30,251 [myid:] - INFO  [main:Environment@100] - Client environment:java.class.path=/var/local/server/zookeeper/bin/../build/classes:/var/local/server/zookeeper/bin/../build/lib/*.jar:/var/local/server/zookeeper/bin/../lib/slf4j-log4j12-1.6.1.jar:/var/local/server/zookeeper/bin/../lib/slf4j-api-1.6.1.jar:/var/local/server/zookeeper/bin/../lib/netty-3.7.0.Final.jar:/var/local/server/zookeeper/bin/../lib/log4j-1.2.16.jar:/var/local/server/zookeeper/bin/../lib/jline-0.9.94.jar:/var/local/server/zookeeper/bin/../zookeeper-3.4.6.jar:/var/local/server/zookeeper/bin/../src/java/lib/*.jar:/var/local/server/zookeeper/bin/../conf:
2016-08-25 10:06:30,251 [myid:] - INFO  [main:Environment@100] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2016-08-25 10:06:30,252 [myid:] - INFO  [main:Environment@100] - Client environment:java.io.tmpdir=/tmp
2016-08-25 10:06:30,252 [myid:] - INFO  [main:Environment@100] - Client environment:java.compiler=<NA>
2016-08-25 10:06:30,252 [myid:] - INFO  [main:Environment@100] - Client environment:os.name=Linux
2016-08-25 10:06:30,252 [myid:] - INFO  [main:Environment@100] - Client environment:os.arch=amd64
2016-08-25 10:06:30,253 [myid:] - INFO  [main:Environment@100] - Client environment:os.version=3.10.0-327.10.1.el7.x86_64
2016-08-25 10:06:30,253 [myid:] - INFO  [main:Environment@100] - Client environment:user.name=root
2016-08-25 10:06:30,253 [myid:] - INFO  [main:Environment@100] - Client environment:user.home=/root
2016-08-25 10:06:30,254 [myid:] - INFO  [main:Environment@100] - Client environment:user.dir=/var/local/server/zookeeper/conf
2016-08-25 10:06:30,257 [myid:] - INFO  [main:ZooKeeper@438] - Initiating client connection, connectString=c1:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@194d62f1
Welcome to ZooKeeper!
2016-08-25 10:06:30,335 [myid:] - INFO  [main-SendThread(sso.xxx.com:2181):ClientCnxn$SendThread@975] - Opening socket connection to server sso.xxx.com/192.168.1.80:2181. Will not attempt to authenticate using SASL (unknown error)
JLine support is enabled
2016-08-25 10:06:30,349 [myid:] - INFO  [main-SendThread(sso.xxx.com:2181):ClientCnxn$SendThread@852] - Socket connection established to sso.xxx.com/192.168.1.80:2181, initiating session
2016-08-25 10:06:30,412 [myid:] - INFO  [main-SendThread(sso.xxx.com:2181):ClientCnxn$SendThread@1235] - Session establishment complete on server sso.xxx.com/192.168.1.80:2181, sessionid = 0x156bf70d7580000, negotiated timeout = 30000

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
[zk: c1:2181(CONNECTED) 0]

添加一个根节点目录zookeeper_project

create /project zookeeper_project

[zk: c1:2181(CONNECTED) 0] create /project  zookeeper_project
Created /project
[zk: c1:2181(CONNECTED) 1] get /project
zookeeper_project
cZxid = 0x2
ctime = Thu Aug 25 10:09:09 CST 2016
mZxid = 0x2
mtime = Thu Aug 25 10:09:09 CST 2016
pZxid = 0x2
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 17
numChildren = 0

此时说明单机配置成功

多机集群

取消zoo.cfg中server.2server.3的注释,最后zoo.cfg配置文件如下:

tickTime=2000
dataDir=/var/data/zookeeper
dataLogDir=/var/local/server/zookeeper/log
clientPort=2181
initLimit=5
syncLimit=2
server.1=c1:2888:3888
server.2=c2:2888:3888
server.3=c3:2888:3888

在c2和c3中执行类似的操作

多机联合测试

c1运行结果:

[root@sso conf]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Mode: leader

c2运行结果:

[root@cas zookeeper]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Mode: follower

c3运行结果:

[root@localhost zookeeper]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Mode: follower

同步测试

c1上执行:

create /c1project c1projecttestget /c1project

[zk: c1:2181(CONNECTED) 2] create /c1project c1projecttest
Created /c1project
[zk: c1:2181(CONNECTED) 1] get /c1project
c1projecttest
cZxid = 0x100000013
ctime = Thu Aug 25 11:03:49 CST 2016
mZxid = 0x100000013
mtime = Thu Aug 25 11:03:49 CST 2016
pZxid = 0x100000013
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 13
numChildren = 0

c2上查看同步结果:

get /c1project

[zk: c2:2181(CONNECTED) 0] get /c1project
c1projecttest
cZxid = 0x100000013
ctime = Thu Aug 25 11:03:49 CST 2016
mZxid = 0x100000013
mtime = Thu Aug 25 11:03:49 CST 2016
pZxid = 0x100000013
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 13
numChildren = 0

c3上查看同步结果:

[zk: c3:2181(CONNECTED) 4] get /c1project
c1projecttest
cZxid = 0x100000013
ctime = Thu Aug 25 11:03:49 CST 2016
mZxid = 0x100000013
mtime = Thu Aug 25 11:03:49 CST 2016
pZxid = 0x100000013
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 13
numChildren = 0

此时说明zookeeper集群配置成功。

从节点主动升级和接管成为主节点

leaderfollower的自动切换,前面我们知道c1是leader,当leader down掉后是否有从节点升级为leader

c1上执行

/var/local/server/zookeeper/bin/zkServer.sh stop

c2上查看状态

[root@cas ~]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Mode: follower

可以发现c2仍然为从节点

再看看c3

[root@localhost ~]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Mode: leader

此时c3升级为了主节点

再次启动c1,并查看状态

[root@sso conf]# /var/local/server/zookeeper/bin/zkServer.sh start
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@sso conf]#
[root@sso conf]# /var/local/server/zookeeper/bin/zkServer.sh status
JMX enabled by default
Using config: /var/local/server/zookeeper/bin/../conf/zoo.cfg
Mode: follower

发现c1作为了从节点。

相关实践学习
基于MSE实现微服务的全链路灰度
通过本场景的实验操作,您将了解并实现在线业务的微服务全链路灰度能力。
相关文章
|
10天前
|
JavaScript Java 测试技术
基于ssm+vue.js+uniapp小程序的高中信息技术课程在线测试系统附带文章和源代码部署视频讲解等
基于ssm+vue.js+uniapp小程序的高中信息技术课程在线测试系统附带文章和源代码部署视频讲解等
18 6
|
14天前
|
IDE 前端开发 时序数据库
【Docker项目实战】使用Docker部署speedtest-tracker速度测试追踪器
【6月更文挑战第4天】使用Docker部署speedtest-tracker速度测试追踪器
236 0
|
19天前
|
JavaScript Java 测试技术
基于SpringBoot+Vue+uniapp的在线测试管理系统的详细设计和实现(源码+lw+部署文档+讲解等)
基于SpringBoot+Vue+uniapp的在线测试管理系统的详细设计和实现(源码+lw+部署文档+讲解等)
272 0
|
22天前
|
分布式计算 API Spark
Spline部署&测试
Spline是Spark的元数据管理和血缘追踪工具,通过Docke部署。安装涉及下载docker-compose.yml和.env文件,使用`docker compose up -d`命令启动,包括rest-server(核心,处理血缘数据并存储在ArangoDB)、arangodb(多模型数据库)、ui(Web服务)等组件。测试中使用pyspark进行血缘捕获,通过spark-submit命令指定Spline相关依赖并连接到Spline服务器。成功后,血缘数据可在Spline UI中查看。未来计划在DolphinScheduler上测试Spark SQL任务并启用血缘追踪。
143 0
|
25天前
|
关系型数据库 MySQL 数据库
测试部署PolarDB-X 分布式与集中式
在本文中,作者详述了在CentOS 7.9上部署测试PolarDB-X分布式与集中式数据库的过程。PolarDB-X作为阿里云优化的分布式数据库,提供高稳定性和与MySQL的兼容性,是应对单体数据库扩展性和性能瓶颈的解决方案,同时也符合国产化需求。文章介绍了部署环境准备,包括关闭防火墙和SELinux,设置系统参数,安装Python3和Docker,以及配置MySQL客户端。接着,通过PXD工具部署了PolarDB-X的集中式和分布式版,遇到的问题包括阿里云镜像源异常导致的部署失败以及指定版本安装的困扰。最后,作者进行了初步的压力测试,并对文档完善、生态工具建设以及提供更多使用案例提出了建议。
47732 9
测试部署PolarDB-X 分布式与集中式
|
1月前
|
机器学习/深度学习 Shell C++
测试本地部署ChatGLM-6B | ChatGPT
ChatGLM-6B是款62亿参数的中英对话模型,类似ChatGPT,可在6GB显存(INT4量化)的GPU或CPU上运行。它提供流畅、多样的对话体验。用户可从Hugging Face或清华云下载模型配置。部署涉及创建Python环境,安装依赖,下载模型到`ckpt`文件夹。测试时加载tokenizer和模型,使用示例代码进行交互。应用包括基于MNN和JittorLLMs的推理实现,以及langchain-ChatGLM、闻达、chatgpt_academic和glm-bot等项目。5月更文挑战第10天
49 1
|
1月前
|
Ubuntu Linux 测试技术
Linux(32)Rockchip RK3568 Ubuntu22.04上部署 Docker: 详细配置与功能测试(下)
Linux(32)Rockchip RK3568 Ubuntu22.04上部署 Docker: 详细配置与功能测试
74 1
|
11天前
|
机器学习/深度学习 人工智能 自然语言处理
深入探索软件测试:策略、工具与未来趋势
【5月更文挑战第38天】 在软件开发的生命周期中,测试环节扮演着至关重要的角色。随着技术的不断进步和市场需求的多样化,传统的测试方法已逐渐不能满足现代软件项目的需求。本文旨在提供一个全面的软件测试概述,包括最新的测试策略、常用工具以及预测未来的发展趋势。通过分析自动化测试的效益、持续集成的重要性以及人工智能在测试中的应用,文章将帮助读者构建一个更高效、更智能的软件测试环境。
|
4天前
|
机器学习/深度学习 人工智能 jenkins
探索自动化测试工具的选择与应用
在软件开发生命周期中,软件测试是确保质量的重要环节。随着自动化技术的发展,自动化测试工具的选择和应用变得至关重要。这篇文章将深入探讨如何选择适合的自动化测试工具,并结合实例分析其实际应用效果,从而为开发团队提供有效的指导。
|
12天前
|
测试技术 持续交付
软件测试中的自动化工具及其应用
本文将探讨软件测试中自动化工具的特点、优势以及常见应用场景,重点介绍了自动化测试工具在提高测试效率、减少人力成本以及保证软件质量方面的重要作用。通过深入分析自动化测试工具的应用实例,帮助读者更好地理解和运用现代软件测试工具。
42 1

热门文章

最新文章