Introduction to Zookeeper (1) Implementation of zookeeper Pseudo-cluster/pseudo-clustered deployment on single machine

The Zooker Introductory Tutorial series:

1-How to implement zookeeper pseudo cluster/pseudo clustered deployment on a single machine

2-Interpreting Zookeeper configuration items

-----This article is a basic tutorial for getting started, written for situations where you don't have the extra machines to try and try to deploy a fleet.

  

1. Download Decompression Zookeeper

(1) Download address: slightly

(2) Decompression: slightly

Note that you're going to build several zookeeper servers on your stand-alone machine, and you'll create a few directories and then unzip zookeeper in each directory.

2. A stand-alone pseudo-cluster with a scale of 3

(1) Server0

New Directory Data:/home/michael/opt/zookeeper/server0/zookeeper/data

New Directory Logs:/home/michael/opt/zookeeper/server0/zookeeper/logs

New File Myid:/home/michael/opt/zookeeper/server0/zookeeper/data/myid

The contents are as follows:

0

New File Zoo.cfg:/home/michael/opt/zookeeper/server0/zookeeper/conf/zoo.cfg

The contents are as follows:

ticktime=2000
initlimit=5
synclimit=2
datadir=/home/michael/opt/zookeeper/server0/zookeeper/data
datalogdir=/home/michael/opt/zookeeper/server0/zookeeper/logs
clientport=4180
server.0= 127.0.0.1:8880:7770
server.1=127.0.0.1:8881:7771
server.2=127.0.0.1:8882:7772

(2) Server1

New Directory Data:/home/michael/opt/zookeeper/server1/zookeeper/data

New Directory Logs:/home/michael/opt/zookeeper/server1/zookeeper/logs

New File Myid:/home/michael/opt/zookeeper/server1/zookeeper/data/myid

The contents are as follows:

1

New File Zoo.cfg:/home/michael/opt/zookeeper/server1/zookeeper/conf/zoo.cfg

The contents are as follows:

ticktime=2000
initlimit=5
synclimit=2
datadir=/home/michael/opt/zookeeper/server1/zookeeper/data
datalogdir=/home/michael/opt/zookeeper/server1/zookeeper/logs
clientport=4181
server.0= 127.0.0.1:8880:7770
server.1=127.0.0.1:8881:7771
server.2=127.0.0.1:8882:7772

(3) Server2

New Directory Data:/home/michael/opt/zookeeper/server2/zookeeper/data

New Directory Logs:/home/michael/opt/zookeeper/server2/zookeeper/logs

New File Myid:/home/michael/opt/zookeeper/server2/zookeeper/data/myid

The contents are as follows:

2

New File Zoo.cfg:/home/michael/opt/zookeeper/server2/zookeeper/conf/zoo.cfg

The contents are as follows:

ticktime=2000
initlimit=5
synclimit=2
datadir=/home/michael/opt/zookeeper/server2/zookeeper/data
datalogdir=/home/michael/opt/zookeeper/server2/zookeeper/logs
clientport=4182
server.0= 127.0.0.1:8880:7770
server.1=127.0.0.1:8881:7771
server.2=127.0.0.1:8882:7772

3. Start all servers of the zookeeper pseudo-cluster

Start the service by entering the/zookeeper/bin directory of three servers, respectively.

./zkserver.sh Start

4. Access client

Enter the Zookeeper/bin directory of any server, start a client, access the service.

./zkcli.sh–server 127.0.0.1:4181

Related commands, which can be viewed by entering help.

Help

My demo diagram on this computer looks like this: