Getting started with zookeeper (2): getting started with zookeeper

Getting started with zookeeper (2): getting started with zookeeper

Install zookeeper

Standalone Mode

Download zookeeper-3.4.8.tar.gz

Create/usr/zookeeper and decompress it to the zookeeper directory.

[Root @ localhost zookeeper] # tar-zxvf zookeeper-3.4.8.tar.gz

Configure Environment Variables:

To facilitate future operations, we need to configure the Zookeeper environment variables by adding the following content to the/etc/profile file:

[Root @ localhost liutie] # vi/etc/profile

# Set java environment
JAVA_HOME =/usr/java/jdk1.8.0 _ 131
JRE_HOME =/usr/java/jdk1.8.0 _ 131/jre
ZOOKEEPER_HOME =/usr/zookpeer/zookpeer-3.4.8
CLASS_PATH =.: $ JAVA_HOME/lib/dt. jar: $ JAVA_HOME/lib/tools. jar: $ JRE_HOME/lib
PATH = $ PATH: $ JAVA_HOME/bin: $ JRE_HOME/bin: ZOOKEEPER_HOME/bin

Make environment variables take effect

[Root @ localhost liutie] # source/etc/profile

Go to the bin directory of the zookeeper folder and change zoo_simple.cfg to zoo. cfg.

[Root @ localhost conf] # mv zoo_sample.cfg zoo. cfg

Modify zoo. cfg

[Root @ localhost conf] # vi zoo. cfg

# The number of milliseconds of each tick  tickTime=2000  # The number of ticks that the initial   # synchronization phase can take  initLimit=10  # The number of ticks that can pass between   # sending a request and getting an acknowledgement  syncLimit=5  # the directory where the snapshot is stored.  # do not use /tmp for storage, /tmp here is just   # example sakes.  dataDir=/tmp/zookeeper  # the port at which the clients will connect  clientPort=2181  #  # Be sure to read the maintenance section of the   # administrator guide before turning on autopurge.  #  # http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance  #  # The number of snapshots to retain in dataDir  #autopurge.snapRetainCount=3  # Purge task interval in hours  # Set to "0" to disable auto purge feature  #autopurge.purgeInterval=1 

Save and enter the bin directory to start the server.

[Root @ localhost bin] #./zkServer. sh start

ZooKeeper JMX enabled by default
Using config:/usr/zookeeper/zookeeper-3.4.8/bin/../conf/zoo. cfg
Starting zookeeper... already running as process 9176.