一、Zookeeper單體版安裝
在安裝zookeeper之前要先安裝jdk環境,具體在linux環境安裝jdk1.8請參照linux筆記。
1.在/usr/local/zoo 文件夾下執行命令 wget http://apache.fayea.com/zookeeper/zookeeper-3.5.5/apache-zookeeper-3.5.5-bin.tar.gz 下載zookeeper壓縮包,並執行tar -zxvf 進行解壓。
2.初次使用zookeeper需要將conf文件夾下的zoo_sample.cfg修改爲zoo.cfg。
zoo.cfg 文件內容
# 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=/tomcathxw/zookeeper/apache-zookeeper-3.5.5-bin/data
dataLogDir=/tomcathxw/zookeeper/apache-zookeeper-3.5.5-bin/logs
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# 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
3.在zookeeper安裝目錄下建立一個文件夾data。
4.修改zoo.cfg文件中的dataDir爲data的路徑,保存退出。
5.啓動zookeeper,zkServer.sh.
(遇到的問題,在bin目錄下執行zkServer.sh start提示我命令不存在???
原因是zookeeper沒有配置環境變量,可以選擇配置環境變量或者使用命令./zkServer.sh start)
(修改之後。。。。命令好使了,但是啓動失敗,連原因都沒有,查看zookeeper目錄下的logs發現報錯:Error: Could not find or load main class org.apache.zookeeper.server.quorum.QuorumPeerMain
) 這裏注意一個大坑:
在zookeeper3.5.5版本中,官網下載有兩個文件:
要選擇第一個壓縮包下載,第二個壓縮包是源碼包,第一個壓縮包下載後按照正常步驟就可以運行起來,太坑了。
要選擇第一個壓縮包下載,第二個壓縮包是源碼包,第一個壓縮包下載後按照正常步驟就可以運行起來,太坑了。