1. 程式人生 > >記錄一次zookeeper叢集搭建遇到的問題

記錄一次zookeeper叢集搭建遇到的問題

使用VMware+centos7,clone了3臺虛機,然後分別裝上zookeeper。zoo.cfg配置檔案如下:

# 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
# 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
server.1=192.168.131.128:2188:3181
server.2=192.168.131.131:2188:3181
server.3=192.168.131.132:2188:3181

這裡有三個埠,一個是clientPort,一個是IP後面的第一個埠:第二個埠。因為我配置的埠衝突了,導致zookeeper一直啟動不了。

簡單瞭解一下各個埠的作用。

server.A=B:C:D。其中A表示是第幾臺伺服器。對應的是myid檔案中的配置。dataDir目錄下必須有一個myid檔案,裡面儲存A的值。zk啟動時讀取此檔案,與下面列表比較是哪個server

B是伺服器IP;C表示與Leader伺服器交換資訊的埠;D表示進行選舉的通訊埠。

因為我配置的clientPort和C一樣,所以埠衝突,導致服務起不了。

再此記錄一下,一面以後自己忘記。