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=/home/myuser/zooA/data # the port at which the clients will connect clientPort=2181 # ZooKeeper server and its port no. # ZooKeeper ensemble should know about every other machine in the ensemble # specify server id by creating 'myid' file in the dataDir # use hostname instead of IP address for convenient maintenance server.1=127.0.0.1:2888:3888 server.2=127.0.0.1:2988:3988 server.3=127.0.0.1:2088:3088 # # 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 dataLogDir=/home/myuser/zooA/log
tickTime:心跳時間,為了確保連接存在的,以毫秒為單位,最小超時時間為兩個心跳時間
initLimit:多少個心跳時間內,允許其他server連接並初始化數據,如果ZooKeeper管理的數據較大,則應相應增大這個值
clientPort:服務的監聽端口
dataDir:用於存放內存數據庫快照的文件夾,同時用於集群的myid文件也存在這個文件夾里(注意:一個配置文件只能包含一個dataDir字樣,即使它被注釋掉了。)
dataLogDir:用於單獨設置transaction log的目錄,transaction log分離可以避免和普通log還有快照的競爭
syncLimit:多少個tickTime內,允許follower同步,如果follower落后太多,則會被丟棄。
server.A=B:C:D:
A是一個數字,表示這個是第幾號服務器,B是這個服務器的ip地址
C第一個端口用來集群成員的信息交換,表示的是這個服務器與集群中的Leader服務器交換信息的端口
D是在leader掛掉時專門用來進行選舉leader所用
A是一個數字,表示這個是第幾號服務器,B是這個服務器的ip地址
C第一個端口用來集群成員的信息交換,表示的是這個服務器與集群中的Leader服務器交換信息的端口
D是在leader掛掉時專門用來進行選舉leader所用