autopurge.purgeInternal=20
autopurge.snapRetainCount=5
这两个参数在生产环境下尤其重要!
从3.4.0开始,zookeeper提供了自动清理snapshot和事务日志的功能,通过配置 autopurge.snapRetainCount 和 autopurge.purgeInterval 这两个参数能够实现定时清理了。这两个参数都是在zoo.cfg中配置的:
autopurge.purgeInterval 这个参数指定了清理频率,
单位是小时,需要填写一个1或更大的整数,默认是0,表示不开启自己清理功能。
autopurge.snapRetainCount 这个参数和上面的参数搭配使用,这个参数指定了需要保留的文件数目。默认是保留3个。
常用的三个命令:conf\stat\ruok
[root@***conf]# echo conf | nc 127.0.0.1 2181
clientPort=2181
dataDir=/usr/local/zookeeper/data/version-2
dataLogDir=/usr/local/zookeeper/data/version-2
tickTime=2000
maxClientCnxns=60
minSessionTimeout=4000
maxSessionTimeout=40000
serverId=1
initLimit=10
syncLimit=5
electionAlg=3
electionPort=3888
quorumPort=2888
peerType=0
[root@** conf]# echo ruok | nc 127.0.0.1 2181
imok
[root@** conf]# echo stat | nc 127.0.0.1 2181
Zookeeper version: 3.4.6-1569965, built on 02/20/2014 09:09 GMT
Clients: /127.0.0.1:25284[0](queued=0,recved=1,sent=0)
Latency min/avg/max: -1184/0/983
Received: 139014121
Sent: 139014125
Connections: 1
Outstanding: 0
Zxid: 0x800000238
Mode: follower
Node count: 13265
[root@mail ~]# which nc
/usr/bin/which: no nc in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/data/mysql/bin:/usr/local/java/bin:/root/bin)
[root@mail ~]# yum whatprovides /usr/bin/nc
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirrors.sina.cn
* extras: mirrors.sina.cn
* updates: mirrors.tuna.tsinghua.edu.cn
base | 3.7 kB 00:00
base/primary_db | 4.7 MB 00:01
erlang-solutions | 951 B 00:00
extras | 3.4 kB 00:00
extras/primary_db | 36 kB 00:00
updates | 3.4 kB 00:00
updates/primary_db | 726 kB 00:01
nc-1.84-24.el6.x86_64 : Reads and writes data across network connections using TCP or UDP
Repo : base
Matched from:
Filename : /usr/bin/nc
或
rpm -qf /usr/bin/nc ##也可也查出nc命令来自于哪个rpm包!
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