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Posted to dev@zookeeper.apache.org by "ken huang (JIRA)" <ji...@apache.org> on 2017/10/18 07:44:00 UTC
[jira] [Commented] (ZOOKEEPER-2910) zookeeper listening on unknown
random port
[ https://issues.apache.org/jira/browse/ZOOKEEPER-2910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16208934#comment-16208934 ]
ken huang commented on ZOOKEEPER-2910:
--------------------------------------
thx for your reply. It seems ok in your situation.
But i ran 3.4.8/jdk8 on CentOS 7.1 and see the following:
{{
[root@zk146 ~]# netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:55667 0.0.0.0:* LISTEN 1187/sshd
tcp6 0 0 172.17.156.146:2181 :::* LISTEN 29322/java
tcp6 0 0 172.17.156.146:9003 :::* LISTEN 8807/java
tcp6 0 0 172.17.156.146:3888 :::* LISTEN 29322/java
tcp6 0 0 :::55667 :::* LISTEN 1187/sshd
tcp6 0 0 :::34006 :::* LISTEN 29322/java
[root@zk146 ~]#
}}
my config is:
{{server.148=zk148:2888:3888
server.146=zk146:2888:3888
server.147=zk147:2888:3888
}}
my zookeeper process id is 29322, and there's a 34006 port listened on.
> zookeeper listening on unknown random port
> ------------------------------------------
>
> Key: ZOOKEEPER-2910
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2910
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.4.8
> Environment: CentOS 7
> Zookeeper 3.4.8
> JDK 1.8.0_111
> Reporter: ken huang
> Assignee: Patrick Hunt
>
> when zookeeper start, it will listen on three port:
> 2181 for client connnect
> 3888 for leader election
> random for what ?
> three are three port config in zoo.cfg, 2181、2888、3888, but no 2888 listened on.
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