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https://issues.apache.org/jira/browse/ZOOKEEPER-2910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16213383#comment-16213383
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Patrick Hunt commented on ZOOKEEPER-2910:
-----------------------------------------
I have three servers in the ensemble running on the single machine (17/18/19).
The client ports are 2181/2182/2183 respectively. The quorum/election ports are
similarly configured. I used configs generated from
https://github.com/phunt/zkconf - perhaps the way you are starting the services
is different. I'd recommend looking at the command lines used to start the java
process. Perhaps you do a bit of analysis to find out which thread in the JVM
is using that port, etc....
> 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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