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https://issues.apache.org/jira/browse/ZOOKEEPER-2319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15178050#comment-15178050
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Rakesh R commented on ZOOKEEPER-2319:
-------------------------------------
Presently Listener thread will log WARNING message and exit on
{{ava.nio.channels.UnresolvedAddressException}}, which is not a subclass of
IOException. I also feel we could improve by catching this exception and
continue listening.
> UnresolvedAddressException cause the QuorumCnxManager.Listener exit
> -------------------------------------------------------------------
>
> Key: ZOOKEEPER-2319
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2319
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.4.6
> Reporter: Zhaohui Yu
> Priority: Critical
> Fix For: 3.4.9, 3.5.2, 3.6.0
>
>
> Given three nodes, the leader on 2, but some issue with this machine, so I
> shutdown this machine, and change the host name to another machine.
> Then I start the node in the new machine, but the new node can not join.
> I found the the 1 and 3's Listener thread exit.
> With the code of Listener's run method:
> I think we should catch UnresolvedAddressException to avoid the Listener exit.
> {noformat}
> @Override
> public void run() {
>
> while((!shutdown) && (numRetries < 3)){
> try {
> // bind and accept
> receiveConnection(client);
>
> } catch (IOException e) {
>
> }
> }
> //
> }
> {noformat}
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