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Posted to dev@lucene.apache.org by "Trym Møller (JIRA)" <ji...@apache.org> on 2012/06/28 07:11:44 UTC
[jira] [Comment Edited] (SOLR-3582) Leader election zookeeper
watcher is responding to con/discon notifications incorrectly.
[ https://issues.apache.org/jira/browse/SOLR-3582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13402851#comment-13402851 ]
Trym Møller edited comment on SOLR-3582 at 6/28/12 5:10 AM:
------------------------------------------------------------
Debugging the provided test shows this behaviour as well, that is, the Watch is kept even though, its notified about disConnection and syncConnection and the Watch will first "stop" after it has been notified about a node change.
As Mark writes on the mailing list, there might be other ZooKeeper Watchers in Solr which might add new watchers on reconnect.
If we agree about the ZooKeeper watcher behaviour, then I think that the provided bug fix solves the problem in the LeaderElector and it can be committed to svn independently of problems with other watchers.
Best regards Trym
was (Author: trym):
Debugging the provided test shows this behaviour as well, that is, the Watch is kept even though, its notified about disConnection and syncConnection and the Watch will first "stop" after a node change occurs.
As Mark writes on the mailing list, there might be other ZooKeeper Watchers in Solr which might add new watchers on reconnect.
If we agree about the ZooKeeper watcher behaviour, then I think that the provided bug fix solves the problem in the LeaderElector and it can be committed to svn independently of problems with other watchers.
Best regards Trym
> Leader election zookeeper watcher is responding to con/discon notifications incorrectly.
> ----------------------------------------------------------------------------------------
>
> Key: SOLR-3582
> URL: https://issues.apache.org/jira/browse/SOLR-3582
> Project: Solr
> Issue Type: Bug
> Reporter: Mark Miller
> Assignee: Mark Miller
> Priority: Minor
> Fix For: 4.0, 5.0
>
>
> As brought up by Trym R. Møller on the mailing list, we are responding to watcher events about connection/disconnection as if they were notifications about node changes.
> http://www.lucidimagination.com/search/document/e13ef390b88eeee2
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