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https://issues.apache.org/jira/browse/SOLR-3582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13402851#comment-13402851
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Trym Møller edited comment on SOLR-3582 at 6/28/12 5:12 AM:
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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. Are there other
things I can do, to show that the solution is the right one?
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 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
> 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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