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https://issues.apache.org/jira/browse/SOLR-11702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16326166#comment-16326166
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Shalin Shekhar Mangar commented on SOLR-11702:
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I'm not sure that ZkShardTerms.refreshTerms behaves correctly on ZK Reconnect.
Say a watcher was set (numWatcher=1) but not fired and the zk client
disconnects. Then on re-connect, the OnReconnectListener in ZkController fires
which re-registers cores and calls refreshTerms again. Now watcher won't be
initialized in this method (because numWatcher=1) and therefore won't be set on
terms znode anymore. Can you please verify?
> Redesign current LIR implementation
> -----------------------------------
>
> Key: SOLR-11702
> URL: https://issues.apache.org/jira/browse/SOLR-11702
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Cao Manh Dat
> Assignee: Cao Manh Dat
> Priority: Major
> Attachments: SOLR-11702.patch, SOLR-11702.patch
>
>
> I recently looked into some problem related to racing between LIR and
> Recovering. I would like to propose a totally new approach to solve SOLR-5495
> problem because fixing current implementation by a bandage will lead us to
> other problems (we can not prove the correctness of the implementation).
> Feel free to give comments/thoughts about this new scheme.
> https://docs.google.com/document/d/1dM2GKMULsS45ZMuvtztVnM2m3fdUeRYNCyJorIIisEo/edit?usp=sharing
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