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Posted to dev@lucene.apache.org by "Mano Kovacs (JIRA)" <ji...@apache.org> on 2018/07/06 08:39:00 UTC
[jira] [Resolved] (SOLR-11417) Crashed leader's hanging emphemral
will make restarting followers stuck in recovering
[ https://issues.apache.org/jira/browse/SOLR-11417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mano Kovacs resolved SOLR-11417.
--------------------------------
Resolution: Fixed
Fixed by SOLR-12011
> Crashed leader's hanging emphemral will make restarting followers stuck in recovering
> -------------------------------------------------------------------------------------
>
> Key: SOLR-11417
> URL: https://issues.apache.org/jira/browse/SOLR-11417
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Affects Versions: 6.3
> Reporter: Mano Kovacs
> Priority: Major
> Attachments: SOLR-11417.png
>
>
> If replicas are starting up after leader crash and within the ZK session timeout, replicas
> * will lose leader election due to hanging ephemerals
> * will read stale data from ZK about current leader
> * will fail recovery and stuck in recovering state
> If leader is down permanently (eg. hardware failure) and all replicas are affected, shard will not come up (see also SOLR-7065).
> Tested on 6.3. See attached image for details.
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