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https://issues.apache.org/jira/browse/SOLR-6969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14286892#comment-14286892
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Mark Miller commented on SOLR-6969:
-----------------------------------
You can't have two Solr severs trying to access the same files when configured
properly. The index lock will prevent this before you get to tlog files.
I do think a long term / full solution requires some discussion with some hdfs
guys. I talked to Colin a little about it today. Sounds like it's kind of an
ugly situation.
> Just like we have to retry when the NameNode is in safemode on Solr startup,
> we also need to retry when opening a transaction log file for append when we
> get a RecoveryInProgressException.
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-6969
> URL: https://issues.apache.org/jira/browse/SOLR-6969
> Project: Solr
> Issue Type: Bug
> Components: hdfs
> Reporter: Mark Miller
> Assignee: Mark Miller
> Priority: Critical
> Fix For: 5.0, Trunk
>
>
> This can happen after a hard crash and restart. The current workaround is to
> stop and wait it out and start again. We should retry and wait a given amount
> of time as we do when we detect safe mode though.
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