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https://issues.apache.org/jira/browse/SOLR-7134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14383719#comment-14383719
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Ramkumar Aiyengar commented on SOLR-7134:
-----------------------------------------
Mark, do you plan to merge this to branch_5x soon? I wanted to merge my commit
for SOLR-7291, which I still can, but will end up causing a few conflicts for
you when you merge -- hence wanted to check..
> Replication can still cause index corruption.
> ---------------------------------------------
>
> Key: SOLR-7134
> URL: https://issues.apache.org/jira/browse/SOLR-7134
> Project: Solr
> Issue Type: Bug
> Components: replication (java)
> Reporter: Mark Miller
> Assignee: Mark Miller
> Priority: Critical
> Fix For: Trunk, 5.1
>
> Attachments: SOLR-7134.patch, SOLR-7134.patch, SOLR-7134.patch,
> SOLR-7134.patch, SOLR-7134.patch
>
>
> While we have plugged most of these holes, there appears to be another that
> is fairly rare.
> I've seen it play out a couple ways in tests, but it looks like part of the
> problem is that even if we decide we need a file and download it, we don't
> care if we then cannot move it into place if it already exists.
> I'm working with a fix that does two things:
> * Fail a replication attempt if we cannot move a file into place because it
> already exists.
> * If a replication attempt during recovery fails, on the next attempt force a
> full replication to a new directory.
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