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https://issues.apache.org/jira/browse/SOLR-14278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17048007#comment-17048007
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Yonik Seeley commented on SOLR-14278:
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I'm going to keep this issue open since I looped this test for another couple
days and I do see a occasional failure of missing documents.
The failures happen only a few times a day on average... about .5% of the runs
I think.
> data loss during live shard split if leader dies
> ------------------------------------------------
>
> Key: SOLR-14278
> URL: https://issues.apache.org/jira/browse/SOLR-14278
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Yonik Seeley
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> While trying to develop better tests for shared storage (SOLR-13101), I ran
> across another failure for normal replica types as well (one of the first
> things I do when a test fails for shared storage is to try and validate that
> normal NRT replicas succeed.) The PR I'll open has a test adapted from the
> one in SOLR-13813 for master.
> Scenario:
> - indexing is happening during shard split
> - leader is killed shortly after (before the split has finished) and never
> brought back up
> - there are often some missing documents at the end
> While it's possible that the simulated killing of the node in the unit test
> is imperfect, I haven't reproduced a failure if I comment out the split
> command and just kill the leader.
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