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https://issues.apache.org/jira/browse/HBASE-1784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12749718#action_12749718
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stack commented on HBASE-1784:
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@Mathias Have you upped hbase.client.scanner.caching in hbase-site.xml?
> Missing rows after medium intensity insert
> ------------------------------------------
>
> Key: HBASE-1784
> URL: https://issues.apache.org/jira/browse/HBASE-1784
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.20.0
> Reporter: Jean-Daniel Cryans
> Priority: Blocker
> Fix For: 0.20.0
>
> Attachments: 1784.patch, DataLoad.java, dbl-assignment-20090831,
> double-assignment, HBASE-1784-StoreFileScanner-hack.patch, HBASE-1784.log,
> META.log, processSplitRegion-check-regionIsOpening.patch
>
>
> This bug was uncovered by Mathias in his mail "Issue on data load with
> 0.20.0-rc2". Basically, somehow, after a medium intensity insert a lot of
> rows goes missing. Easy way to reproduce : PE. Doing a PE scan or randomRead
> afterwards won't uncover anything since it doesn't bother about null rows.
> Simply do a count in the shell, easy to test (I changed my scanner caching in
> the shell to do it faster).
> I tested some light insertions with force flush/compact/split in the shell
> and it doesn't break.
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