[jira] Commented: (HBASE-1784) Missing rows after medium intensity insert

["Jonathan Gray (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-1784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12746983#action_12746983 ] 

Jonathan Gray commented on HBASE-1784:
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Current thinking is that this is caused by failed compaction(s).  Mathias is turning on DEBUG and running smaller jobs, increasing load each run, until it triggers missing rows.

> 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
>         Attachments: DataLoad.java
>
>
> 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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