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https://issues.apache.org/jira/browse/HBASE-10647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13924324#comment-13924324
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stack commented on HBASE-10647:
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Thanks [~daviddengfb]
I took a look and we don't have this issue upstream.
> Fix the bug of not decrease from size in updateColumnValue when removing the
> old puts.
> --------------------------------------------------------------------------------------
>
> Key: HBASE-10647
> URL: https://issues.apache.org/jira/browse/HBASE-10647
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.89-fb
> Reporter: Yi Deng
> Priority: Critical
> Fix For: 0.89-fb
>
> Attachments:
> 0001-HBASE-10647-Fix-the-bug-of-not-decrease-from-size-in.patch
>
>
> In MemStore.updateColumnValue, when removing old values, size is not
> decreased, but local variable addedSize is decreased, so size is greater than
> real value. This leads to the problem of negative value for
> HRegion.memstoreSize.
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