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https://issues.apache.org/jira/browse/HBASE-15837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15303177#comment-15303177
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Hudson commented on HBASE-15837:
--------------------------------
SUCCESS: Integrated in HBase-1.1-JDK8 #1809 (See
[https://builds.apache.org/job/HBase-1.1-JDK8/1809/])
HBASE-15837 Memstore size accounting is wrong if postBatchMutate() (enis: rev
fd818514c7f663e673febb016a774790b0b2e457)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
> Memstore size accounting is wrong if postBatchMutate() throws exception
> -----------------------------------------------------------------------
>
> Key: HBASE-15837
> URL: https://issues.apache.org/jira/browse/HBASE-15837
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Josh Elser
> Assignee: Josh Elser
> Fix For: 2.0.0, 1.3.0, 1.2.2, 0.98.20, 1.1.6
>
> Attachments: HBASE-15837.001.patch, hbase-15837-v1.patch,
> hbase-15837.branch-1.patch, hbase-memstore-size-accounting.patch
>
>
> Over in PHOENIX-2883, I've been trying to figure out how to track down the
> root cause of an issue we were seeing where a negative memstoreSize was
> ultimately causing an RS to abort. The tl;dr version is
> * Something causes memstoreSize to be negative (not sure what is doing this
> yet)
> * All subsequent flushes short-circuit and don't run because they think there
> is no data to flush
> * The region is eventually closed (commonly, for a move).
> * A final flush is attempted on each store before closing (which also
> short-circuit for the same reason), leaving unflushed data in each store.
> * The sanity check that each store's size is zero fails and the RS aborts.
> I have a little patch which I think should improve our failure case around
> this, preventing the RS abort safely (forcing a flush when memstoreSize is
> negative) and logging a calltrace when an update to memstoreSize make it
> negative (to find culprits in the future).
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