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https://issues.apache.org/jira/browse/HBASE-3613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13005483#comment-13005483
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stack commented on HBASE-3613:
------------------------------
Did you swap the content of the 'if' test? You put bestAnyRegion on RHS in
your version when its on LHS in what you replace.
See below:
{code}
- if (bestAnyRegion.memstoreSize.get() > 2 *
bestFlushableRegion.memstoreSize.get()) {
+ HRegion regionToFlush = bestAnyRegion;
+ // UNLESS.... bestFlushableRegion is twice as large as bestAnyRegion.
+ if (bestFlushableRegion != null &&
+ 2 * bestFlushableRegion.memstoreSize.get() >
bestAnyRegion.memstoreSize.get()) {
{code}
> NPE in MemStoreFlusher
> ----------------------
>
> Key: HBASE-3613
> URL: https://issues.apache.org/jira/browse/HBASE-3613
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.1
> Reporter: ryan rawson
> Fix For: 0.90.2
>
> Attachments: HBASE-3613.txt
>
>
> every now and again in a 0.90.1-2 load run I get a NPE on this line:
> if (bestAnyRegion.memstoreSize.get() > 2 *
> bestFlushableRegion.memstoreSize.get()) {
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