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https://issues.apache.org/jira/browse/HBASE-26429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17441471#comment-17441471
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Hudson commented on HBASE-26429:
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Results for branch branch-2.4
[build #235 on
builds.a.o|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/branch-2.4/235/]:
(x) *{color:red}-1 overall{color}*
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-- See build output for details.
(/) {color:green}+1 client integration test{color}
> HeapMemoryManager fails memstore flushes with NPE if enabled
> ------------------------------------------------------------
>
> Key: HBASE-26429
> URL: https://issues.apache.org/jira/browse/HBASE-26429
> Project: HBase
> Issue Type: Bug
> Components: Operability, regionserver
> Affects Versions: 2.4.8
> Reporter: Andrew Kyle Purtell
> Assignee: Andrew Kyle Purtell
> Priority: Major
> Fix For: 2.5.0, 3.0.0-alpha-2, 2.3.8, 2.4.9
>
>
> Nonstandard configuration under test:
> {quote}
> <property>
> <name>hfile.block.cache.size.min.range</name>
> <value>0.1</value>
> </property>
> <property>
> <name>hfile.block.cache.size.max.range</name>
> <value>0.5</value>
> </property>
> <property>
> <name>hbase.regionserver.global.memstore.size.min.range</name>
> <value>0.2</value>
> </property>
> <property>
> <name>hbase.regionserver.global.memstore.size.max.range</name>
> <value>0.7</value>
> </property>
> {quote}
> The NPE:
> {noformat}
> 2021-11-05 21:52:13,828 ERROR [MemStoreFlusher.1]
> regionserver.MemStoreFlusher: Cache flusher failed for entry [flush region
> IntegrationTestLoadCommonCrawl,com.yeqingteng.www//gysy/28,1636143958130.4be7e8d968cc73cf729cb4713328f729.]
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HeapMemoryManager$HeapMemoryTunerChore.flushRequested(HeapMemoryManager.java:402)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.notifyFlushRequest(MemStoreFlusher.java:661)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:616)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:586)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$1000(MemStoreFlusher.java:68)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:360)
> {noformat}
> The reason for the NPE is obvious in MemStoreFlusher.java.
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