Enis Soztutar created HBASE-14968:
-------------------------------------
Summary: ConcurrentModificationException in region close resulting
in the region staying in closing state
Key: HBASE-14968
URL: https://issues.apache.org/jira/browse/HBASE-14968
Project: HBase
Issue Type: Bug
Reporter: Enis Soztutar
Assignee: Enis Soztutar
Fix For: 2.0.0, 1.2.0, 1.3.0
We have seen this in our tests. The region gets closed, but the region close
handler gets an unexpected exception causing the region to stay in closing
state until RS is restarted.
The Phoenix and security coprocessors were loaded in that region. Here is the
stack trace:
{code}
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
at java.util.ArrayList$Itr.next(ArrayList.java:851)
at
org.apache.hadoop.hbase.coprocessor.CoprocessorHost$Environment.shutdown(CoprocessorHost.java:442)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionEnvironment.shutdown(RegionCoprocessorHost.java:155)
at
org.apache.hadoop.hbase.coprocessor.CoprocessorHost.shutdown(CoprocessorHost.java:272)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$5.postEnvCall(RegionCoprocessorHost.java:496)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1761)
at
org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postClose(RegionCoprocessorHost.java:489)
at
org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1502)
at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1349)
at
org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:138)
at
org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:128)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{code}
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