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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-17400) TestHRegion#testWritesWhileScanning occasionally hangs in MVCC#.waitForRead()
Date Sun, 01 Jan 2017 02:43:58 GMT
Ted Yu created HBASE-17400:
------------------------------

             Summary: TestHRegion#testWritesWhileScanning occasionally hangs in MVCC#.waitForRead()
                 Key: HBASE-17400
                 URL: https://issues.apache.org/jira/browse/HBASE-17400
             Project: HBase
          Issue Type: Bug
            Reporter: Ted Yu


Looping TestHRegionWithInMemoryFlush with commit 0e48665641b16cd9b250503696b926a568063654
, I got the following error at iteration #33:
{code}
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 600.163 sec <<< FAILURE!
- in org.apache.hadoop.hbase.regionserver.TestHRegionWithInMemoryFlush
org.apache.hadoop.hbase.regionserver.TestHRegionWithInMemoryFlush  Time elapsed: 600.019 sec
 <<< ERROR!
org.junit.runners.model.TestTimedOutException: test timed out after 10 minutes
  at java.lang.Object.wait(Native Method)
  at org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl.waitForRead(MultiVersionConcurrencyControl.java:218)
  at org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl.completeAndWait(MultiVersionConcurrencyControl.java:149)
  at org.apache.hadoop.hbase.regionserver.HRegion.getNextSequenceId(HRegion.java:2731)
  at org.apache.hadoop.hbase.regionserver.HRegion.internalPrepareFlushCache(HRegion.java:2446)
  at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2342)
  at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2313)
  at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2303)
  at org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1600)
  at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1505)
  at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1455)
  at org.apache.hadoop.hbase.HBaseTestingUtility.closeRegionAndWAL(HBaseTestingUtility.java:374)
  at org.apache.hadoop.hbase.regionserver.TestHRegion.testWritesWhileScanning(TestHRegion.java:3985)
{code}
See attached test output for details.



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