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https://issues.apache.org/jira/browse/HBASE-21482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16689903#comment-16689903
]
Ted Yu commented on HBASE-21482:
Toward the end of
hbase-server/target/surefire-reports/org.apache.hadoop.hbase.regionserver.TestHRegion-output.txt
branch-2 :
{code}
2018-11-15 19:05:42,036 INFO [Time-limited test] hbase.ResourceChecker(172):
after: regionserver.TestHRegion#testCheckAndDelete_ThatDeleteWasWritten
Thread=85 (was 85), OpenFileDescriptor=1276 (was 1273) - OpenFileDescriptor
LEAK? -, MaxFileDescriptor=32000 (was 32000), SystemLoadAverage=149 (was 149),
ProcessCount=361 (was 361), AvailableMemoryMB=36487 (was 36488)
{code}
master branch:
{code}
2018-11-16 19:06:59,290 INFO [Time-limited test] hbase.ResourceChecker(172):
after: regionserver.TestHRegion#testCheckAndDelete_ThatDeleteWasWritten
Thread=79 (was 78) - Thread LEAK? -, OpenFileDescriptor=31932 (was 31934),
MaxFileDescriptor=32000 (was 32000), SystemLoadAverage=82 (was 82),
ProcessCount=363 (was 363), AvailableMemoryMB=36785 (was 36784) -
AvailableMemoryMB LEAK? -
2018-11-16 19:06:59,290 WARN [Time-limited test] hbase.ResourceChecker(135):
OpenFileDescriptor=31932 is superior to 1024
{code}
> TestHRegion fails due to 'Too many open files'
> --
>
> Key: HBASE-21482
> URL: https://issues.apache.org/jira/browse/HBASE-21482
> Project: HBase
> Issue Type: Bug
>Reporter: Ted Yu
>Priority: Major
> Attachments:
> org.apache.hadoop.hbase.regionserver.TestHRegion-output.txt,
> org.apache.hadoop.hbase.regionserver.TestHRegion.txt
>
>
> TestHRegion fails due to 'Too many open files' in master branch.
> Here is one failed subtest :
> {code}
> testCheckAndDelete_ThatDeleteWasWritten(org.apache.hadoop.hbase.regionserver.TestHRegion)
> Time elapsed: 2.373 sec <<< ERROR!
> java.lang.IllegalStateException: failed to create a child event loop
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4853)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4844)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4835)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.testCheckAndDelete_ThatDeleteWasWritten(TestHRegion.java:2034)
> Caused by: org.apache.hbase.thirdparty.io.netty.channel.ChannelException:
> failed to open a new selector
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4853)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4844)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4835)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.testCheckAndDelete_ThatDeleteWasWritten(TestHRegion.java:2034)
> Caused by: java.io.IOException: Too many open files
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4853)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4844)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.initHRegion(TestHRegion.java:4835)
> at
> org.apache.hadoop.hbase.regionserver.TestHRegion.testCheckAndDelete_ThatDeleteWasWritten(TestHRegion.java:2034)
> {code}
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