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https://issues.apache.org/jira/browse/HBASE-6796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13489221#comment-13489221
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Ted Yu edited comment on HBASE-6796 at 11/2/12 3:37 AM:
--------------------------------------------------------
I tried to reproduce the test failure in TestHFileCleaner#testHFileCleaning but
was not successful.
I looked at the test output:
https://builds.apache.org/view/G-L/view/HBase/job/HBase-0.94/566/testReport/org.apache.hadoop.hbase.master.cleaner/TestHFileCleaner/testHFileCleaning/
{code}
2012-11-02 01:29:55,534 INFO [pool-1-thread-1] hbase.ResourceChecker(145):
before master.cleaner.TestHFileCleaner#testTTLCleaner: 43 threads, 127 file
descriptors 0 connections,
2012-11-02 01:29:55,898 DEBUG [pool-1-thread-1]
cleaner.TimeToLiveHFileCleaner(68): Life:108, ttl:100, current:1351819795897,
from: 1351819795789
2012-11-02 01:29:55,900 INFO [pool-1-thread-1] hbase.ResourceChecker(145):
after master.cleaner.TestHFileCleaner#testTTLCleaner: 44 threads (was 43), 127
file descriptors (was 127). 0 connections, -thread leak?-
{code}
We can see that one thread didn't exit.
Still, it is not very obvious which thread hung :-(
was (Author: [email protected]):
I tried to reproduce the test failure in TestHFileCleaner#testHFileCleaning
but was not successful.
I looked at the test output:
https://builds.apache.org/view/G-L/view/HBase/job/HBase-0.94/566/testReport/org.apache.hadoop.hbase.master.cleaner/TestHFileCleaner/testHFileCleaning/
{code}
2012-11-02 01:29:57,917 INFO [pool-1-thread-1] hbase.ResourceChecker(145):
before master.cleaner.TestHFileCleaner#testRemovesEmptyDirectories: 45 threads,
127 file descriptors 0 connections,
...
2012-11-02 01:29:58,730 INFO [pool-1-thread-1] hbase.ResourceChecker(145):
after master.cleaner.TestHFileCleaner#testRemovesEmptyDirectories: 44 threads
(was 45), 127 file descriptors (was 127). 0 connections,
{code}
We can see that one thread didn't exit.
I checked test output on MacBook. The thread count in both occasions was the
same.
Still, it is not very obvious which thread hung :-(
> Backport HBASE-5547, Don't delete HFiles in backup mode.
> --------------------------------------------------------
>
> Key: HBASE-6796
> URL: https://issues.apache.org/jira/browse/HBASE-6796
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Assignee: Jesse Yates
> Fix For: 0.94.3
>
> Attachments: hbase-5547-0.94-backport-v0.patch, hbase-6796-v0.patch,
> hbase-6796-v1.patch, hbase-6796-v2.patch
>
>
> See HBASE-5547
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