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https://issues.apache.org/jira/browse/HBASE-9195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13740210#comment-13740210
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Jonathan Hsieh edited comment on HBASE-9195 at 8/14/13 9:22 PM:
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More details on why or how a lot of isFileClosed calls cause test
destabilization? Is does it timeout? is there a race?
TestShell is not on you. Can you check if the findbugs is? (do this before
and after the patch, verify the number is the same).
{code}
mvn findbugs:findbugs -DskipTests
grep -oh BugInstance hbase-*/target/findbugs.xml | wc -l
{code}
was (Author: jmhsieh):
More details on why or how a lot of isFileClosed calls cause test
destabilization? Is does it timeout? is there a race?
TestShell is not on you. Can you check if the findbugs is? (do this before
and after the patch, verify the number is the same).
{code}
mvn findbugs:findbugs
grep -oh BugInstance hbase-*/target/findbugs.xml | wc -l
{code}
> TestFSHDFSUtils is too aggressive
> ---------------------------------
>
> Key: HBASE-9195
> URL: https://issues.apache.org/jira/browse/HBASE-9195
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 0.95.1
> Reporter: Himanshu Vashishtha
> Priority: Minor
> Attachments: HBase-9195.patch, HBase-9195.patch
>
>
> The recoverLease test in this class sets hbase.lease.recovery.pause to 10ms.
> It causes that after every 10 ms, it calls isFileClosed (if it is available).
> Though the test takes only 3-4 sec, but it makes about 270 isFileClosed
> calls. This cause test to become somewhat flaky in our internal testing.
> The proposed fix is to just to increase the pause interval to 100 ms. This
> reduces the number of calls to about 30.
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