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https://issues.apache.org/jira/browse/HADOOP-6640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852301#action_12852301
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Hadoop QA commented on HADOOP-6640:
-----------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12440376/getFS.patch
against trunk revision 927979.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/438/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/438/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/438/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/438/console
This message is automatically generated.
> FileSystem.get() does RPC retries within a static synchronized block
> --------------------------------------------------------------------
>
> Key: HADOOP-6640
> URL: https://issues.apache.org/jira/browse/HADOOP-6640
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Environment: all
> Reporter: Alejandro Abdelnur
> Assignee: Hairong Kuang
> Priority: Critical
> Attachments: getFS.patch
>
>
> If using FileSystem.get() in a multithreaded environment, and one get() locks
> because the NN URI is too slow or not responding and retries are in progress,
> all other get() (for the diffferent users, NN) are blocked.
> the synchronized block in in the static instance of Cache inner class.
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