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Hadoop QA commented on YARN-1771: --------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12633247/yarn-1771.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 1 new or modified test files. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:red}-1 javadoc{color}. The javadoc tool appears to have generated 2 warning messages. See https://builds.apache.org/job/PreCommit-YARN-Build/3282//artifact/trunk/patchprocess/diffJavadocWarnings.txt for details. {color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 core tests{color}. The patch passed unit tests in hadoop-common-project/hadoop-common hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager. {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-YARN-Build/3282//testReport/ Console output: https://builds.apache.org/job/PreCommit-YARN-Build/3282//console This message is automatically generated. > many getFileStatus calls made from node manager for localizing a public > distributed cache resource > -------------------------------------------------------------------------------------------------- > > Key: YARN-1771 > URL: https://issues.apache.org/jira/browse/YARN-1771 > Project: Hadoop YARN > Issue Type: Bug > Components: nodemanager > Affects Versions: 2.3.0 > Reporter: Sangjin Lee > Assignee: Sangjin Lee > Priority: Critical > Attachments: yarn-1771.patch > > > We're observing that the getFileStatus calls are putting a fair amount of > load on the name node as part of checking the public-ness for localizing a > resource that belong in the public cache. > We see 7 getFileStatus calls made for each of these resource. We should look > into reducing the number of calls to the name node. One example: > {noformat} > 2014-02-27 18:07:27,351 INFO audit: ... cmd=getfileinfo > src=/tmp/temp-887708724/tmp883330348/foo-0.0.44.jar ... > 2014-02-27 18:07:27,352 INFO audit: ... cmd=getfileinfo > src=/tmp/temp-887708724/tmp883330348/foo-0.0.44.jar ... > 2014-02-27 18:07:27,352 INFO audit: ... cmd=getfileinfo > src=/tmp/temp-887708724/tmp883330348 ... > 2014-02-27 18:07:27,353 INFO audit: ... cmd=getfileinfo > src=/tmp/temp-887708724 ... > 2014-02-27 18:07:27,353 INFO audit: ... cmd=getfileinfo src=/tmp ... > 2014-02-27 18:07:27,354 INFO audit: ... cmd=getfileinfo src=/ ... > 2014-02-27 18:07:27,354 INFO audit: ... cmd=getfileinfo > src=/tmp/temp-887708724/tmp883330348/foo-0.0.44.jar ... > 2014-02-27 18:07:27,355 INFO audit: ... cmd=open > src=/tmp/temp-887708724/tmp883330348/foo-0.0.44.jar ... > {noformat} -- This message was sent by Atlassian JIRA (v6.2#6252)