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Hadoop QA commented on HDFS-4182: --------------------------------- {color:green}+1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12553525/HDFS-4182.txt 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 2 new or modified test files. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. The javadoc tool did not generate any warning messages. {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-hdfs-project/hadoop-hdfs. {color:green}+1 contrib tests{color}. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/3502//testReport/ Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3502//console This message is automatically generated. > SecondaryNameNode leaks NameCache entries > ----------------------------------------- > > Key: HDFS-4182 > URL: https://issues.apache.org/jira/browse/HDFS-4182 > Project: Hadoop HDFS > Issue Type: Bug > Components: name-node > Affects Versions: 0.23.4, 3.0.0, 2.0.2-alpha > Reporter: Todd Lipcon > Assignee: Robert Joseph Evans > Priority: Critical > Attachments: HDFS-4182.txt, HDFS-4182.txt, HDFS-4182.txt, > HDFS-4182.txt > > > We recently saw an issue where a 2NN ran out of memory, even though it had a > relatively small fsimage. When we looked at the heap dump, we saw that all of > the memory had gone to entries in the NameCache. > It appears that the NameCache is staying in "initializing" mode forever, and > therefore a long running 2NN leaks entries. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira