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Chang Li commented on YARN-4570: -------------------------------- Profiled several nodemanagers' heap dump in our clusters, not able to find the "testing" RawLocalFilesystem leaking by far. Close this as cannot reproduce? > Nodemanager leaking RawLocalFilesystem instances for user "testing" > ------------------------------------------------------------------- > > Key: YARN-4570 > URL: https://issues.apache.org/jira/browse/YARN-4570 > Project: Hadoop YARN > Issue Type: Bug > Components: nodemanager > Affects Versions: 2.6.0 > Reporter: Jason Lowe > Assignee: Chang Li > > I recently ran across a NodeManager that was running slowly due to excessive > GC. Digging into the heap I saw that most of the issue was leaked filesystem > statistics data objects which has been fixed in HADOOP-12107. However I also > noticed there were many thousands of RawLocalFilesystem objects on the heap, > far more than any other FileSystem type. Sampling a number of them showed > that they were for the "testing" user. -- This message was sent by Atlassian JIRA (v6.3.4#6332)