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https://issues.apache.org/jira/browse/HDFS-5099?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth updated HDFS-5099:
--------------------------------
Component/s: namenode
Target Version/s: 3.0.0, 2.1.1-beta
Affects Version/s: (was: 2.3.0)
2.1.1-beta
Hadoop Flags: Reviewed
+1 for the patch. Nice find, Chuan! This is applicable to branch-2.1-beta
too, so I'll commit and merge it down to there.
> Namenode#copyEditLogSegmentsToSharedDir should close EditLogInputStreams upon
> finishing
> ---------------------------------------------------------------------------------------
>
> Key: HDFS-5099
> URL: https://issues.apache.org/jira/browse/HDFS-5099
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.0.0, 2.1.1-beta
> Reporter: Chuan Liu
> Assignee: Chuan Liu
> Attachments: HDFS-5099-trunk.patch
>
>
> In {{Namenode#copyEditLogSegmentsToSharedDir()}} method, we open a collection
> of EditLogInputStreams to read and apply to shareEditlog. In {{readOpt()}}
> method, we will open the underlying log file on disk. After applying all the
> opts, we do not close the collection of streams currently. This lead to a
> file handle leak on Windows as later we would fail to delete those files.
> This happens in TestInitializeSharedEdits test case, where we explicitly
> called {{Namenode# initializeSharedEdits()}}, where
> {{copyEditLogSegmentsToSharedDir()}} is used. Later we fail to create new
> MiniDFSCluster with the following exception.
> {noformat}
> java.io.IOException: Could not fully delete
> C:\hdc\hadoop-hdfs-project\hadoop-hdfs\target\test\data\dfs\name1
> at
> org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:759)
> at
> org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:644)
> at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:334)
> at
> org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:316)
> at
> org.apache.hadoop.hdfs.server.namenode.ha.TestInitializeSharedEdits.setupCluster(TestInitializeSharedEdits.java:68)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> …
> {noformat}
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