[jira] Commented: (HADOOP-3382) Memory leak when files are not cleanly closed

["Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-3382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12596529#action_12596529 ] 

Tsz Wo (Nicholas), SZE commented on HADOOP-3382:
------------------------------------------------

abandonFileInProgress() in ClientProtocol is deprecated.  We should remove it as well.

> Memory leak when files are not cleanly closed
> ---------------------------------------------
>
>                 Key: HADOOP-3382
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3382
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.16.0
>            Reporter: Raghu Angadi
>            Assignee: Raghu Angadi
>
> {{FSNamesystem.internalReleaseCreate()}} in invoked on files that are open for writing but not cleanly closed. e.g. when client invokes {{abandonFileInProgress()}} or when lease expires. It deletes the last block if it has a length of zero. The block is deleted from the file INode but not from {{blocksMap}}. Then leaves a reference to such file until NameNode is restarted. When this happens  HADOOP-3381 multiplies amount of memory leak.

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