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From "Pete Wyckoff (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4399) fuse-dfs per FD context is not thread safe and can cause segfaults and corruptions
Date Mon, 13 Oct 2008 21:32:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639200#action_12639200
] 

Pete Wyckoff commented on HADOOP-4399:
--------------------------------------

TestJobQueueInformation failed because of https://issues.apache.org/jira/browse/HADOOP-4378.





>  fuse-dfs per FD context is not thread safe and can cause segfaults and corruptions
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-4399
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4399
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/fuse-dfs
>    Affects Versions: 0.19.0
>            Reporter: Pete Wyckoff
>            Assignee: Pete Wyckoff
>            Priority: Blocker
>             Fix For: 0.19.0
>
>         Attachments: HADOOP-4399.1.txt
>
>
> for reads, optimal solution would be to have a per thread (per FD) context - including
the buffer. Otherwise, protect the FD context with a mutex as in hadoop-4397 and hadoop-4398.
> for writes, should just protect the context with a mutex as in hadoop-4398.

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