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Posted to common-dev@hadoop.apache.org by "Pete Wyckoff (JIRA)" <ji...@apache.org> on 2008/10/01 23:47:44 UTC
[jira] Commented: (HADOOP-4105) libhdfs wiki is very out-of-date
and contains mostly broken links
[ https://issues.apache.org/jira/browse/HADOOP-4105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636189#action_12636189 ]
Pete Wyckoff commented on HADOOP-4105:
--------------------------------------
I think the text I put in about thread safety and FileSystem.get file handles is wrong.
1. The Cache seems to look only at the filesystem being connected to and the user, if specified.
2 For the DFSClient at least, it looks completely thread safe - it seems at the lowest level to always use synchronized methods
I haven't yet looked a lot at what happens if you get 2 FSInput (or Output) streams and try to read/write to them at the same time.
> libhdfs wiki is very out-of-date and contains mostly broken links
> -----------------------------------------------------------------
>
> Key: HADOOP-4105
> URL: https://issues.apache.org/jira/browse/HADOOP-4105
> Project: Hadoop Core
> Issue Type: Task
> Components: documentation, libhdfs
> Reporter: Pete Wyckoff
> Assignee: Pete Wyckoff
> Priority: Minor
> Fix For: 0.20.0
>
> Attachments: HADOOP-4105.1.txt, HADOOP-4105.2.txt, HADOOP-4105.3.txt, HADOOP-4105.4.txt
>
>
> This thing is way out of date and seems incorrect in some places. Also note it is not linked from the wiki front page.
> http://wiki.apache.org/hadoop/LibHDFS
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