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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5119) FSEditLog and FSImage should not use FSNamesystem.getFSNamesystem()
Date Wed, 25 Mar 2009 00:05:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12688949#action_12688949
] 

Tsz Wo (Nicholas), SZE commented on HADOOP-5119:
------------------------------------------------

Two options to fix FSImage:

1) pass the FSNamesystem as parameter as shown in 5119_20090323.patch.

2) add setFSNamesystem(..) and getFSNamesystem() methods to FSImage.

I originally think that option (1) is a natural fix.  But option (2) seems working better
for the newly introduced BackupStorage (see HADOOP-5559).  Any comment?

> FSEditLog and FSImage should not use FSNamesystem.getFSNamesystem()
> -------------------------------------------------------------------
>
>                 Key: HADOOP-5119
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5119
>             Project: Hadoop Core
>          Issue Type: Sub-task
>          Components: dfs
>            Reporter: Tsz Wo (Nicholas), SZE
>         Attachments: 5119_20090323.patch
>
>
> FSEditLog and FSImage should not access the namespace by the static method FSNamesystem
getFSNamesystem().

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