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Posted to common-dev@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2007/01/25 20:45:49 UTC

[jira] Commented: (HADOOP-931) Make writes to S3FileSystem world visible only on completion

    [ https://issues.apache.org/jira/browse/HADOOP-931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12467511 ] 

Doug Cutting commented on HADOOP-931:
-------------------------------------

Hmm.  Seeing partial files could be considered a feature.  LocalFileSystem also makes partial files visitible, no?  Is this breaking something?  If not, I'd leave things as-is.

> Make writes to S3FileSystem world visible only on completion
> ------------------------------------------------------------
>
>                 Key: HADOOP-931
>                 URL: https://issues.apache.org/jira/browse/HADOOP-931
>             Project: Hadoop
>          Issue Type: Bug
>          Components: fs
>            Reporter: Tom White
>
> Currently files written to S3 are visible to other processes as soon as the first block has been written. This is different to DFS which only makes files world visible after the stream writing to the file has closed (see FSNamesystem.completeFile).
> We could implement this by having a piece of inode metadata that indicates the visibility of the file.

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