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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3146) SequenceFile should not call flush excessively
Date Tue, 01 Apr 2008 04:46:27 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12583996#action_12583996
] 

dhruba borthakur commented on HADOOP-3146:
------------------------------------------

I agree. I think we should revert back the semantics of DFSOutputStream.flush() to what it
was in 0.16. Also, introduce a new call DFSOutputStream.sync() that actually waits for packets
to get acknowledged from datanodes. Patch coming soon....

> SequenceFile should not call flush excessively
> ----------------------------------------------
>
>                 Key: HADOOP-3146
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3146
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Runping Qi
>             Fix For: 0.17.0
>
>
> Starting fron hadoop-0.17, calling flush of dfs becomes very expensive.
> It does not make much sense to call flush inside append.

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