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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5954) Allow proper fsync support for HBase
Date Thu, 26 Jul 2012 16:33:36 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13423201#comment-13423201
] 

Lars Hofhansl commented on HBASE-5954:
--------------------------------------

Thinking more about HTable#hsync, I think that would hard to make useful to an application.
The application would need to do know which RegionServers to hsync the WAL on (unless we want
to flush for a Table, which means all RegionServer hosting regions for this table need to
hsync their WAL, and that does not seem to be useful).

A similar argument goes for the RPCs (which will be split to multiple RegionServers).
So #6 and #7 are out I think.

I think Todd was right after all (just took me a long time to come around to it), a flag per
Put/Delete/Increment/Append/etc, would be best option.
                
> Allow proper fsync support for HBase
> ------------------------------------
>
>                 Key: HBASE-5954
>                 URL: https://issues.apache.org/jira/browse/HBASE-5954
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.96.0, 0.94.2
>
>         Attachments: 5954-trunk-hdfs-trunk-v2.txt, 5954-trunk-hdfs-trunk-v3.txt, 5954-trunk-hdfs-trunk-v4.txt,
5954-trunk-hdfs-trunk-v5.txt, 5954-trunk-hdfs-trunk-v6.txt, 5954-trunk-hdfs-trunk.txt, hbase-hdfs-744.txt
>
>


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