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From "Luke Lu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5954) Allow proper fsync support for HBase
Date Tue, 25 Sep 2012 09:06:09 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13462584#comment-13462584
] 

Luke Lu commented on HBASE-5954:
--------------------------------

Hi Lars,

We just noticed that HDFS-744 did not implement the correct hsync semantics (mostly due to
HDFS-265) so that the hsync is slower AND (arguably) less durable than hflush in Hadoop 1.x.
                
> 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: 0.94.3, 0.96.0
>
>         Attachments: 5954-trunk-hdfs-trunk.txt, 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,
hbase-hdfs-744.txt
>
>


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