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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Edited] (HBASE-5954) Allow proper fsync support for HBase
Date Tue, 08 May 2012 01:07:48 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13270116#comment-13270116
] 

Lars Hofhansl edited comment on HBASE-5954 at 5/8/12 1:06 AM:
--------------------------------------------------------------

Over in HDFS-744 I propose changes to HDFS to allow fsync on files.
Without that both WAL and HFiles (resulting from compactions/flushes) are not guaranteed to
be on disk at the DFS replicas.

The HDFS-744 is becoming big, so I'm not sure how the hadoop folks will receive it. I any
case, this issues tracks the necessary changes on the HBase side.
                
      was (Author: lhofhansl):
    Over I HDFS-744 I propose changes to HDFS to allow fsync on files.
Without that both WAL and HFiles (resulting from compactions/flushes) are not guaranteed to
be on disk at the DFS replicas.

The HDFS-744 is becoming big, so I'm not sure how the hadoop folks will receive it. I any
case, this issues tracks the necessary changes on the HBase side.
                  
> 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
>


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