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From "Jitendra Nath Pandey (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2756) Warm standby does not read the in_progress edit log
Date Fri, 06 Jan 2012 02:35:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13181054#comment-13181054
] 

Jitendra Nath Pandey commented on HDFS-2756:
--------------------------------------------

  Reading in_progress segments could require the stand by to read records from middle of a
segment, which 
in turn requires skipping the already read records. This is supported by the interfaces but
not implemented in FileJournalManager. 
  I think we could fix it as I mentioned in HDFS-1975 ([comment|https://issues.apache.org/jira/browse/HDFS-1975?focusedCommentId=13132131&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13132131"])
BK fixed it in BOOKKEEPER-11.
                
> Warm standby does not read the in_progress edit log 
> ----------------------------------------------------
>
>                 Key: HDFS-2756
>                 URL: https://issues.apache.org/jira/browse/HDFS-2756
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Hari Mankude
>
> Warm standby does not read the in_progress edit log. This could result in standby taking
a long time to become the primary during a failover scenario.

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