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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8434) Allow enabling hbase 8354 to support real lease recovery
Date Thu, 25 Apr 2013 18:00:22 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13642016#comment-13642016
] 

Enis Soztutar commented on HBASE-8434:
--------------------------------------

bq. Okay - but then we need synchronous lease recovery for 0.94 - in HBASE 8389 - the patch
v5 makes us skip lease recovery. I think either we revert that patch or we provide an option
to force lease recovery
As Nicolas said, patch v5 at HBASE-8389 is just a temp fix until the real fix comes through.
Ted is working on bringing isFileClosed() to Hadoop branch-1, so we might be able to have
this functionality in all latest versions of hadoop branches. The remaining discussion we
should have is what to do when isFileClosed() is not there.
Agreed, let's move the discussion back to HBASE-8389 first, then we can decide what to do
here. 
                
> Allow enabling hbase 8354 to support real lease recovery
> --------------------------------------------------------
>
>                 Key: HBASE-8434
>                 URL: https://issues.apache.org/jira/browse/HBASE-8434
>             Project: HBase
>          Issue Type: Improvement
>          Components: MTTR
>            Reporter: Varun Sharma
>            Assignee: Varun Sharma
>             Fix For: 0.94.8
>
>         Attachments: 8434.patch
>
>
> Please see discussion in HBase 8389.
> For environments where lease recovery time can be bounded on the HDFS side through tight
timeouts, provide a toggle for users who want the WAL splitting to continue only after the
lease is truly recovered and the file is closed.

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