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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8449) Refactor recoverLease retries and pauses informed by findings over in hbase-8389
Date Fri, 24 May 2013 03:54:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13665978#comment-13665978

stack commented on HBASE-8449:

Dang.  I lost my nice unit test.  Let me redo and add to the patch.
> Refactor recoverLease retries and pauses informed by findings over in hbase-8389
> --------------------------------------------------------------------------------
>                 Key: HBASE-8449
>                 URL: https://issues.apache.org/jira/browse/HBASE-8449
>             Project: HBase
>          Issue Type: Bug
>          Components: Filesystem Integration
>    Affects Versions: 0.94.7, 0.95.0
>            Reporter: stack
>            Assignee: stack
>            Priority: Critical
>             Fix For: 0.95.1
>         Attachments: 8449.txt, 8449v2.txt, 8449v3.txt, 8449v4.txt, 8449v6.txt
> HBASE-8359 is an interesting issue that roams near and far.  This issue is about making
use of the findings handily summarized on the end of hbase-8359 which have it that trunk needs
refactor around how it does its recoverLease handling (and that the patch committed against
HBASE-8359 is not what we want going forward).
> This issue is about making a patch that adds a lag between recoverLease invocations where
the lag is related to dfs timeouts -- the hdfs-side dfs timeout -- and optionally makes use
of the isFileClosed API if it is available (a facility that is not yet committed to a branch
near you and unlikely to be within your locality with a good while to come).

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