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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TEPHRA-215) Share PruneUpperBoundWriter across all TransactionProcessors on the same region server
Date Tue, 07 Feb 2017 08:18:41 GMT

    [ https://issues.apache.org/jira/browse/TEPHRA-215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15855551#comment-15855551
] 

ASF GitHub Bot commented on TEPHRA-215:
---------------------------------------

GitHub user gokulavasan opened a pull request:

    https://github.com/apache/incubator-tephra/pull/32

    (TEPHRA-215) (TEPHRA-218) Use single thread across all regions in a r…

    …egion server to persist Prune Upper Bound info. Also don't refresh cache during startup
of TransactionStateCache to avoid the possibility of Service stopping if tx.snapshot dir is
not found during startup
    
    JIRA : 
    https://issues.apache.org/jira/browse/TEPHRA-215
    https://issues.apache.org/jira/browse/TEPHRA-218

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/gokulavasan/incubator-tephra feature/tephra-215

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-tephra/pull/32.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #32
    
----
commit 542e0f3512c22387c3fe349baeb1744b64a4ca06
Author: Gokul Gunasekaran <gokul@cask.co>
Date:   2017-02-07T08:17:14Z

    (TEPHRA-215) (TEPHRA-218) Use single thread across all regions in a region server to persist
Prune Upper Bound info. Also don't refresh cache during startup of TransactionStateCache to
avoid the possibility of Service stopping if tx.snapshot dir is not found during startup

----


> Share PruneUpperBoundWriter across all TransactionProcessors on the same region server
> --------------------------------------------------------------------------------------
>
>                 Key: TEPHRA-215
>                 URL: https://issues.apache.org/jira/browse/TEPHRA-215
>             Project: Tephra
>          Issue Type: Improvement
>    Affects Versions: 0.11.0-incubating
>            Reporter: Gokul Gunasekaran
>            Assignee: Gokul Gunasekaran
>             Fix For: 0.11.0-incubating
>
>
> Currently we start one prune upperbound writer thread per TransactionProcessor coprocessor.
Instead we should be able to share only one thread that flushes writes to the prune state
table periodically.



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