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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TEPHRA-243) When transaction log sync is slow, the warning message should contain more information
Date Sat, 09 Sep 2017 03:10:00 GMT

    [ https://issues.apache.org/jira/browse/TEPHRA-243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16159695#comment-16159695

ASF GitHub Bot commented on TEPHRA-243:

GitHub user anew opened a pull request:


    (TEPHRA-243) Improve logging for slow log append

    - adds more detail to the log message (number of entries, bytes written)
    - ensures only one thread logs the message concurrently, by moving it into the method
actually writes to storage. Previously all threads logged it even if they did not write themselves

    - changed ThriftTransactionSystemTest to use LocalTransactionLog (otherwise it does not
get tested at all)
    - fixed a few unrelated compiler warning encountered on the way

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

    $ git pull https://github.com/anew/incubator-tephra tephra-243

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


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

    This closes #53
commit 60085beef1c5b8cef90b1b14751ae7aa78b6d909
Author: anew <anew@apache.org>
Date:   2017-09-09T03:04:38Z

    (TEPHRA-243) Improve logging for slow log append


> When transaction log sync is slow, the warning message should contain more information
> --------------------------------------------------------------------------------------
>                 Key: TEPHRA-243
>                 URL: https://issues.apache.org/jira/browse/TEPHRA-243
>             Project: Tephra
>          Issue Type: Improvement
>    Affects Versions: 0.12.0-incubating
>            Reporter: Andreas Neumann
>            Assignee: Andreas Neumann
>             Fix For: 0.13.0-incubating
> Currently we get this message:
> {noformat}
> 2017-08-12 00:59:46,938 - INFO [TTransactionServer-rpc-857:o.a.t.p.AbstractTransactionLog@102]
- Slow append to log txlog.1502517541689, took 1431 msec.
> {noformat}
> It would be more useful to know how many bytes were written, how many edits were in this

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