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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 Wed, 13 Sep 2017 17:29:00 GMT

    [ https://issues.apache.org/jira/browse/TEPHRA-243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16164996#comment-16164996
] 

ASF GitHub Bot commented on TEPHRA-243:
---------------------------------------

Github user anew commented on a diff in the pull request:

    https://github.com/apache/incubator-tephra/pull/53#discussion_r138686057
  
    --- Diff: tephra-core/src/main/java/org/apache/tephra/persist/AbstractTransactionLog.java
---
    @@ -48,21 +52,30 @@
       protected long timestamp;
       private volatile boolean initialized;
       private volatile boolean closed;
    +  private AtomicLong writtenUpTo = new AtomicLong();
    --- End diff --
    
    yes it is only called within synchronized {}


> 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
sync. 



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