hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6068) Illegal progress value warnings in map tasks
Date Mon, 11 Jan 2016 00:10:39 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15091297#comment-15091297
] 

Junping Du commented on MAPREDUCE-6068:
---------------------------------------

Forget to mention, there is still another place in Merger.java that could over the limit:
{code}
          if (totalBytes != 0)
            mergeProgress.set(totalBytesProcessed * progPerByte);
          else
            mergeProgress.set(1.0f); // Last pass and no segments left - we're done
{code}
[~decster], do you think we should update here also?

> Illegal progress value warnings in map tasks
> --------------------------------------------
>
>                 Key: MAPREDUCE-6068
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6068
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, task
>    Affects Versions: 3.0.0
>            Reporter: Todd Lipcon
>            Assignee: Binglin Chang
>              Labels: BB2015-05-RFC
>         Attachments: MAPREDUCE-6068.002.patch, MAPREDUCE-6068.v1.patch
>
>
> When running a terasort on latest trunk, I see the following in my task logs:
> {code}
> 2014-09-02 17:42:28,437 INFO [main] org.apache.hadoop.mapred.MapTask: Map output collector
class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer
> 2014-09-02 17:42:42,238 WARN [main] org.apache.hadoop.util.Progress: Illegal progress
value found, progress is larger than 1. Progress will be changed to 1
> 2014-09-02 17:42:42,238 WARN [main] org.apache.hadoop.util.Progress: Illegal progress
value found, progress is larger than 1. Progress will be changed to 1
> 2014-09-02 17:42:42,241 INFO [main] org.apache.hadoop.mapred.MapTask: Starting flush
of map output
> {code}
> We should eliminate these warnings.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message