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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5374) CombineFileRecordReader does not set "map.input.*" configuration parameters for first file read
Date Sat, 02 May 2015 17:36:06 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525375#comment-14525375
] 

Hadoop QA commented on MAPREDUCE-5374:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  14m 33s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:red}-1{color} | tests included |   0m  0s | The patch doesn't appear to include any
new or modified tests.  Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. |
| {color:green}+1{color} | javac |   7m 32s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 31s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 21s | The applied patch does not increase
the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   0m 45s | The applied patch generated  2 new checkstyle
issues (total was 17, now 19). |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 33s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 33s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 14s | The patch does not introduce any new Findbugs
(version 2.0.3) warnings. |
| {color:green}+1{color} | mapreduce tests |   1m 34s | Tests passed in hadoop-mapreduce-client-core.
|
| | |  37m 39s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12590890/MAPREDUCE-5374.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / f1a152c |
| checkstyle |  https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5592/artifact/patchprocess/diffcheckstylehadoop-mapreduce-client-core.txt
|
| hadoop-mapreduce-client-core test log | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5592/artifact/patchprocess/testrun_hadoop-mapreduce-client-core.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5592/testReport/
|
| Java | 1.7.0_55 |
| uname | Linux asf901.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep
3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5592/console |


This message was automatically generated.

> CombineFileRecordReader does not set "map.input.*" configuration parameters for first
file read
> -----------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5374
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5374
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>            Reporter: Dave Beech
>            Assignee: Dave Beech
>         Attachments: MAPREDUCE-5374.patch, MAPREDUCE-5374.patch
>
>
> The CombineFileRecordReader operates on splits consisting of multiple files. Each time
a new record reader is initialised for a "chunk", certain parameters are supposed to be set
on the configuration object (map.input.file, map.input.start and map.input.length)
> However, the first reader is initialised in a different way to subsequent ones (i.e.
initialize is called by the MapTask directly rather than from inside the record reader class).
Because of this, these config parameters are not set properly and are returned as null when
you access them from inside a mapper. 



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