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Posted to common-dev@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2007/06/15 00:34:28 UTC
[jira] Commented: (HADOOP-1442) Zero-byte input files are not
included in InputSplit
[ https://issues.apache.org/jira/browse/HADOOP-1442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12504950 ]
Hadoop QA commented on HADOOP-1442:
-----------------------------------
+1
http://issues.apache.org/jira/secure/attachment/12359775/HADOOP-1442_1.patch applied and successfully tested against trunk revision r547416.
Test results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/287/testReport/
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/287/console
> Zero-byte input files are not included in InputSplit
> ----------------------------------------------------
>
> Key: HADOOP-1442
> URL: https://issues.apache.org/jira/browse/HADOOP-1442
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.12.3
> Environment: ALL
> Reporter: Milind Bhandarkar
> Assignee: Milind Bhandarkar
> Fix For: 0.14.0
>
> Attachments: HADOOP-1442_1.patch
>
>
> The default FileInputFormat::getSplits method does not include zero-byte input files in FileSplit[]. Applications that assume the minimum number of maps to be at least number of input files can get bitten by this, as well as applications that use -reducer NONE to produce number of partitions that are equal to input partitions.
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