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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1442) Zero-byte input files are not included in InputSplit
Date Thu, 14 Jun 2007 22:34:28 GMT

    [ 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:


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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