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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3162) Map/reduce stops working with comma separated input paths
Date Tue, 15 Apr 2008 01:25:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12588866#action_12588866
] 

Hairong Kuang commented on HADOOP-3162:
---------------------------------------

Runping, if streaming continues to use the deprecated API in JobConf, it keeps the old semantics.
The two new methods break the backward compatibility. We should do it in release 18. We need
more discussion on what's the right syntax and semantics for the comma seperated path names.

> Map/reduce stops working with comma separated input paths
> ---------------------------------------------------------
>
>                 Key: HADOOP-3162
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3162
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.17.0
>            Reporter: Runping Qi
>            Assignee: Amareshwari Sriramadasu
>            Priority: Blocker
>             Fix For: 0.17.0
>
>         Attachments: patch-3162.txt, patch-3162.txt, patch-3162.txt, patch-3162.txt,
patch-3162.txt
>
>
> When a job is given a comma separated input file list, FileInputFormat class throws an
exception, complaining the input is invalid:
> org.apache.hadoop.mapred.InvalidInputException: Input path doesnt exist : hdfs:/
> namenode:port/gridmix/data/MonsterQueryBlockCompressed/part-
> 00000,/gridmix/data/MonsterQueryBlockCompressed/part-00001,/gridmix/data/Monster
> QueryBlockCompressed/part-00002
>         at org.apache.hadoop.mapred.FileInputFormat.validateInput(FileInputForma
> t.java:213)
>         at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:705)
>         at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:973)
>         at org.apache.hadoop.mapred.GenericMRLoadGenerator.run(GenericMRLoadGene
> rator.java:189)

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