[jira] Commented: (HADOOP-3705) CompositeInputFormat is unable to parse InputFormat classes with names containing '_' or '$'

["Jingkei Ly (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-3705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12622591#action_12622591 ] 

Jingkei Ly commented on HADOOP-3705:
------------------------------------

Yes, this patch fixes the issue was having. Cheers

> CompositeInputFormat is unable to parse InputFormat classes with names containing '_' or '$'
> --------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3705
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3705
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.17.0
>            Reporter: Jingkei Ly
>         Attachments: HADOOP-3705.patch
>
>
> If I try to set  "mapred.join.expr" with my own InputFormat class that contains a  '_' character (or if my InputFormat class is a static inner class),  I get the following exception thrown when I run my MapReduce job: 
> Exception in thread "main" java.io.IOException: Unexpected: 95
> 	at org.apache.hadoop.mapred.join.Parser$Lexer.next(Parser.java:161)
> 	at org.apache.hadoop.mapred.join.Parser.parse(Parser.java:479)
> 	at org.apache.hadoop.mapred.join.CompositeInputFormat.setFormat(CompositeInputFormat.java:77)
> 	at org.apache.hadoop.mapred.join.CompositeInputFormat.validateInput(CompositeInputFormat.java:118)
> 	at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:705)
> 	at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:973)
> If the class contains '$' the exception reads Unexpected: 95.

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