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https://issues.apache.org/jira/browse/HADOOP-1952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12537764
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Milind Bhandarkar commented on HADOOP-1952:
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Lohit,
A lot of users do not override partitioners, do not specify combiners etc.
These users should not get spurious messages about absence of these at info
level. I think the better fix would be in StreamUtil.goodClassOrNull method,
which checks if the class is specified and when it is not found, logs it at
info level and throws an exception. It should not silently ignore and continue.
> Streaming does not handle invalid -inputformat (typo by users for example)
> ---------------------------------------------------------------------------
>
> Key: HADOOP-1952
> URL: https://issues.apache.org/jira/browse/HADOOP-1952
> Project: Hadoop
> Issue Type: Bug
> Components: contrib/streaming
> Affects Versions: 0.14.1
> Reporter: lohit vijayarenu
> Assignee: lohit vijayarenu
> Priority: Minor
> Attachments: CatchInvalidInputFormat.patch
>
>
> Hadoop Streaming does not handle invalid inputformat class. For example
> -inputformat INVALID class would not be thrown as an error. Instead it
> defaults to StreamInputFormat. If an invalid inputformat is specified, it is
> good to fail.
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