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https://issues.apache.org/jira/browse/HADOOP-4233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12633034#action_12633034
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Arun C Murthy commented on HADOOP-4233:
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I believe all parameters in JobConf are converted to env. variables already:
map.input.file == env['map_input_file']
In general dots are converted to underscores... could you please check?
> Streaming scripts need more information
> ---------------------------------------
>
> Key: HADOOP-4233
> URL: https://issues.apache.org/jira/browse/HADOOP-4233
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/streaming
> Reporter: Andrey Gladyshev
>
> Streaming scripts are lack of useful information.
> For example we need job.get("map.input.file")) in script.
> Information can be provide by environment variable.
> It's easy to implement by adding in PipeMapRed.configure() something like:
> // add HADOOP_INPUTFILE environment variable with the value of input filename
> envPut(childEnv, "HADOOP_INPUTFILE", job_.get("map.input.file"));
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