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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-2166) "map.input.file" is not set
Date Fri, 29 Oct 2010 10:30:27 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12926229#action_12926229
] 

Amareshwari Sriramadasu commented on MAPREDUCE-2166:
----------------------------------------------------

The configuration property "map.input.file" would be needed to access the file name from streaming
jobs.

> "map.input.file" is not set
> ---------------------------
>
>                 Key: MAPREDUCE-2166
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2166
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: task
>            Reporter: Rares Vernica
>            Priority: Minor
>
> Hadoop does not set the "map.input.file" variable. I tried the fallowing and all I get
is "null".
> public class Map extends Mapper<Object, Text, LongWritable, Text> {
>    public void map(Object key, Text value, Context context)
>            throws IOException, InterruptedException {
>        Configuration conf = context.getConfiguration();
>        System.out.println(conf.get("map.input.file"));
>    }
>    protected void setup(Context context) throws IOException,
>            InterruptedException {
>        Configuration conf = context.getConfiguration();
>        System.out.println(conf.get("map.input.file"));
>    }
> }

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