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https://issues.apache.org/jira/browse/HADOOP-5973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796689#action_12796689
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Tom White commented on HADOOP-5973:
-----------------------------------
The "map.input.file" parameter is only available in 0.20.0 when using the old
(deprecated) MapReduce API. In the new API the parameter is not set: the
equivalent call is
{code}
((FileSplit) context.getInputSplit).getPath()
{code}
This is as designed, but I think we should update the documentation to explain
this.
> "map.input.file" is not set
> ---------------------------
>
> Key: HADOOP-5973
> URL: https://issues.apache.org/jira/browse/HADOOP-5973
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Affects Versions: 0.20.0
> 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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