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https://issues.apache.org/jira/browse/MAPREDUCE-370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12740516#action_12740516
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Amareshwari Sriramadasu commented on MAPREDUCE-370:
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bq. To achieve this, I think we could port MultipleOutputs, and change the
semantics of getCollector() in the multi name case, so that the multi name is
the full name of the name of the output file. This method is typically invoked
in the reduce() method, where the key and value are available, and can be used
to form the name.
If we do this, this will remove generate* methods from the api proposed. And
api for writing would look like :
{code}
public <K,V> void write(String namedOutput, K key, V value, String outputPath)
throws IOException, InterruptedException;
public <K,V> void write(String namedOutput, K key, V value)
throws IOException, InterruptedException;
public <K,V> void write( K key, V value, String outputPath)
throws IOException, InterruptedException;
{code}
let me know if this looks fine.
> Change org.apache.hadoop.mapred.lib.MultipleOutputs to use new api.
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-370
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-370
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Reporter: Amareshwari Sriramadasu
> Assignee: Amareshwari Sriramadasu
> Attachments: patch-370.txt
>
>
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