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https://issues.apache.org/jira/browse/MAPREDUCE-6053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul Vasilev updated MAPREDUCE-6053:
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Description:
MultipleTextOutputFormat class removed from new api. MultipleOutputs class
forces developer to set names of output files at job configuration time.
So with new api I can't create files with names based on keys (I don't know all
keys. Therefore I can't set output file names at job configuration time).
This is major disadvantage in comparison with old api and force developer to
use it.
was:
MultipleTextOutputFormat class removed from new api. MultipleOutputs class
force developer to set names of output files at job configuration time. So with
new api I can't create files with names based on keys (I don't know all keys.
Therefore I can't set output file names at job configuration time).
This is major disadvantage in comparison with old api and force developer to
use it.
> New hadoop API don't allow dynamic key-based names for output files
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-6053
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6053
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: job submission
> Reporter: Paul Vasilev
>
> MultipleTextOutputFormat class removed from new api. MultipleOutputs class
> forces developer to set names of output files at job configuration time.
> So with new api I can't create files with names based on keys (I don't know
> all keys. Therefore I can't set output file names at job configuration time).
> This is major disadvantage in comparison with old api and force developer to
> use it.
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