Hi all,
Usually we set the parameter before the job starts. I am wondering whether we
can do that after the job starts, e.g. in a configure() method of a map task.
Or can we even do that in map function to dynamically tune the parameters? How
about reduce side?
Besides, If I can do that in a specific task, are these modifications only
visible to that task, or do they have a global impact? (currently, I am
focusing on io.sort.record.percent).
Thanks.
-Gang
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