Flink groupBy

Posted by Alieh on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Flink-groupBy-tp12674.html

Hi All

Is there anyway in Flink to send a process to a reducer?

If I do "test.groupby(1).reduceGroup", each group is processed on one
reducer? And if the number of groups is more than the number of task
slots we have, does Flink distribute the process evenly? I mean if we
have for example groups of size 10, 5, 5 and we have two task slots, is
the process distributed in this way?

task slot1: group of size 10

task slot2: two groups of size 5

Best,

Alieh