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Elias Levy commented on FLINK-12122: ------------------------------------ What is the status of this issue? It's has a serious negative effect on production clusters now that we upgraded some old jobs to 1.9.0. > Spread out tasks evenly across all available registered TaskManagers > -------------------------------------------------------------------- > > Key: FLINK-12122 > URL: https://issues.apache.org/jira/browse/FLINK-12122 > Project: Flink > Issue Type: Sub-task > Components: Runtime / Coordination > Affects Versions: 1.6.4, 1.7.2, 1.8.0 > Reporter: Till Rohrmann > Priority: Major > Attachments: image-2019-05-21-12-28-29-538.png, > image-2019-05-21-13-02-50-251.png > > > With Flip-6, we changed the default behaviour how slots are assigned to > {{TaskManages}}. Instead of evenly spreading it out over all registered > {{TaskManagers}}, we randomly pick slots from {{TaskManagers}} with a > tendency to first fill up a TM before using another one. This is a regression > wrt the pre Flip-6 code. > I suggest to change the behaviour so that we try to evenly distribute slots > across all available {{TaskManagers}} by considering how many of their slots > are already allocated. -- This message was sent by Atlassian Jira (v8.3.2#803003)