azagrebin commented on issue #9272: [FLINK-13435] Remove 
ShuffleDescriptor.ReleaseType and make release semantics fixed per partition 
type
URL: https://github.com/apache/flink/pull/9272#issuecomment-516728793
 
 
   Thanks for the review @zhijiangW ! I will go through the smaller comments. 
For general concerns:
   
   - I think this PR should fit to the overall change we plan with #9250 and 
FLINK-13476. In #9250 we basically stop using explicitly any notion of 'release 
on consumption' and assume that blocking partitions always have to be released 
by JM/TM. FLINK-13476 should also fix it for pipelined bounded until we couple 
Task finished state with the consumption confirmation attempt, basically with 
the partition state. Not sure, there are other ways for the direct release 
internally in netty shuffle service.
   
   - FLINK-13478 and FLINK-13493 seem to be independent issues or do I miss 
something? 

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