Github user Xazax-hun commented on the pull request:
https://github.com/apache/flink/pull/1769#issuecomment-194419456
I think the soft references solution is not worth investigating, and I
agree that the best way to solve the problem is to make the operators smarter
for the iterative jobs. Do you want to merge this pull request to temporarily
solve the problem until the other solution is materialized? In case the answer
is no, I think I might give this Jira back to someone else to be able to focus
on serialization (in case the community accept me to work on that.)
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