Github user squito commented on the pull request:
https://github.com/apache/spark/pull/6545#issuecomment-107985041
It makes sense that the issue might be from caching applications. I think
@tsudukim wasn't saying that "spark.history.retainedApplications = 0" is a
permanent solution, just a temporary workaround if you need this in a currently
deployed system.
It seems like [this one
commit](https://github.com/XuTingjun/spark/commit/a097bd81807c6079a5f7cd5f6f7fb3e09fea8bd7)
was trying to solve the problem by preventing caching of incomplete apps,
right? Those changes look reasonable -- do they solve the problem alone?
there is a lot of other stuff in this PR that seems pretty irrelevant, so its
hard to make sense of it. Again, a test case would help out a lot.
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