Github user sarutak commented on the pull request:
https://github.com/apache/incubator-flink/pull/182#issuecomment-62382371
Actually, I have never hit issues caused by not setting keepalive. It's
just usual practice of socket programming but ping can work well. I'll close
this PR for now and if I hit actual problem, I reopen this PR or open new PR.
Thanks.
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