[GitHub] spark pull request: [WIP][SPARK-2595]:The driver run garbage colle...

[andrewor14 <gi...@git.apache.org>]

Github user andrewor14 commented on the pull request:

    https://github.com/apache/spark/pull/1387#issuecomment-54382137
  
    Sorry to revive this again, but I am still confused as to what this PR achieves after reading through the conversation. When an executor JVM dies because of an OOM, the driver will attempt to trigger a GC and trigger cleaning tasks immediately. However, the executor that OOM'ed already died, and will probably not be able to respond to cleaning requests from the driver.
    
    Is the purpose of this to prevent other executors that haven't OOM'ed yet from dying as well? For instance, say I have 5 executors, and 1 of them runs OOM first. Is the purpose of this to prevent the other 4 from dying of the same cause preemptively?


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