Github user kayousterhout commented on a diff in the pull request:

    https://github.com/apache/spark/pull/3003#discussion_r19636413
  
    --- Diff: core/src/main/scala/org/apache/spark/executor/Executor.scala ---
    @@ -210,25 +213,26 @@ private[spark] class Executor(
             val resultSize = serializedDirectResult.limit
     
             // directSend = sending directly back to the driver
    -        val (serializedResult, directSend) = {
    -          if (resultSize >= akkaFrameSize - AkkaUtils.reservedSizeBytes) {
    +        val serializedResult = {
    +          if (resultSize > maxResultSize) {
    +            logInfo(s"Finished $taskName (TID $taskId). result is too 
large (${resultSize} bytes),"
    --- End diff --
    
    If you think the logging will not ever be read by anyone, you should not 
add it all :).  If you're going to have a log message, please make it 
descriptive!


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