[GitHub] [spark] cloud-fan commented on issue #26975: [SPARK-30325][CORE] Stage retry and executor crash cause app hung up forever

2019-12-25 Thread GitBox
cloud-fan commented on issue #26975: [SPARK-30325][CORE] Stage retry and 
executor crash cause app hung up forever
URL: https://github.com/apache/spark/pull/26975#issuecomment-56592
 
 
   LGTM. Can you update the PR description?


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[GitHub] [spark] cloud-fan commented on issue #26975: [SPARK-30325][CORE] Stage retry and executor crash cause app hung up forever

2019-12-25 Thread GitBox
cloud-fan commented on issue #26975: [SPARK-30325][CORE] Stage retry and 
executor crash cause app hung up forever
URL: https://github.com/apache/spark/pull/26975#issuecomment-56423
 
 
   ok to test


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[GitHub] [spark] cloud-fan commented on issue #26975: [SPARK-30325][CORE] Stage retry and executor crash cause app hung up forever

2019-12-23 Thread GitBox
cloud-fan commented on issue #26975: [SPARK-30325][CORE] Stage retry and 
executor crash cause app hung up forever
URL: https://github.com/apache/spark/pull/26975#issuecomment-568682889
 
 
   I don't think it's safe to not reschedule it. Looking at the comment in 
`executorLost`, we want to reschedule because the shuffle files are all lost in 
this executor. The special case is `killedByOtherAttempt.contains(tid)`, which 
means a speculative task has finished on **another executor**. For the stage 
attempt, there is no guarantee that 2 tasks of the same partition will be run 
on different executors.


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[GitHub] [spark] cloud-fan commented on issue #26975: [SPARK-30325][CORE] Stage retry and executor crash cause app hung up forever

2019-12-23 Thread GitBox
cloud-fan commented on issue #26975: [SPARK-30325][CORE] Stage retry and 
executor crash cause app hung up forever
URL: https://github.com/apache/spark/pull/26975#issuecomment-568672632
 
 
   I think the direct problem is, the task status is inconsistent: a task can 
satisfy both `successful(task.index)` and `task.running`. Such tasks will be 
handled twice in `executorLost` and mess up the internal status.
   
   A simple fix can be: change `task.running` to `!successful(task.index) && 
task.running` in `executorLost`


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