[SPARK-17742][core] Handle child process exit in SparkLauncher. #18877
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Currently the launcher handle does not monitor the child spark-submit process it launches; this means that if the child exits with an error, the handle's state will never change, and an application will not know that the application has failed. This change adds code to monitor the child process, and changes the handle state appropriately when the child process exits. Tested with added unit tests.
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Test build #80368 has finished for PR 18877 at commit
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Contributor
Author
ash211
reviewed
Aug 10, 2017
| int ec; | ||
| try { | ||
| ec = childProc.exitValue(); | ||
| } catch (Exception e) { |
Contributor
There was a problem hiding this comment.
might want to log the exception here
| try { | ||
| childProc.waitFor(); | ||
| } catch (Exception e) { | ||
| // Try again. |
And log exceptions. And add a transition to KILLED state that was missing.
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Test build #80511 has finished for PR 18877 at commit
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Contributor
Author
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If there's no more feedback, I plan to push this soon to unblock other work on this module. |
Contributor
Author
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Alright, merging this to master. |
Member
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yes @danelkotev |
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Currently the launcher handle does not monitor the child spark-submit
process it launches; this means that if the child exits with an error,
the handle's state will never change, and an application will not know
that the application has failed.
This change adds code to monitor the child process, and changes the
handle state appropriately when the child process exits.
Tested with added unit tests.