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TEZ-4336: ShuffleScheduler should try to report the original exception (when shuffle becomes unhealthy) - #155
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…n (when shuffle becomes unhealthy)
tez-yetus
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Oct 18, 2021
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rbalamohan
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+1. LGTM for ordered shuffle scenario.
One thing to check later would be on the exception codepath for unordered case and add it as needed.
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…uffle becomes unhealthy) (apache#155) (Laszlo Bodor reviewed by Rajesh Balamohan) (cherry picked from commit 6863a2d)
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…n (when shuffle becomes unhealthy) (apache#155) (Laszlo Bodor reviewed by Rajesh Balamohan) (cherry picked from commit 6863a2d)
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…n (when shuffle becomes unhealthy) (apache#155) (Laszlo Bodor reviewed by Rajesh Balamohan) (cherry picked from commit 6863a2d) (cherry picked from commit 436a790)
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…l exception (when shuffle becomes unhealthy) (apache#155) (Laszlo Bodor reviewed by Rajesh Balamohan) (#16) (cherry picked from commit 6863a2d) (cherry picked from commit 436a790) Co-authored-by: Bodor Laszlo <bodorlaszlo0202@gmail.com>
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…l exception (when shuffle becomes unhealthy) (apache#155) (Laszlo Bodor reviewed by Rajesh Balamohan) (#16) (cherry picked from commit 6863a2d) (cherry picked from commit 436a790) Co-authored-by: Bodor Laszlo <bodorlaszlo0202@gmail.com>
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PR contains 2 changes:
original exception in hive client was:
after the change, the original cause can be seen + hostFailures are also reported, e.g.
full log is uploaded to Jira: https://issues.apache.org/jira/secure/attachment/13035045/TEZ_4336_client_output.txt
here, the root cause was my injected error (I also had the WIP TEZ-4338 on the cluster, which includes this feature):
under real-life circumstances, this exception could be any kind of connection problem