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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2021/01/07 21:28:22 UTC
[GitHub] [beam] y1chi opened a new pull request #13695: [BEAM-11581] Start ExecutionStateSampler in Java SDK harness before d…
y1chi opened a new pull request #13695:
URL: https://github.com/apache/beam/pull/13695
…ispatch loop.
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[GitHub] [beam] y1chi commented on pull request #13695: [BEAM-11581] Start ExecutionStateSampler in Java SDK harness before d…
Posted by GitBox <gi...@apache.org>.
y1chi commented on pull request #13695:
URL: https://github.com/apache/beam/pull/13695#issuecomment-767175602
> Changes look good to me. One additional question from me is that do we have a common sense on how much performance overhead it would bring with sampling?
I don't have an accurate number but I believe the overhead shouldn't be large since the ExecutionStateSampler uses a separate daemon thread and only updates the timestamps in ExecutionStates every 200ms, I believe this is what the legacy worker has been doing as well.
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[GitHub] [beam] y1chi commented on pull request #13695: [BEAM-11581] Start ExecutionStateSampler in Java SDK harness before d…
Posted by GitBox <gi...@apache.org>.
y1chi commented on pull request #13695:
URL: https://github.com/apache/beam/pull/13695#issuecomment-758139390
> It has been a while for me. I reviewed the uses of this and it seems right. But can you test it?
I've tried the change and can see at least some execution time metrics become non-zeroes, there are still zeroes but may be due to the sampling period.
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[GitHub] [beam] y1chi commented on pull request #13695: [BEAM-11581] Start ExecutionStateSampler in Java SDK harness before d…
Posted by GitBox <gi...@apache.org>.
y1chi commented on pull request #13695:
URL: https://github.com/apache/beam/pull/13695#issuecomment-756965291
R: @kennknowles @boyuanzz
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[GitHub] [beam] y1chi commented on pull request #13695: [BEAM-11581] Start ExecutionStateSampler in Java SDK harness before d…
Posted by GitBox <gi...@apache.org>.
y1chi commented on pull request #13695:
URL: https://github.com/apache/beam/pull/13695#issuecomment-767175602
> Changes look good to me. One additional question from me is that do we have a common sense on how much performance overhead it would bring with sampling?
I don't have an accurate number but I believe the overhead shouldn't be large since the ExecutionStateSampler uses a separate daemon thread and only updates the timestamps in ExecutionStates every 200ms, I believe this is what the legacy worker has been doing as well.
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[GitHub] [beam] boyuanzz merged pull request #13695: [BEAM-11581] Start ExecutionStateSampler in Java SDK harness before d…
Posted by GitBox <gi...@apache.org>.
boyuanzz merged pull request #13695:
URL: https://github.com/apache/beam/pull/13695
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[GitHub] [beam] y1chi commented on pull request #13695: [BEAM-11581] Start ExecutionStateSampler in Java SDK harness before d…
Posted by GitBox <gi...@apache.org>.
y1chi commented on pull request #13695:
URL: https://github.com/apache/beam/pull/13695#issuecomment-756965291
R: @kennknowles @boyuanzz
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[GitHub] [beam] boyuanzz merged pull request #13695: [BEAM-11581] Start ExecutionStateSampler in Java SDK harness before d…
Posted by GitBox <gi...@apache.org>.
boyuanzz merged pull request #13695:
URL: https://github.com/apache/beam/pull/13695
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