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Don't consider scheduler idle while executing Scheduler.update_graph #8877

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hendrikmakait
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Partially addresses #8876

  • Tests added / passed
  • Passes pre-commit run --all-files

@hendrikmakait hendrikmakait self-assigned this Sep 19, 2024
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github-actions bot commented Sep 19, 2024

Unit Test Results

See test report for an extended history of previous test failures. This is useful for diagnosing flaky tests.

    25 files  ± 0      25 suites  ±0   10h 22m 24s ⏱️ - 3m 32s
 4 127 tests + 1   4 014 ✅ + 4    111 💤 ±0  2 ❌  - 3 
47 674 runs  +12  45 564 ✅ +15  2 108 💤 +1  2 ❌  - 4 

For more details on these failures, see this check.

Results for commit 40f3a35. ± Comparison against base commit 80b3af5.

♻️ This comment has been updated with latest results.

@hendrikmakait hendrikmakait changed the title Don't consider Scheduler idle while executing Scheduler.update_graph Don't consider scheduler idle while executing Scheduler.update_graph Sep 19, 2024
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@jrbourbeau jrbourbeau left a comment

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Nice, thanks @hendrikmakait. I think this will help when dealing with large graphs

@hendrikmakait hendrikmakait marked this pull request as ready for review September 23, 2024 10:49
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Thanks @hendrikmakait, this LGTM. I left a couple of non-blocking comments. Feel free to include or ignore.

@@ -4913,8 +4916,11 @@ async def update_graph(
# (which may not have been added to who_wants yet)
client=client,
)
end = time()
self.digest_metric("update-graph-duration", end - start)
finally:
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Just noting that this finally block is being used to ensure we always decrement the _active_graph_updates counter

distributed/tests/test_scheduler.py Outdated Show resolved Hide resolved
class UpdateGraphTrackerPlugin(SchedulerPlugin):
def start(self, scheduler):
self.scheduler = scheduler
self.idle_during_update_graph = None
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[Non-blocking nit] This is totally fine as is but maybe don't even assign self.idle_during_update_graph until inside the update_graph plugin hook? assert plugin.idle_during_update_graph is None could mean that the update_graph hook didn't run at all.

Suggested change
self.idle_during_update_graph = None

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I've slightly adjusted this such that idle_during_update_graph is initialized to None and set to True or False during the hook.

hendrikmakait and others added 2 commits September 24, 2024 10:15
Co-authored-by: James Bourbeau <jrbourbeau@users.noreply.github.com>
Co-authored-by: James Bourbeau <jrbourbeau@users.noreply.github.com>
@jrbourbeau jrbourbeau merged commit f870325 into dask:main Sep 24, 2024
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2 participants