Rithin Kumar R S created TINKERPOP-2784:
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Summary: Gremlin Server on Windows in GitHub Actions slows down
significantly for some tests occasionally
Key: TINKERPOP-2784
URL: https://issues.apache.org/jira/browse/TINKERPOP-2784
Project: TinkerPop
Issue Type: Bug
Components: server
Environment: Windows - GitHub Actions
Reporter: Rithin Kumar R S
Gremlin Server has been observed to occasionally slow down when running
Integration and Cucumber Tests on Windows in GitHub Actions. Here is an example
illustrating the slowdown:
Every so often (~2% of the time) on GitHub Actions, the Windows workflow for
Gremlin Javascript will fail. There is a recurring failure from the scenario
'g_V_connectedComponent_hasXcomponentX' on the 'When iterated to list' step in
'ConnectedComponent.feature'. This can be observed in this Workflow Run:
[Link|https://github.com/L0Lmaker/tinkerpop/runs/7755756716?check_suite_focus=true#step:4:12408].
When 'g_V_connectedComponent_hasXcomponentX' fails, sometimes other scenarios
like 'g_V_dedup_connectedComponent_hasXcomponentX' can also fail.
On adding some server logs, on the failed tests we can observe that on the
server side, the request is still processed but takes longer than the Cucumber
threshold ([Link
|https://github.com/L0Lmaker/tinkerpop/runs/7755756716?check_suite_focus=true#step:4:11942]).
We can also see that the slow down is not limited to just the specific
Scenario
([Link|https://github.com/L0Lmaker/tinkerpop/runs/7755756716?check_suite_focus=true#step:4:11941]).
For reference, these are the usual runtimes for the same Steps respectively,
but on a different workflow run
(['connectedComponent()'|https://github.com/L0Lmaker/tinkerpop/runs/7755709203?check_suite_focus=true#step:4:11861]
and
['dedup()'|[https://github.com/L0Lmaker/tinkerpop/runs/7755709203?check_suite_focus=true#step:4:11862]]).
This ticket is to track the investigation of the slowdown on Gremlin Server on
Windows in GitHub Actions.
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