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[CI] RandomizedTimeSeriesIT testRateGroupBySubset failing #139645

@elasticsearchmachine

Description

@elasticsearchmachine

Build Scans:

Reproduction Line:

./gradlew ":x-pack:plugin:esql:internalClusterTest" --tests "org.elasticsearch.xpack.esql.action.RandomizedTimeSeriesIT.testRateGroupBySubset" -Dtests.seed=650C68293190866F -Dtests.locale=ta-LK -Dtests.timezone=America/Fortaleza -Druntime.java=25

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Failed. Agg: RATE | Failed windows: 25 windows(1.5460729746444033%):
ROWS: 1617|Failed for row:
[0, null, null, null, null, null, 2025-07-31T09:05:00.000Z, null, null, null]
Wanted: RateStats[count=1, max=RateRange[lower=2.94, upper=153.74558765851745], avg=RateRange[lower=2.94, upper=153.74558765851745], min=RateRange[lower=2.94, upper=153.74558765851745], sum=RateRange[lower=2.94, upper=153.74558765851745]]
Row times and values:
	TS:2025-07-31T09:05:03.738Z=265.0
	TS:2025-07-31T09:05:08.361Z=293.0
	TS:2025-07-31T09:05:02.983Z=658.0
Exception: 
Expected: <1L>
     but: was <0L>
ROWS: 1617|Failed for row:
[0, null, null, null, null, null, 2025-07-31T09:05:20.000Z, null, null, null]
Wanted: RateStats[count=1, max=RateRange[lower=2.94, upper=153.74558765851745], avg=RateRange[lower=2.94, upper=153.74558765851745], min=RateRange[lower=2.94, upper=153.74558765851745], sum=RateRange[lower=2.94, upper=153.74558765851745]]
Row times and values:
	TS:2025-07-31T09:05:2
[truncated]

Issue Reasons:

  • [main] 38 failures in test testRateGroupBySubset (6.8% fail rate in 556 executions)
  • [main] 14 failures in step part3 (11.4% fail rate in 123 executions)
  • [main] 21 failures in step part-3 (6.5% fail rate in 322 executions)
  • [main] 14 failures in pipeline elasticsearch-intake (11.4% fail rate in 123 executions)
  • [main] 20 failures in pipeline elasticsearch-pull-request (6.4% fail rate in 314 executions)

Note:
This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

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