[CI] RequestExecutorServiceTests testExecute_Throws_WhenRateLimitedQueueIsFull failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-intake #33717 / part2
• elasticsearch-pull-request #115597 / part-2
• elasticsearch-intake #33554 / part2

Reproduction Line:

./gradlew ":x-pack:plugin:inference:test" --tests "org.elasticsearch.xpack.inference.external.http.sender.RequestExecutorServiceTests.testExecute_Throws_WhenRateLimitedQueueIsFull" -Dtests.seed=D2644C8C3F710674 -Dtests.locale=zh-Hans-HK -Dtests.timezone=America/Goose_Bay -Druntime.java=25

Applicable branches:
9.3

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

junit.framework.AssertionFailedError: Unexpected exception type, expected EsRejectedExecutionException but got org.elasticsearch.ElasticsearchTimeoutException: java.util.concurrent.TimeoutException: Timeout waiting for task.

Issue Reasons:

• [9.3] 3 failures in test testExecute_Throws_WhenRateLimitedQueueIsFull (2.5% fail rate in 119 executions)
• [9.3] 2 failures in step part2 (10.0% fail rate in 20 executions)
• [9.3] 2 failures in pipeline elasticsearch-intake (10.0% fail rate in 20 executions)

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

[elasticsearchmachine]

This has been muted on branch 9.3

Mute Reasons:

• [9.3] 3 failures in test testExecute_Throws_WhenRateLimitedQueueIsFull (2.5% fail rate in 119 executions)
• [9.3] 2 failures in step part2 (10.0% fail rate in 20 executions)
• [9.3] 2 failures in pipeline elasticsearch-intake (10.0% fail rate in 20 executions)

Build Scans:

• elasticsearch-intake #33717 / part2
• elasticsearch-pull-request #115597 / part-2
• elasticsearch-intake #33554 / part2

[elasticsearchmachine]

Pinging @elastic/ml-core (Team:ML)