Build Scans:

• elasticsearch-periodic #9661 / openjdk17_checkpart1_java-fips-matrix
• elasticsearch-periodic-platform-support #9672 / rocky-9_platform-support-unix
• elasticsearch-pull-request #83119 / part-1
• elasticsearch-periodic-platform-support #9651 / sles-12_platform-support-unix
• elasticsearch-periodic-platform-support #9623 / oraclelinux-8_platform-support-unix
• elasticsearch-periodic-platform-support #9616 / oraclelinux-7_platform-support-unix
• elasticsearch-periodic #9591 / graalvm-ce17_checkpart1_java-matrix
• elasticsearch-pull-request #82799 / part-1
• elasticsearch-periodic-platform-support #9595 / sles-12_platform-support-unix
• elasticsearch-intake #26057 / part1

Reproduction Line:

./gradlew ":server:test" --tests "org.elasticsearch.index.engine.ThreadPoolMergeExecutorServiceDiskSpaceTests.testUnavailableBudgetBlocksNewMergeTasksFromStartingExecution" -Dtests.seed=9DE434F9A14A0F5E -Dtests.locale=xh -Dtests.timezone=Asia/Kamchatka -Druntime.java=17 -Dtests.fips.enabled=true

Applicable branches:
8.19

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

org.mockito.exceptions.verification.NeverWantedButInvoked: 
mergeTask.schedule();
Never wanted here:
-> at org.elasticsearch.index.engine.ThreadPoolMergeExecutorServiceDiskSpaceTests.lambda$testUnavailableBudgetBlocksNewMergeTasksFromStartingExecution$39(ThreadPoolMergeExecutorServiceDiskSpaceTests.java:845)
But invoked here:
-> at org.elasticsearch.index.engine.ThreadPoolMergeExecutorService.lambda$enqueueMergeTaskExecution$11(ThreadPoolMergeExecutorService.java:330) with arguments: []

Issue Reasons:

• [8.19] 2 consecutive failures in test testUnavailableBudgetBlocksNewMergeTasksFromStartingExecution
• [8.19] 12 failures in test testUnavailableBudgetBlocksNewMergeTasksFromStartingExecution (1.7% fail rate in 723 executions)
• [8.19] 2 failures in step sles-12_platform-support-unix (10.5% fail rate in 19 executions)
• [8.19] 2 failures in step part1 (5.7% fail rate in 35 executions)
• [8.19] 2 failures in step part-1 (2.9% fail rate in 70 executions)
• [8.19] 3 failures in pipeline elasticsearch-periodic (14.3% fail rate in 21 executions)
• [8.19] 5 failures in pipeline elasticsearch-periodic-platform-support (23.8% fail rate in 21 executions)
• [8.19] 2 failures in pipeline elasticsearch-intake (5.7% fail rate in 35 executions)
• [8.19] 2 failures in pipeline elasticsearch-pull-request (2.9% fail rate in 69 executions)

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