[CI] ES818HnswBinaryQuantizedVectorsFormatTests testRandomExceptions failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #5623 / almalinux-8-aarch64_checkpart1_platform-support-arm
• elasticsearch-periodic #5619 / openjdk21_checkpart1_java-matrix

Reproduction Line:

null

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.RuntimeException: MockDirectoryWrapper: cannot close: there are still 1 open files: {_15_ES818HnswBinaryQuantizedVectorsFormat_0.veb_temp_42.tmp=1}

Issue Reasons:

• [main] 2 failures in test testRandomExceptions (1.4% fail rate in 145 executions)

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

[elasticsearchmachine]

Pinging @elastic/es-search-relevance (Team:Search Relevance)

[benwtrent]

Reproduction:

./gradlew test --tests ES818HnswBinaryQuantizedVectorsFormatTests.testRandomExceptions -Dtests.seed=A571E0850B9E4531 -Dtests.locale=ar-LY -Dtests.timezone=America/Guadeloupe -Dtests.asserts=true -Dtests.file.encoding=UTF-8