[CI] ShardBulkInferenceActionFilterTests testExplicitNull {p0=true} failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-intake #20119 / part2
• elasticsearch-periodic-platform-support #7014 / almalinux-8-aarch64_checkpart2_platform-support-arm

Reproduction Line:

./gradlew ":x-pack:plugin:inference:test" --tests "org.elasticsearch.xpack.inference.action.filter.ShardBulkInferenceActionFilterTests.testExplicitNull {p0=false}" -Dtests.seed=4ACADDB0C64A1E44 -Dtests.locale=sbp-TZ -Dtests.timezone=Asia/Kuwait -Druntime.java=23

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.IllegalArgumentException: failed to parse value [0] for setting [indices.inference.batch_size], must be >= [1b]

Issue Reasons:

• [main] 2 failures in test testExplicitNull {p0=true} (0.8% fail rate in 257 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 main

Mute Reasons:

• [main] 2 failures in test testExplicitNull {p0=true} (0.8% fail rate in 257 executions)

Build Scans:

• elasticsearch-intake #20119 / part2
• elasticsearch-periodic-platform-support #7014 / almalinux-8-aarch64_checkpart2_platform-support-arm

[elasticsearchmachine]

Pinging @elastic/search-eng (Team:SearchOrg)

[elasticsearchmachine]

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

[Samiul-TheSoccerFan]

• Happening intermittent in CI and could not reproduce locally.
• Marking this test as medium risk with high priority, as it verifies the null behavior for semantic_text.
  cc: @Mikep86

[Mikep86]

Fixed by #125006