Build Scans:

• elasticsearch-periodic-platform-support #9689 / rhel-9_platform-support-unix
• elasticsearch-pull-request #83409 / part-1
• elasticsearch-pull-request #83357 / part-1

Reproduction Line:

./gradlew ":server:internalClusterTest" --tests "org.elasticsearch.index.mapper.vectors.DenseVectorFieldIndexTypeUpdateIT.testDenseVectorMappingUpdate {initialType=flat updateType=int8_hnsw}" -Dtests.seed=4213EC83CD7C633 -Dtests.locale=mai -Dtests.timezone=America/Inuvik -Druntime.java=24

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Count is 5 hits but 8 was expected.  Total shards: 1 Successful shards: 1 & 0 shard failures:

Issue Reasons:

• [main] 3 failures in test testDenseVectorMappingUpdate {initialType=flat updateType=int8_hnsw} (3.4% fail rate in 89 executions)
• [main] 2 failures in step part-1 (3.6% fail rate in 56 executions)
• [main] 2 failures in pipeline elasticsearch-pull-request (3.6% fail rate in 55 executions)

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