Build Scans:

• elasticsearch-intake #26231 / part1
• elasticsearch-intake #26218 / part1

Reproduction Line:

./gradlew ":server:internalClusterTest" --tests "org.elasticsearch.index.mapper.vectors.DenseVectorFieldIndexTypeUpdateIT.testDenseVectorMappingUpdate {initialType=hnsw updateType=int4_hnsw}" -Dtests.seed=9F21AB615CDED12D -Dtests.locale=pt-MO -Dtests.timezone=Asia/Damascus -Druntime.java=24

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Count is 4 hits but 5 was expected.  Total shards: 5 Successful shards: 5 & 0 shard failures:

Issue Reasons:

• [main] 2 failures in test testDenseVectorMappingUpdate {initialType=hnsw updateType=int4_hnsw} (3.0% fail rate in 66 executions)
• [main] 2 failures in step part1 (10.5% fail rate in 19 executions)
• [main] 2 failures in pipeline elasticsearch-intake (10.5% fail rate in 19 executions)

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