Build Scans:

• elasticsearch-pull-request #83399 / part-1
• elasticsearch-intake #26235 / part1
• elasticsearch-intake #26192 / part1

Reproduction Line:

./gradlew ":server:internalClusterTest" --tests "org.elasticsearch.index.mapper.vectors.DenseVectorFieldIndexTypeUpdateIT.testDenseVectorMappingUpdate {initialType=int4_flat updateType=int8_hnsw}" -Dtests.seed=16D9B23857287FD8 -Dtests.locale=sc-IT -Dtests.timezone=NST -Druntime.java=24

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Count is 6 hits but 8 was expected.  Total shards: 2 Successful shards: 2 & 0 shard failures:

Issue Reasons:

• [main] 2 consecutive failures in test testDenseVectorMappingUpdate {initialType=int4_flat updateType=int8_hnsw}
• [main] 3 failures in test testDenseVectorMappingUpdate {initialType=int4_flat updateType=int8_hnsw} (4.3% fail rate in 70 executions)
• [main] 2 failures in step part1 (9.5% fail rate in 21 executions)
• [main] 2 failures in pipeline elasticsearch-intake (9.5% fail rate in 21 executions)

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