Build Scans:

• elasticsearch-periodic-platform-support #7014 / sles-15_platform-support-unix
• elasticsearch-pull-request #62626 / part-2
• elasticsearch-pull-request #62097 / part-2

Reproduction Line:

./gradlew ":x-pack:plugin:ilm:internalClusterTest" --tests "org.elasticsearch.xpack.ilm.DataStreamAndIndexLifecycleMixingTests.testIndexTemplateSwapsILMForDataStreamLifecycle" -Dtests.seed=1DFFCE84BC4BFB0A -Dtests.locale=ks -Dtests.timezone=Canada/Saskatchewan -Druntime.java=23

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.util.concurrent.ExecutionException: [.ds-datastream-uqwigbyzzdzpjs-2025.03.14-000003] org.elasticsearch.index.IndexNotFoundException: no such index [.ds-datastream-uqwigbyzzdzpjs-2025.03.14-000003]

Issue Reasons:

• [main] 3 failures in test testIndexTemplateSwapsILMForDataStreamLifecycle (0.7% fail rate in 446 executions)
• [main] 2 failures in step part-2 (1.1% fail rate in 175 executions)
• [main] 2 failures in pipeline elasticsearch-pull-request (1.1% fail rate in 178 executions)

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