[CI] DocsClientYamlTestSuiteIT test {yaml=reference/rest-api/watcher/put-watch/line_120} failing

Build Scans:

Reproduction Line:

./gradlew ':docs:yamlRestTest' --tests "org.elasticsearch.smoketest.DocsClientYamlTestSuiteIT.test {yaml=reference/rest-api/watcher/put-watch/line_120}" -Dtests.seed=B9283981C75EF538 -Dtests.locale=en-BS -Dtests.timezone=Asia/Yerevan -Druntime.java=22

Applicable branches: 8.15

Reproduces locally?: N/A

Failure History: See dashboard&_a=(controlGroupState:(initialChildControlState:('0c0c9cb8-ccd2-45c6-9b13-96bac4abc542':(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,fieldName:task.keyword,order:0,selectedOptions:!(),title:'GradleTask',type:optionsListControl),'4e6ad9d6-6fdc-4fcc-bf1a-aa6ca79e0850':(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,fieldName:className.keyword,order:1,selectedOptions:!(org.elasticsearch.smoketest.DocsClientYamlTestSuiteIT),title:'Suite',type:optionsListControl),'144933da-5c1b-4257-a969-7f43455a7901':(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,fieldName:name.keyword,order:2,selectedOptions:!(test%20%7Byaml%3Dreference%2Frest-api%2Fwatcher%2Fput-watch%2Fline_120%7D),title:'Test',type:optionsListControl)))))

Failure Message:

org.elasticsearch.client.WarningFailureException: method [DELETE], host [http://[::1]:43119], URI [*,-.ds-ilm-history-*,-.ds-.slm-history-*,-.ds-.watcher-history-*?expand_wildcards=open%2Cclosed%2Chidden], status line [HTTP/1.1 200 OK]
Warnings: [this request accesses system indices: [.triggered_watches], but in a future major version, direct access to system indices will be prevented by default]
{"acknowledged":true}

Issue Reasons:

[8.15] 2 failures in test test {yaml=reference/rest-api/watcher/put-watch/line_120} (0.3% fail rate in 647 executions)
[8.15] 2 failures in pipeline elasticsearch-periodic-platform-support (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.

elastic / elasticsearch

[CI] DocsClientYamlTestSuiteIT test {yaml=reference/rest-api/watcher/put-watch/line_120} failing #116884