[CI] XPackRestIT test {p0=transform/transforms_stats/Test get multiple transform stats} failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #7545 / openjdk23_entitlements_true_checkpart3_java-matrix
• elasticsearch-pull-request #66846 / part-3
• elasticsearch-intake #21480 / part3

Reproduction Line:

./gradlew ":x-pack:plugin:yamlRestTest" --tests "org.elasticsearch.xpack.test.rest.XPackRestIT.test {p0=transform/transforms_stats/Test get multiple transform stats}" -Dtests.seed=627FA7AF8EF9853E -Dtests.jvm.argline="-Des.entitlements.enabled=true" -Dtests.locale=bs-Cyrl-BA -Dtests.timezone=America/Dominica -Druntime.java=23

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Failure at [transform/transforms_stats:52]: expected [2xx] status code but api [transform.start_transform] returned [408 Request Timeout] [{"error":{"root_cause":[{"type":"status_exception","reason":"Starting transform [airline-transform-stats] timed out after [30s]","stack_trace":"org.elasticsearch.ElasticsearchStatusException: Starting transform [airline-transform-stats] timed out after [30s]\n\tat org.elasticsearch.transform@9.1.0-SNAPSHOT/org.elasticsearch.xpack.transform.action.TransportStartTransformAction$2.onTimeout(TransportStartTransformAction.java:364)\n\tat org.elasticsearch.server@9.1.0-SNAPSHOT/org.elasticsearch.persistent.PersistentTasksService$1.onTimeout(PersistentTasksService.java:217)\n\tat org.elasticsearch.server@9.1.0-SNAPSHOT/org.elasticsearch.cluster.ClusterStateObserver$ContextPreservingListener.onTimeout(ClusterStateObserver.java:390)\n\tat org.elasticsearch.server@9.1.0-SNAPSHOT/org.elasticsearch.cluster.ClusterStateObserver$Observer
[truncated]

Issue Reasons:

• [main] 3 failures in test test {p0=transform/transforms_stats/Test get multiple transform stats} (0.4% fail rate in 730 executions)

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

[elasticsearchmachine]

This has been muted on branch main

Mute Reasons:

• [main] 3 failures in test test {p0=transform/transforms_stats/Test get multiple transform stats} (0.4% fail rate in 730 executions)

Build Scans:

• elasticsearch-periodic #7545 / openjdk23_entitlements_true_checkpart3_java-matrix
• elasticsearch-pull-request #66846 / part-3
• elasticsearch-intake #21480 / part3

[elasticsearchmachine]

Pinging @elastic/es-search-relevance (Team:Search Relevance)

[elasticsearchmachine]

Pinging @elastic/ml-core (Team:ML)

[prwhelan]

XPackRestIT > test {p0=transform/transforms_stats/Test get multiple transform stats} FAILED	
    java.lang.AssertionError: 1 active tasks found:	
    reindex-data-stream[c]         YwAZhzuKSXqoljIFGsFAwA:31604 cluster:43                   persistent 1744053641936 19:20:41 15m         127.0.0.1 yamlRestTest-0 Reindexing data stream my-data-stream	
     expected:<0> but was:<1>

Fixed by #129851

[prwhelan]

Verified

./gradlew ":x-pack:plugin:yamlRestTest" --tests "org.elasticsearch.xpack.test.rest.XPackRestIT" -Dtests.method="test {p0=transform/transforms_stats/Test get multiple transform stats*}" -Dtests.iters=10000