[CI] DesiredBalanceReconcilerMetricsIT testDesiredBalanceMetrics failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #4879 / openjdk23_checkpart1_java-matrix
• elasticsearch-pull-request #41449 / part-1
• elasticsearch-pull-request #41182 / part-1

Reproduction Line:

./gradlew ":server:internalClusterTest" --tests "org.elasticsearch.cluster.routing.allocation.allocator.DesiredBalanceReconcilerMetricsIT.testDesiredBalanceMetrics" -Dtests.seed=B58F2379C103AA4 -Dtests.locale=ks-Arab-IN -Dtests.timezone=Etc/GMT+7 -Druntime.java=23

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: null

Issue Reasons:

• [main] 3 failures in test testDesiredBalanceMetrics (1.0% fail rate in 294 executions)
• [main] 2 failures in step part-1 (2.0% fail rate in 98 executions)
• [main] 2 failures in pipeline elasticsearch-pull-request (2.0% fail rate in 98 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 testDesiredBalanceMetrics (1.0% fail rate in 294 executions)
• [main] 2 failures in step part-1 (2.0% fail rate in 98 executions)
• [main] 2 failures in pipeline elasticsearch-pull-request (2.0% fail rate in 98 executions)

Build Scans:

• elasticsearch-periodic #4879 / openjdk23_checkpart1_java-matrix
• elasticsearch-pull-request #41449 / part-1
• elasticsearch-pull-request #41182 / part-1

[elasticsearchmachine]

Pinging @elastic/es-distributed-coordination (Team:Distributed Coordination)