[BUG] org.opensearch.backwards.MixedClusterClientYamlTestSuiteIT.test {p0=nodes.stats/20_response_filtering/Nodes Stats filtered using both includes and excludes filters} is flaky

[kotwanikunal]

Describe the bug
org.opensearch.backwards.MixedClusterClientYamlTestSuiteIT.test {p0=nodes.stats/20_response_filtering/Nodes Stats filtered using both includes and excludes filters} is flaky

To Reproduce
REPRODUCE WITH: ./gradlew ':qa:mixed-cluster:v2.11.0#mixedClusterTest' --tests "org.opensearch.backwards.MixedClusterClientYamlTestSuiteIT" -Dtests.method="test {p0=nodes.stats/11_indices_metrics/Metric - blank}" -Dtests.seed=2F3DFE87E8073580 -Dtests.security.manager=true -Dtests.jvm.argline="-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=64m" -Dtests.locale=zh-Hans-CN -Dtests.timezone=Asia/Tbilisi -Druntime.java=20

Expected behavior
Test to pass

Screenshots

java.lang.AssertionError: Failure at [nodes.stats/20_response_filtering:173]: field [nodes.$node_id.name] doesn't have a true value
Expected: not null
     but: was null

Host/Environment (please complete the following information):
Jenkins CI

Additional context

• https://build.ci.opensearch.org/job/gradle-check/25505/testReport/
• https://build.ci.opensearch.org/job/gradle-check/25494

[msfroh]

Taking a look -- not sure that this one is "flaky", since it seems to be failing pretty consistently. Checking to see if something legitimately broke.

[msfroh]

May have been fixed by 91821c7 ?

[msfroh]

Yeah -- I tried to reproduce a bunch of times on my machine but wasn't able to.

I locally reverted 91821c7, and I was able to reproduce the failure on my second attempt.

I think we can safely say that 91821c7 fixed this.