[BUG] Flaky test TieredSpilloverCacheStatsIT.testTierLevelAggregation

[shourya035]

Describe the bug

Test TieredSpilloverCacheStatsIT.testTierLevelAggregation is flaky

Related component

Search:Aggregations

To Reproduce

./gradlew ':modules:cache-common:internalClusterTest' --tests "org.opensearch.cache.common.tier.TieredSpilloverCacheStatsIT.testTierLevelAggregation" -Dtests.seed=24EE8C20A6367412 -Dtests.security.manager=true -Dtests.jvm.argline="-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=64m" -Dtests.locale=ro-RO -Dtests.timezone=Asia/Urumqi -Druntime.java=21
NOTE: leaving temporary files on disk at: /var/jenkins/workspace/gradle-check/search/modules/cache-common/build/testrun/internalClusterTest/temp/org.opensearch.cache.common.tier.TieredSpilloverCacheStatsIT_24EE8C20A6367412-001
NOTE: test params are: codec=Asserting(Lucene99): {index_uuid=PostingsFormat(name=Asserting), type=PostingsFormat(name=Asserting)}, docValues:{}, maxPointsInLeafNode=1708, maxMBSortInHeap=7.988884308016099, sim=Asserting(RandomSimilarity(queryNorm=true): {}), locale=ro-RO, timezone=Asia/Urumqi

Jenkins build: https://build.ci.opensearch.org/job/gradle-check/39959/

Expected behavior

Test should pass always

Additional Details

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• Version [e.g. 22]

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[sgup432]

@peteralfonsi Can you take a look at this one?