KAFKA-17505: New consumer seekToBeginning/End should run in background thread #17230
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Jira: https://issues.apache.org/jira/browse/KAFKA-17505
Move
seekToBeginning/Endrun in background thread.This change will dealy subscribeState change so we leverage
cachedSubscriptionHasAllFetchPositionsto record app thread need to wait background thread wait new position.Committer Checklist (excluded from commit message)