HIVE-29651: Update ZookeeperExternalSessionsRegistryClient to handle …#6528

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tanishq-chugh wants to merge 17 commits into

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tanishq-chugh:zk-conc-issue

Commits on Jun 18, 2026

HIVE-29651: Update ZookeeperExternalSessionsRegistryClient to handle multiple HiveServer2 instances submitting DAGs concurrently to available Tez External Sessions
tanishq-chugh
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Fix formatting
tanishq-chugh
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Logging changes to address review comments
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Update timeout calculation in getSession to prevent overflow
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Refactor ClaimsPathListener to use in-place methods instead of a class definition
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Fix the FIFO test as per the review comment & remove leftover config change
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Address the cases of HS2-ZK connection getting lost / connection getting reconnected after being suspended
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Change the log line added to debug
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Fix formatting issues
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Address SonarQube issues - 1
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Logic to kill orphan DAGs left behind by crashed HS2
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Address Sonarqube - 2
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Update Mocks in TestTezTask as per the new code logic & Remove leftover from TestZookeeperExternalSessionsRegistryClient
tanishq-chugh
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Fix flakiness of newly added UT testFIFOSessionClaimsFromDifferentRegistries
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Address kill dag Race condition in TezExternalSessionState
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Address SonarQube - 2
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Address Co-pilot comments and fix the cases for default Sessions
tanishq-chugh
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