Eric Yang created YARN-8428:
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Summary: YARN service has ZooKeeper connection leaks
Key: YARN-8428
URL: https://issues.apache.org/jira/browse/YARN-8428
Project: Hadoop YARN
Issue Type: Bug
Components: yarn-native-services
Affects Versions: 3.1.0
Reporter: Eric Yang
There are two leaks discovered during stress test. First, YARN service
application master uses RegistryDNS to create DNS record for YARN service.
Data is first persisted on ZooKeeper, and RegistryDNS will lookup data in
ZooKeeper to create DNS entries. YARN service AM does not close ZooKeeper
connection after the record has been created. Second, when deleting DNS record
from ZooKeeper, ZooKeeper connection is left open.
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