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Posted to yarn-dev@hadoop.apache.org by "Prabhu Joseph (Jira)" <ji...@apache.org> on 2020/03/12 17:02:00 UTC
[jira] [Created] (YARN-10194) YARN RMWebServices
/scheduler-conf/validate leaks ZK Connections
Prabhu Joseph created YARN-10194:
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Summary: YARN RMWebServices /scheduler-conf/validate leaks ZK Connections
Key: YARN-10194
URL: https://issues.apache.org/jira/browse/YARN-10194
Project: Hadoop YARN
Issue Type: Bug
Components: capacityscheduler
Affects Versions: 3.3.0
Reporter: Prabhu Joseph
Assignee: Prabhu Joseph
YARN RMWebServices /scheduler-conf/validate leaks ZK Connections. Validation API creates a new CapacityScheduler and missed to close after the validation. Every CapacityScheduler#init opens MutableCSConfigurationProvider which opens ZKConfigurationStore and creates a ZK Connection.
*ZK LOGS*
{code}
-03-12 16:45:51,881 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: [2 times] Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
2020-03-12 16:45:52,449 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
2020-03-12 16:45:52,710 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
2020-03-12 16:45:52,876 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: [4 times] Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
2020-03-12 16:45:53,068 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: [2 times] Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
2020-03-12 16:45:53,391 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: [2 times] Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
2020-03-12 16:45:54,008 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
2020-03-12 16:45:54,287 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
2020-03-12 16:45:54,483 WARN org.apache.zookeeper.server.NIOServerCnxnFactory: [4 times] Error accepting new connection: Too many connections from /172.27.99.64 - max is 60
{code}
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