Josh Rosen created SPARK-11887:
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Summary: Close PersistenceEngine at end of tests
Key: SPARK-11887
URL: https://issues.apache.org/jira/browse/SPARK-11887
Project: Spark
Issue Type: Bug
Reporter: Josh Rosen
Assignee: Josh Rosen
In PersistenceEngineSuite, we do not call {{close()}} on the PersistenceEngine
at the end of the test. For the ZooKeeperPersistenceEngine, this causes us to
leak a ZooKeeperClient, causing the test logs to be spammed with connection
error messages from that client:
{code}
15/11/20 05:13:35.789
pool-1-thread-1-ScalaTest-running-PersistenceEngineSuite-SendThread(localhost:15741)
INFO ClientCnxn: Opening socket connection to server
localhost/127.0.0.1:15741. Will not attempt to authenticate using SASL (unknown
error)
15/11/20 05:13:35.790
pool-1-thread-1-ScalaTest-running-PersistenceEngineSuite-SendThread(localhost:15741)
WARN ClientCnxn: Session 0x15124ff48dd0000 for server null, unexpected error,
closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
{code}
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