[jira] [Created] (QPID-7967) [Java Broker] Internal Oracle TLS classes leaked per connection when connecting the AMQP 1.0 Qpid JMS Client

["Keith Wall (JIRA)" <ji...@apache.org>]

Keith Wall created QPID-7967:
--------------------------------

             Summary: [Java Broker] Internal Oracle TLS classes leaked per connection when connecting the AMQP 1.0 Qpid JMS Client
                 Key: QPID-7967
                 URL: https://issues.apache.org/jira/browse/QPID-7967
             Project: Qpid
          Issue Type: Bug
          Components: Java Broker
         Environment: Java version "1.8.0_144"
Mac OS X 10.12.6
            Reporter: Keith Wall


Performing leak analysis shows that the following internal TLS classes are leaked, once per TLS connection, when connecting using the Qpid JMS Client 0.26.0 over AMQP 1.0 with TLS. The same leak was not apparent when connecting the older Qpid JMS AMQP 0-x client.

The classes are:

# sun.security.ssl.SessionId
# sun.security.ssl.SSLSessionImpl

The test is run with the following command:
{code}
mvn exec:java -pl tools  -Dstresstest=qpid-jms-client  -Dexec.args="jndiProperties=stress-test-client-qpid-jms-client.properties jndiConnectionFactory=qpidConnectionFactoryTls connections=100" -Djavax.net.ssl.trustStore=/Users/keith/Downloads/myks.jks -Dqpid-jms-client-version=0.26.0
{code}

It seems there is session caching going on within the JDK.  The cache size and timeout looks to be tuneable with {{javax.net.ssl.SSLContext#getServerSessionContext}}.  The default timeout is 86400(seconds?) and a session cache size of 0 (unbounded?). I suspect if Broker had a sufficiently large number of TLS connections over a short time period, memory may be exhausted.

I don't currently understand why the behaviour is different between the old/new JMS client.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org