Hi - I'm doing some Artemis testing. I have a Jepsen process that spawns
10 threads, each of which connects to the same queue using the name
"dynamicQueues/testQueue"
And I get an exception on one of the threads:
javax.naming.NamingException: Something already bound at testQueue
at
org.apache.activemq.artemis.jndi.ReadOnlyContext.internalBind(ReadOnlyContext.java:162)
at
org.apache.activemq.artemis.jndi.LazyCreateContext.lookup(LazyCreateContext.java:34)
at
org.apache.activemq.artemis.jndi.ReadOnlyContext.lookup(ReadOnlyContext.java:281)
at
org.apache.activemq.artemis.jndi.ReadOnlyContext.lookup(ReadOnlyContext.java:248)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
This looks identical to the problem described in this thread from 2009:
http://blog.gmane.org/gmane.comp.java.activemq.user/month=20090101/page=39
"Looks like a concurrency bug we should work around. In the mean time -
> how about adding a synchronized block around looking up a queue in
> JNDI?"
I can easily avoid this - I was planning to ditch JNDI anyway - but I
wonder if someone should think about fixing it...
- Korny
--
Kornelis Sietsma korny at my surname dot com http://korny.info
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