Curiously, the slow queue did not seem to throw this exception once the fast queue had finished its 500 messages. 2009-02-19 11:19:47,470 ERROR [ActiveMQSession] error dispatching message: javax.ejb.EJBException: Failed to acquire truss -f -o wh132.out WMSYantrabg WH15 wh132The "-f" means to follow any child processes that are spawned. Browse other questions tagged java java-ee jboss ejb-3.0 activemq or ask your own question. What it means: for some reason that first 30 bean instances were not released. http://qaisoftware.com/failed-to/failed-to-acquire-gss-api-credentials.html
So connection factory will *not* support failover 10:30:10,410 WARN [ConnectionFactoryJNDIMapper] supportsLoadBalancing attribute is true on connection factory: jboss.messaging.connectionfactory:service=ClusteredConnectionFactory but post office is non clustered. Is there any way to take stable Long exposure photos without using Tripod? Pi == 3.2 Word for unproportional punishment? How can I take a photo through trees but focus on an object behind the trees? A single word for "the space in between" Print all ASCII alphanumeric characters without using them What is the "crystal ball" in the meteorological station? http://stackoverflow.com/questions/7015583/ejbexception-failed-to-acquire-the-pool-semaphore
Truss will show all the system services that are being used as a result of the calls made in the application program. Exactly what is in this ear file you deployed? And you have reached a stage where all the pool size of 15 has exhausted for that MDB.
If possible, please identify config files to be updated. Re: EJBException: Failed to acquire the pool semaphore, stri jaikiran pai Jan 1, 2009 9:09 AM (in response to Paul Baker) After how many messages to the MDB does this exception You should program to the interface (MaterialDaoLocal)... Is it bad practice to use GET method as login username/password for administrators?
MessageDrivenBeans have an instance pool. Each program uses a different semaphore and the key used can be got from code. Then, I run 100 more jmeter threads again, but this time all lookups blows with "Fail to aquire pool semaphore, strictTimeout=-1" and the MBean for MyWorkerBean in jmx-console shows AvailableCount equals https://developer.jboss.org/thread/110628 Looking at your logs, it appears that each message processing in the onMessage takes around 10 or more minutes.
When a batch of JMS messages is delivered to an MDB in the quantity of the prefetch each are assigned an instance from this pool and are delivered to that instance Announcement Announcement Module Collapse No announcement yet. Which doesn't exactly mirror my own but is useful nevertheless :) –Mark McKenna May 13 '12 at 0:59 add a comment| up vote 0 down vote What jpredham says is correct. It should no longer register a Failed to Acquire semaphore error.
EDIT: Forgot to mention I'm using JBoss AS 5.1.0 java java-ee jboss ejb-3.0 activemq share|improve this question edited Aug 10 '11 at 18:21 asked Aug 10 '11 at 18:04 jpredham 1,5161832 If you find such a mail,Resolution: Ensure that the whse params SEM/SEMMAPFILE in 09289, point to the correct whse.map file. If not, check if you have the latest patches for your operating system for e.g. http://qaisoftware.com/failed-to/failed-to-acquire-org-gnome-displaymanager-ubuntu.html Encryption - How to claim authorship anonymously?
The "-o" directs the output to a file that you can examine (or that can be sent to Yantra Technical Support for assistance). Similar Threads JBoss/JPA/Spring Question - What is the JNDI Name for the EntityManager Runtime shutdown hook called, forceHalt: true & JBoss SHUTDOWN Unable to find this class..during messaging Runtime shutdown hook The exception is thrown in this line response = worker.execute(request); (still searching a solution...) Comment Cancel Post zefina Junior Member Join Date: Nov 2011 Posts: 3 #3 Nov 15th, 2011, 04:25
The original bug was for SLSB, but it still affects MDBs. The Ooh-Aah Cryptic Maze Can this number be written in (3^x) - 1 format? Each thread perform an EJB lookUp for myWorkerBean defined in my applicationContext.xml as follows HTML Code:
The other queue, the "slow" queue, takes about 5 seconds per message. How To Tell When Broccoli is Bad? Some quick algebra reveals that this will occurs, roughly speaking, when timeout < (prefetch x onMessageTime) / maxSize This assumes that messages are distributed instantaneously, and each onMessage takes the same http://qaisoftware.com/failed-to/failed-to-acquire-logminer-dictionary-lock.html Gliffy Diagrams Sort Name Modify Date Ascending Descending AttachmentsIssue Links is blocked by JBAS-1599 EJB Pools Strict Maximum Pool Permits Leak Closed Activity People Assignee: Unassigned Reporter: David Goodman Votes: 4
What are you doing in regards to messaging? The lookup occurs normally. Have you changed the messaging configuration in any way? Try JIRA - bug tracking software for your team.
In tuning this I decreased timeout in addition to decreasing prefetch substantially and increasing maxSize to keep messages on the queue for longer while maintaining my alert indicator for when onMessage Tags: None garrydias Junior Member Join Date: Sep 2011 Posts: 2 #2 Sep 14th, 2011, 02:19 PM Failed to acquire the pool semaphore in empty pool I made a mistake. Re: EJBException: Failed to acquire the pool semaphore, stri Paul Baker Jan 1, 2009 9:30 AM (in response to Paul Baker) That did not solve the problem :(The console log (below) Which was the last major war in which horse mounted cavalry actually participated in active fighting?
i'm facing a problem when looking up my bean in test phase. Not the answer you're looking for? One queue processes 2-3 messages per second, we will call this the "fast" queue. if you are on HP-UX 10 you need to get atleast to 10.20.52.2.If you are on the latest Unix patch you will need to take care of this problem in the
To stress this bean, I'm using a JMeter test case with 100 simultaneously threads. All Rights Reserved. I assume that JBoss AS starts just fine if the EAR is not deployed? The error "Failed to acquire pool semaphore" occurs at method invocation.
Join them; it only takes a minute: Sign up EJBException: Failed to acquire the pool semaphore up vote 2 down vote favorite 3 I'm occasionally getting the following EJB exception across