Garry Dias [http://community.jboss.org/people/garrydias] created the discussion "Re: Failed to acquire the pool semaphore in empty pool" To view the discussion, visit: http://community.jboss.org/message/626083#626083 -------------------------------------------------------------- Hi Pai... thnx for your reply everything starts in my webservice class MyWorkerWS: public interface MyWorkerInterface {     public WorkResponse execute(WorkRequest request); } @javax.jws.WebService(portName = "MyWorkerWSPort", name = "MyWorker", serviceName = "MyWorker") public class MyWorkerWS extends SpringSupport implements MyWorkerInterface {     @javax.jws.WebMethod(operationName = "execute")     @javax.jws.soap.SOAPBinding(parameterStyle = ParameterStyle.BARE)     @javax.jws.WebResult(name = "workResponse", partName = "workResponse", targetNamespace = "http://ws.working.my.com/")     public WorkResponse execute(         @javax.jws.WebParam(mode = Mode.IN, name = "work", partName = "work")         WorkRequest request)     {         final int startingDepth = NDC.getDepth();         WorkResponse response = null;         try {             //Here I´m looking up my bean via Spring             MyWorkerInterface worker = (MyWorkerInterface) super.getBeanFactory().getBean("myWorkerBean");                         //Sometimes it performs around 300ms and sometimes more than 20000ms             response = worker.execute(request);                    } catch (org.springframework.beans.BeansException beansException) {             LoggerHelper.error("Application error", beansException);         } catch (EJBException ejbException) {             final String errorMessage =                 org.apache.commons.lang.StringUtils.defaultString(ejbException.getMessage());                             if (errorMessage.startsWith("Failed to acquire the pool semaphore")) {                 // MyWorkerInterface.execute(WorkRequest) method is delayed for more than 20000ms.                 // When the execute method backs to its normal execution time this EJBException is still happening                 // but the pool seems to be empty                 LoggerHelper.error("Pool is full because MyWorkerInterface.execute(WorkRequest) is" +                         "taking more time than normal to perform.", ejbException);             }             else {                 LoggerHelper.error("ejb error", ejbException);             }         }         return response;     } } Spring support class public class SpringSupport {     protected final org.apache.log4j.Logger logger =         org.apache.log4j.Logger.getLogger(this.getClass());     @javax.annotation.Resource     private javax.xml.ws.WebServiceContext webServiceContext;         private org.springframework.context.ApplicationContext cachedApplicationContext;     protected org.springframework.beans.factory.BeanFactory getBeanFactory() {         if (cachedApplicationContext != null) {             return cachedApplicationContext;         }         if (webServiceContext == null) {             return null;         }         javax.xml.ws.handler.MessageContext messageContext = webServiceContext.getMessageContext();         if (messageContext == null) {             return null;         }         javax.servlet.ServletContext servletContext =             (javax.servlet.ServletContext) messageContext.get(                     javax.xml.ws.handler.MessageContext.SERVLET_CONTEXT);         if (servletContext == null) {             return null;         }         this.cachedApplicationContext =             (org.springframework.context.ApplicationContext) servletContext             .getAttribute(                     org.springframework.web.context.WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);         return cachedApplicationContext;     } } Bean class @Clustered @Local(MyWorkerInterface.class) @Stateless(name = "MyWorkerBean") @Interceptors(value = { SpringBeanAutowiringInterceptor.class, LoggingInterceptor.class }) @RolesAllowed(value = "client") @Pool(value = PoolDefaults.POOL_IMPLEMENTATION_STRICTMAX, maxSize = 30) public class MyWorkerBean implements MyWorkerInterface {     @RolesAllowed("client")     @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED)     public WorkResponse execute(final WorkRequest workRequest) {         long start = System.currentTimeMillis();                 WorkExchange exchange = new WorkExchange();         exchange.setWorkRequest(workRequest);                 // A JMSProducer is created to send exchange to a JMS queue         // A MDB class retrieve data from a third party webservice using WorkExchange.workRequest fields         // A JMSConsumer is created to retrieve exchange object when MDB ends                 LoggerUtil.info("Operation time: " + (System.currentTimeMillis() - start));                 // WorkExchange.workResopnse have been set by MDB         WorkResopnse response = exhange.getWorkResponse();                 return response;     } } Look up settings in Spring xml      <jee:local-slsb lookup-home-on-startup="false" id="myWorkerBean" business-interface="MyWorkerInterface"         jndi-name="MyWorkerBean/local" /> -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/626083#626083] Start a new discussion in EJB3 at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]