Return-Path: Delivered-To: apmail-activemq-users-archive@www.apache.org Received: (qmail 32166 invoked from network); 23 Apr 2009 12:24:32 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 23 Apr 2009 12:24:32 -0000 Received: (qmail 68324 invoked by uid 500); 23 Apr 2009 12:24:31 -0000 Delivered-To: apmail-activemq-users-archive@activemq.apache.org Received: (qmail 68298 invoked by uid 500); 23 Apr 2009 12:24:31 -0000 Mailing-List: contact users-help@activemq.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: users@activemq.apache.org Delivered-To: mailing list users@activemq.apache.org Received: (qmail 68288 invoked by uid 99); 23 Apr 2009 12:24:31 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 23 Apr 2009 12:24:31 +0000 X-ASF-Spam-Status: No, hits=1.4 required=10.0 tests=FORGED_YAHOO_RCVD,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of lists@nabble.com designates 216.139.236.158 as permitted sender) Received: from [216.139.236.158] (HELO kuber.nabble.com) (216.139.236.158) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 23 Apr 2009 12:24:21 +0000 Received: from isper.nabble.com ([192.168.236.156]) by kuber.nabble.com with esmtp (Exim 4.63) (envelope-from ) id 1LwxyC-0003Hx-2H for users@activemq.apache.org; Thu, 23 Apr 2009 05:24:00 -0700 Message-ID: <23195819.post@talk.nabble.com> Date: Thu, 23 Apr 2009 05:24:00 -0700 (PDT) From: Benoitx To: users@activemq.apache.org Subject: Re: Cannot cast to Command... In-Reply-To: <36e91d9d0904230136w6d1f1dafw7904f01ca962c54f@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Nabble-From: benoitx@yahoo.com References: <23175779.post@talk.nabble.com> <36e91d9d0904230136w6d1f1dafw7904f01ca962c54f@mail.gmail.com> X-Virus-Checked: Checked by ClamAV on apache.org Hi Thanks for the link... Unfortunately, the "cannot cast" exception still happens on Ubuntu Server 8.10 32b, even with 5.3-SNAPSHOT. The app is well behaved on OpenSolaris, XP 32, Vista, etc but the following seems to happen EVERY MINUTE with AciveMQ trying to establish a connection... We're trying to establish a TCP connection on a port but (catch-22) the second application is not there initially. This is working fine in many environment but not Ubuntu apperently... unless it is due to us using VMWare? Any suggestion would be greatly appreciated... 1/ What is the root cause of that problem? 2/ Is there a patch? 3/ If the app was not logging an ERROR for each of those... would it work when all apps are running? Thanks! Benoit 2009-04-23 13:03:53,776 INFO [network.DiscoveryNetworkConnector#?] (Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@139d891:) Establishing network connection from vm://appendium-jboss-server to tcp://localhost:27000 2009-04-23 13:03:53,778 DEBUG [tcp.TcpTransport#?] (Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@139d891:) Stopping transport tcp://null:0 2009-04-23 13:03:53,779 DEBUG [broker.TransportConnection#?] (ActiveMQ Transport Initiator: vm://appendium-jboss-server#18:) stop() called in the middle of start(). Delaying... 2009-04-23 13:03:53,792 WARN [network.DiscoveryNetworkConnector#?] (Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@139d891:) Could not start network bridge between: vm://appendium-jboss-server and: tcp://localhost:27000 due to: java.net.ConnectException: Connection refused 2009-04-23 13:03:53,792 DEBUG [network.DiscoveryNetworkConnector#?] (Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@139d891:) Start failure exception: java.net.ConnectException: Connection refused java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:519) at org.apache.activemq.transport.tcp.TcpTransport.connect(TcpTransport.java:435) at org.apache.activemq.transport.tcp.TcpTransport.doStart(TcpTransport.java:401) at org.apache.activemq.util.ServiceSupport.start(ServiceSupport.java:53) at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:57) at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:57) at org.apache.activemq.transport.WireFormatNegotiator.start(WireFormatNegotiator.java:72) at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:57) at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:57) at org.apache.activemq.network.DemandForwardingBridgeSupport.start(DemandForwardingBridgeSupport.java:225) at org.apache.activemq.network.DiscoveryNetworkConnector.onServiceAdd(DiscoveryNetworkConnector.java:114) at org.apache.activemq.transport.discovery.simple.SimpleDiscoveryAgent$1.run(SimpleDiscoveryAgent.java:165) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) 2009-04-23 13:03:53,792 DEBUG [network.DemandForwardingBridge#?] (Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@139d891:) stopping appendium-jboss-server bridge to Unknown is disposed already ? false 2009-04-23 13:03:53,793 DEBUG [network.DemandForwardingBridge#?] (NetworkBridge:) Caught exception sending shutdown org.apache.activemq.transport.TransportDisposedIOException: Transport disposed. at org.apache.activemq.transport.vm.VMTransport.oneway(VMTransport.java:74) at org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:40) at org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60) at org.apache.activemq.network.DemandForwardingBridgeSupport$5.run(DemandForwardingBridgeSupport.java:371) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) 2009-04-23 13:03:53,795 INFO [network.DemandForwardingBridge#?] (Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@139d891:) appendium-jboss-server bridge to Unknown stopped 2009-04-23 13:03:53,793 DEBUG [broker.TransportConnection#?] (ActiveMQ Transport Initiator: vm://appendium-jboss-server#18:) Calling the delayed stop() 2009-04-23 13:03:53,797 DEBUG [simple.SimpleDiscoveryAgent#?] (Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@32cd7f:) Failure occured soon after the discovery event was generated. It will be clasified as a connection failure: org.apache.activemq.transport.discovery.simple.SimpleDiscoveryAgent$SimpleDiscoveryEvent@122e0b3 2009-04-23 13:03:53,824 DEBUG [simple.SimpleDiscoveryAgent#?] (Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@32cd7f:) Waiting 30000 ms before attepting to reconnect. 2009-04-23 13:03:53,824 DEBUG [broker.TransportConnection#?] (ActiveMQ Transport Stopper: vm://appendium-jboss-server#18:) Stopping connection: vm://appendium-jboss-server#18 2009-04-23 13:03:53,859 DEBUG [broker.TransportConnection#?] (ActiveMQ Transport Stopper: vm://appendium-jboss-server#18:) Stopped transport: vm://appendium-jboss-server#18 2009-04-23 13:03:53,862 DEBUG [broker.TransportConnection#?] (ActiveMQ Transport Stopper: vm://appendium-jboss-server#18:) Connection Stopped: vm://appendium-jboss-server#18 2009-04-23 13:03:53,863 ERROR [broker.TransportConnector#?] (ActiveMQ Transport Initiator: vm://appendium-jboss-server#18:) Could not accept connection : java.lang.Object cannot be cast to org.apache.activemq.command.Command 2009-04-23 13:03:53,863 DEBUG [broker.TransportConnector#?] (ActiveMQ Transport Initiator: vm://appendium-jboss-server#18:) Reason: java.lang.Object cannot be cast to org.apache.activemq.command.Command java.lang.ClassCastException: java.lang.Object cannot be cast to org.apache.activemq.command.Command at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:89) at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:68) at org.apache.activemq.transport.vm.VMTransport.start(VMTransport.java:126) at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:57) at org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:57) at org.apache.activemq.broker.TransportConnection.start(TransportConnection.java:880) at org.apache.activemq.broker.TransportConnector$1$1.run(TransportConnector.java:213) Dejan Bosanac wrote: > > Hi Benoit, > > try this location > https://repository.apache.org/content/repositories/snapshots/org/apache/activemq/activemq-ra/5.3-SNAPSHOT/ > > Cheers > -- > Dejan Bosanac > > Open Source Integration - http://fusesource.com/ > ActiveMQ in Action - http://www.manning.com/snyder/ > Blog - http://www.nighttale.net > > > On Wed, Apr 22, 2009 at 7:38 PM, Benoitx wrote: > >> >> Hi >> >> We've installed our application on Ubuntu Server 8.10; our app uses >> ActiveMQ >> 5.2 and was well behaved so far... >> >> The Ubuntu environment seems to throw an awful lot of unhelpful messages: >> >> Could not accept connection : java.lang.Object cannot be cast to >> org.apache.activemq.command.Command >> >> I have noticed the JIRA 2092 >> https://issues.apache.org/activemq/browse/AMQ-2092 >> Which seems to imply that a better error message is possible. >> >> It may help us to figure out what is happening and why we suddenly get >> all >> those errors (1 every minute!) Has anyone experienced these on Ubuntu >> server? >> >> We're using JDK 1.6.0_10. >> >> So I decided to try 5.3-SNAPSHOT and downloaded the app here: >> >> https://repository.apache.org/content/repositories/snapshots/org/apache/activemq/apache-activemq/5.3-SNAPSHOT/ >> >> It does not however seem to contain the activemq-ra-5.3-SNAPSHOT.jar >> which >> I >> need for embedding ActiveMQ in my JBoss. >> >> Where could I find it without having to rebuild the lot... >> >> Thanks >> >> Benoit. >> >> ----- >> Thanks & Regards, >> >> Benoit >> >> http://www.Appendium.com http://objectlab.blogspot.com >> >> -- >> View this message in context: >> http://www.nabble.com/where-is-activemq-ra-fro-5.3-SNAPSHOT--tp23175779p23175779.html >> Sent from the ActiveMQ - User mailing list archive at Nabble.com. >> >> > > > ----- > Dejan Bosanac > > Open Source Integration - http://fusesource.com/ > ActiveMQ in Action - http://www.manning.com/snyder/ > Blog - http://www.nighttale.net > ----- Thanks & Regards, Benoit http://www.Appendium.com http://objectlab.blogspot.com -- View this message in context: http://www.nabble.com/where-is-activemq-ra-fro-5.3-SNAPSHOT--tp23175779p23195819.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.