Discussoes de Programacao e Tecnologia

Cluster de JBOSS

2 respostas
R
Rildlanster

Olá pessoal,

Estou precisando de orientação sobre um problema q estou enfrentando com um cluster de 2 máquinas de JBOSS 4.0.5 GA.

Tenhos as máquinas A e B. Quando preciso baixar uma das máquinas (digamos… a máquina A) do cluster não consigo subi-la novamente se não baixar também a máquina B e subir as duas juntas. Ou seja, isso torna o cluster inútil pois não consigo tolerância a falhas.
O erro acontece quando a máquina que está subindo tenta obter o estado inicial da outra máquina.

08:54:17,120 INFO  [TreeCache] TreeCache local address is sdfjboss03:33079

08:54:17,528 INFO  [TreeCache] viewAccepted(): [172.17.30.26:36417|3] [172.17.30.26:36417, sdfjboss03:33079]

08:54:24,635 INFO  [FRAG2] assembled_msg is [dst: 230.1.2.7:45577, src: 172.17.30.26:36417 (3 headers), size = 161736 bytes]

08:54:25,892 INFO  [FRAG2] assembled_msg is [dst: sdfjboss03:33079, src: 172.17.30.26:36417 (3 headers), size = 492095 bytes]

08:54:32,524 WARN  [ServiceController] Problem starting service jboss.cache:service=TomcatClusteringCache

org.jboss.cache.CacheException: Initial state transfer failed: Channel.getState() returned false

at org.jboss.cache.TreeCache.fetchStateOnStartup(TreeCache.java:3191)

at org.jboss.cache.TreeCache.startService(TreeCache.java:1429)

at org.jboss.cache.aop.PojoCache.startService(PojoCache.java:94)

at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)

at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)

at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)

at $Proxy0.start(Unknown Source)

at org.jboss.system.ServiceController.start(ServiceController.java:417)

at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy4.start(Unknown Source)

at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)

at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy8.deploy(Unknown Source)

at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)

at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)

at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)

at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)

at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)

at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)

at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)

at $Proxy0.start(Unknown Source)

at org.jboss.system.ServiceController.start(ServiceController.java:417)

at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy4.start(Unknown Source)

at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)

at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:766)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy5.deploy(Unknown Source)

at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)

at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)

at org.jboss.Main.boot(Main.java:200)

at org.jboss.Main$1.run(Main.java:490)

at java.lang.Thread.run(Thread.java:595)

08:54:33,009 WARN  [UDP] discarded message from different group (Tomcat-Cluster). Sender was 172.17.30.11:32769

08:54:34,573 INFO  [DefaultPartition] Initializing

08:54:39,168 INFO  [UDP] unicast sockets will use interface 172.17.30.28

No arquivo cluster-service.xml tenho a seguinte configuração:

[i] <attribute name=“StateTransferTimeout”>30000</attribute>

&lt;!-- The JGroups protocol configuration --&gt;
  &lt;attribute name="PartitionConfig"&gt;
     &lt;!--
     The default UDP stack:
     - If you have a multihomed machine, set the UDP protocol's bind_addr attribute to the
     appropriate NIC IP address, e.g bind_addr="192.168.0.2".
     - On Windows machines, because of the media sense feature being broken with multicast
     (even after disabling media sense) set the UDP protocol's loopback attribute to true
  	--&gt;  
     &lt;Config&gt;
        &lt;UDP mcast_addr="${jboss.partition.udpGroup:228.1.2.3}" mcast_port="45566"
	bind_addr="192.168.0.1"
           ip_ttl="${jgroups.mcast.ip_ttl:8}" ip_mcast="true"
           mcast_recv_buf_size="2000000" mcast_send_buf_size="640000"
           ucast_recv_buf_size="2000000" ucast_send_buf_size="640000"
           loopback="false"/&gt;
        &lt;PING timeout="2000" num_initial_members="3"
           up_thread="true" down_thread="true"/&gt;
        &lt;MERGE2 min_interval="10000" max_interval="20000"/&gt;
        &lt;FD_SOCK down_thread="false" up_thread="false"/&gt;
        &lt;FD shun="true" up_thread="true" down_thread="true"
           timeout="10000" max_tries="5"/&gt;
        &lt;VERIFY_SUSPECT timeout="3000" num_msgs="3"
           up_thread="true" down_thread="true"/&gt;
        &lt;pbcast.NAKACK gc_lag="50" retransmit_timeout="300,600,1200,2400,4800"
           max_xmit_size="8192"
           up_thread="true" down_thread="true"/&gt;
        &lt;UNICAST timeout="300,600,1200,2400,4800" window_size="100" min_threshold="10"
           down_thread="true"/&gt;
        &lt;pbcast.STABLE desired_avg_gossip="20000" max_bytes="400000"
           up_thread="true" down_thread="true"/&gt;
        &lt;FRAG frag_size="8192"
           down_thread="true" up_thread="true"/&gt;
        &lt;pbcast.GMS join_timeout="5000" join_retry_timeout="2000"
           shun="true" print_local_addr="true"/&gt;
        &lt;pbcast.STATE_TRANSFER up_thread="true" down_thread="true"/&gt;
     &lt;/Config&gt;

[/i]

Esse erro acontece em produção (hehehe). Em ambiente de homologação não acontece mas consigo simular o problema diminuindo o StateTransferTimeout para 2, por exemplo. O arquivo cluster-service.xml é igual para produção e homologação. Já aumentei o valor do StateTransferTimeout em produção mas o erro persiste. Enfim, alguém já viu isso e sabe o q é?
(OBS.: Não existe firewall nenhum nas máquinas nem entre elas. JDK 1.5.0_11. linha de start do cluster ./run.sh -c all -b 172.17.30.28 )

Obrigado

Alura Desenvolvimento Back-End Java Sua Carreira em desenvolvimento back-end Java: dos fundamentos à arquitetura de sistemas...

2 Respostas

R
Rildlanster

waiting for a response…

R
Rildlanster

Volto a subir este tópico para tentar uma possibilidade a mais.

Acho q um jboss, qdo rodando em uma VM, pode lançar a exceção no getState() devido a falta de sincronia do relógio da VM. alguém roda jboss em VMs e em cluster com outras maquinas fora de VMs?

Criado 26 de abril de 2007
Ultima resposta 31 de jul. de 2007
Respostas 2
Participantes 1

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