How to avoid starting JBoss AS, if already running

[mrfarhankhan]

Hello,

I want to configure my JBoss so that if another instance is laready running on the same machine, then it should not start. How can I do that ??? Currently, it start another instance on some other port.

Thanks in advance
Farhan !

[jaikiran]

"mrfarhankhan" wrote:
Hello,

Currently, it start another instance on some other port.

Are you sure it starts successfully? I would expect the second instance to fail to start when the first one is already running (and if you have not configured a different set of ports for the second instance).

[mrfarhankhan]

Thanks for your prompt response. Please see the server logs as following. My requirement is that if the server is already running, then another instance should not start, instead it should give a message and exit.

================================================
I Depend On:
jboss.mq:service=DestinationManager

ObjectName: jboss.mq.destination:service=Queue,name=B
State: CONFIGURED
I Depend On:
jboss.mq:service=DestinationManager

ObjectName: jboss.mq.destination:service=Queue,name=C
State: CONFIGURED
I Depend On:
jboss.mq:service=DestinationManager

ObjectName: jboss.mq.destination:service=Queue,name=D
State: CONFIGURED
I Depend On:
jboss.mq:service=DestinationManager

ObjectName: jboss.mq.destination:service=Queue,name=ex
State: CONFIGURED
I Depend On:
jboss.mq:service=DestinationManager

ObjectName: jboss.mq:service=Invoker
State: CONFIGURED
I Depend On:
jboss.mq:service=TracingInterceptor
jboss:service=Naming
Depends On Me:
jboss.mq:service=InvocationLayer,type=HTTP
jboss.mq:service=InvocationLayer,type=JVM
jboss.mq:service=InvocationLayer,type=UIL2

ObjectName: jboss.mq:service=TracingInterceptor
State: CONFIGURED
I Depend On:
jboss.mq:service=SecurityManager
Depends On Me:
jboss.mq:service=Invoker

ObjectName: jboss.mq:service=SecurityManager
State: CONFIGURED
I Depend On:
jboss.security:service=JaasSecurityManager
jboss.mq:service=DestinationManager
Depends On Me:
jboss.mq.destination:service=Topic,name=testTopic
jboss.mq.destination:service=Topic,name=securedTopic
jboss.mq.destination:service=Topic,name=testDurableTopic
jboss.mq.destination:service=Queue,name=testQueue
jboss.mq:service=TracingInterceptor
jboss.mq.destination:service=Queue,name=DLQ

ObjectName: jboss.mq.destination:service=Queue,name=DLQ
State: CONFIGURED
I Depend On:
jboss.mq:service=DestinationManager
jboss.mq:service=SecurityManager

ObjectName: jboss.mq:service=InvocationLayer,type=JVM
State: CONFIGURED
I Depend On:
jboss.mq:service=Invoker

ObjectName: jboss.mq:service=InvocationLayer,type=UIL2
State: CONFIGURED
I Depend On:
jboss.mq:service=Invoker

ObjectName: jboss.mq:service=InvocationLayer,type=UIL
State: CONFIGURED
I Depend On:
jboss:service=Naming

ObjectName: jboss.mq:service=InvocationLayer,type=UILXA
State: CONFIGURED
I Depend On:
jboss:service=Naming

ObjectName: jboss.mq:service=InvocationLayer,type=UIL2,alias=UIL2ConnectionFacto
ry
State: CONFIGURED
I Depend On:
jboss:service=Naming

ObjectName: jboss.mq:service=InvocationLayer,type=UIL2XA,alias=UIL2XAConnectionF
actory
State: CONFIGURED
I Depend On:
jboss:service=Naming

ObjectName: jboss.jms:alias=QueueConnectionFactory
State: CONFIGURED
I Depend On:
jboss:service=Naming

ObjectName: jboss.jms:alias=TopicConnectionFactory
State: CONFIGURED
I Depend On:
jboss:service=Naming

ObjectName: jboss.jmx:type=adaptor,name=Invoker,protocol=jrmp,service=proxyFacto
ry
State: CONFIGURED
I Depend On:
jboss:service=invoker,type=jrmp
jboss.jmx:type=adaptor,name=Invoker
jboss:service=Naming
Depends On Me:
jboss.admin:service=PluginManager
jboss.jmx:type=adaptor,name=MBeanProxyRemote,protocol=jrmp

ObjectName: jboss.jmx:type=adaptor,name=MBeanProxyRemote,protocol=jrmp
State: CONFIGURED
I Depend On:
jboss.jmx:type=adaptor,name=Invoker,protocol=jrmp,service=proxyFactory

ObjectName: jboss.jmx:alias=jmx/rmi/RMIAdaptor
State: CONFIGURED
I Depend On:
jboss:service=Naming

ObjectName: jboss:service=Mail
State: CONFIGURED
I Depend On:
jboss:service=Naming

ObjectName: jboss:service=Hypersonic,database=localDB
State: FAILED
Reason: java.sql.SQLException: The database is already in use by another proce
ss: org.hsqldb.persist.NIOLockFile@e69accf7[file =C:\jboss-4.2.2.GA\server\defau
lt\data\hypersonic\localDB.lck, exists=true, locked=false, valid=false, fl =null
]: java.lang.Exception: java.io.IOException: The process cannot access the file
because another process has locked a portion of the file : C:\jboss-4.2.2.GA\se
rver\default\data\hypersonic\localDB.lck
Depends On Me:
jboss.jca:service=ManagedConnectionFactory,name=DefaultDS

--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
ObjectName: jboss:service=Hypersonic,database=localDB
State: FAILED
Reason: java.sql.SQLException: The database is already in use by another proce
ss: org.hsqldb.persist.NIOLockFile@e69accf7[file =C:\jboss-4.2.2.GA\server\defau
lt\data\hypersonic\localDB.lck, exists=true, locked=false, valid=false, fl =null
]: java.lang.Exception: java.io.IOException: The process cannot access the file
because another process has locked a portion of the file : C:\jboss-4.2.2.GA\se
rver\default\data\hypersonic\localDB.lck
Depends On Me:
jboss.jca:service=ManagedConnectionFactory,name=DefaultDS

ObjectName: jboss.remoting:service=Connector,transport=socket
State: FAILED
Reason: java.net.BindException: Address already in use: JVM_Bind
I Depend On:
jboss.remoting:service=NetworkRegistry
Depends On Me:
jboss:service=invoker,type=unified

ObjectName: jboss:service=Naming
State: FAILED
Reason: java.rmi.server.ExportException: Port already in use: 1098; nested exc
eption is:
java.net.BindException: Address already in use: JVM_Bind
I Depend On:
jboss.system:service=ThreadPool
jboss:service=NamingBeanImpl
Depends On Me:
jboss.mq:service=DestinationManager
jboss.mq:service=Invoker
jboss.mq:service=InvocationLayer,type=UIL
jboss.mq:service=InvocationLayer,type=UILXA
jboss.mq:service=InvocationLayer,type=UIL2,alias=UIL2ConnectionFactory
jboss.mq:service=InvocationLayer,type=UIL2XA,alias=UIL2XAConnectionFactory
jboss.jms:alias=QueueConnectionFactory
jboss.jms:alias=TopicConnectionFactory
jboss.jmx:type=adaptor,name=Invoker,protocol=jrmp,service=proxyFactory
jboss.jmx:alias=jmx/rmi/RMIAdaptor
jboss:service=Mail

ObjectName: jboss:service=WebService
State: FAILED
Reason: java.lang.Exception: Port 8083 already in use.
I Depend On:
jboss.system:service=ThreadPool
Depends On Me:
jboss.ejb:service=EJBDeployer

ObjectName: jboss.remoting:type=Connector,name=DefaultEjb3Connector,handler=ejb3

State: FAILED
Reason: java.net.BindException: Address already in use: JVM_Bind
I Depend On:
jboss.aop:service=AspectDeployer

ObjectName: jboss:service=invoker,type=pooled
State: FAILED
Reason: java.lang.Exception: Port 4445 is already in use
I Depend On:
jboss:service=TransactionManager

ObjectName: jboss:service=invoker,type=jrmp
State: FAILED
Reason: java.rmi.server.ExportException: Port already in use: 4444; nested exc
eption is:
java.net.BindException: Address already in use: JVM_Bind
I Depend On:
jboss:service=TransactionManager
Depends On Me:
jboss:service=proxyFactory,target=ClientUserTransactionFactory
jboss:service=proxyFactory,target=ClientUserTransaction
jboss.jmx:type=adaptor,name=Invoker,protocol=jrmp,service=proxyFactory


at org.jboss.deployment.MainDeployer.checkIncompleteDeployments(MainDepl
oyer.java:1385)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:785)
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(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatch
er.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractIntercept
or.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelM
BeanOperationInterceptor.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:508)
at java.lang.Thread.run(Thread.java:619)
13:08:15,718 ERROR [Http11Protocol] Error starting endpoint
java.net.BindException: Address already in use: JVM_Bind:8080
at org.apache.tomcat.util.net.JIoEndpoint.init(JIoEndpoint.java:500)
at org.apache.tomcat.util.net.JIoEndpoint.start(JIoEndpoint.java:514)
at org.apache.coyote.http11.Http11Protocol.start(Http11Protocol.java:203
)
at org.apache.catalina.connector.Connector.start(Connector.java:1146)
at org.jboss.web.tomcat.service.JBossWeb.startConnectors(JBossWeb.java:5
84)
at org.jboss.web.tomcat.service.JBossWeb.handleNotification(JBossWeb.jav
a:621)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.notification.NotificationListenerProxy.invoke(Notificati
onListenerProxy.java:153)
at $Proxy35.handleNotification(Unknown Source)
at org.jboss.mx.util.JBossNotificationBroadcasterSupport.handleNotificat
ion(JBossNotificationBroadcasterSupport.java:127)
at org.jboss.mx.util.JBossNotificationBroadcasterSupport.sendNotificatio
n(JBossNotificationBroadcasterSupport.java:108)
at org.jboss.system.server.ServerImpl.sendNotification(ServerImpl.java:9
16)
at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:497)
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:508)
at java.lang.Thread.run(Thread.java:619)
13:08:15,734 WARN [JBossWeb] Failed to startConnectors
LifecycleException: service.getName(): "jboss.web"; Protocol handler start fai
led: java.net.BindException: Address already in use: JVM_Bind:8080
at org.apache.catalina.connector.Connector.start(Connector.java:1153)
at org.jboss.web.tomcat.service.JBossWeb.startConnectors(JBossWeb.java:5
84)
at org.jboss.web.tomcat.service.JBossWeb.handleNotification(JBossWeb.jav
a:621)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.notification.NotificationListenerProxy.invoke(Notificati
onListenerProxy.java:153)
at $Proxy35.handleNotification(Unknown Source)
at org.jboss.mx.util.JBossNotificationBroadcasterSupport.handleNotificat
ion(JBossNotificationBroadcasterSupport.java:127)
at org.jboss.mx.util.JBossNotificationBroadcasterSupport.sendNotificatio
n(JBossNotificationBroadcasterSupport.java:108)
at org.jboss.system.server.ServerImpl.sendNotification(ServerImpl.java:9
16)
at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:497)
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:508)
at java.lang.Thread.run(Thread.java:619)
13:08:15,750 INFO [Server] JBoss (MX MicroKernel) [4.2.2.GA (build: SVNTag=JBos
s_4_2_2_GA date=200710221139)] Started in 53s:313ms

[peterj]

There is no way to do this within JBoss AS itself. However, the run script is, after all, just a script. You can modify the script to test if another instance is running first, either by examining the existing processes or using a "lock" file. How you do either of those depends on the operating system.

[mrfarhankhan]

I have Linux Fedora Core 9 installed on my server. Would you please guide me through the steps to modify the run script. I would really appreciate if you provide me some sample script.

Thanks in advance.
Farhan !

[peterj]

Too bad you are not running Windows or I would have pointed you to the service.bat script (comes with JBoss AS 5.0 and with JBoss Native). That script uses a lock file to prevent multiple runs.

For Linux, look at the jboss_home/bin/jboss_init_hpux.sh script. It greps the output from ps looking for a JBoss AS instance running. I don't know if you can use that script as-is on Fedora, but if not you should be able to use the code that does the isJBossRunning check as an example for writing your own code.

[mrfarhankhan]

Thankyou Peter ! I have solved the problem by adding the following to my runJBoss.sh script

jbossRunning=$(ps -ef | grep "sh runJBoss.sh" | grep -vc grep)
echo "jbossRunning = " $jbossRunning

if [ $jbossRunning -gt 2 ]; then
die "Already running JBoss . . . Going to exit"
else
warn "No instance running. Going to start this"
fi

I would also try the other method that you mentioned.

Thanks a lot
Farhan !