Processing in Multiple Cluster Nodes

Hi All,
In our PI system we have 2 Java nodes due to some requirement. When the communication channel runs and we check the message log, in one Cluster node we have a successful message. In other Cluster Node we have an error message that says "File not found".
The file processing is completeing successfully on one Cluster node. But I wanted to know if there is any way to suppress the processing of the same file by same channel on another Node. Some setting in administration or IB where we can get this done.
Is there any way to get this done by some setting?
Thanks,
Rashmi.

Hello!
As per note #801926, please set the clusterSyncMode parameter on Advanced tab of the communication channel with LOCK value.
And also check the entries 4 and 48 of the FAQ note #821267:
4. FTP Sender File Processing in Cluster Environment
48. File System(NFS) File Sender Processing in Cluster Environment
Best regards,
Lucas

Similar Messages

File Being processed in two cluster nodes

Hi ,
We are having two cluster nodes and when my adapter picks the file, the file is getting processed in 2 cluster nodes.
I believe the file should get processed in either of the cluster node but not in both cluster nodes.
Has any one faced this kind of situation in any of your projects where you might be having different cluster nodes.
Thanks,
Chandra.

Hi Chandra
Did u get a chance to see this post.. it may help
Processing in Multiple Cluster Nodes
Regards,
Sandeep

JNDI Lookup for multiple server instances with multiple cluster nodes

Hi Experts,
I need help with retreiving log files for multiple server instances with multiple cluster nodes. The system is Netweaver 7.01.
There are 3 server instances all instances with 3 cluster nodes.
There are EJB session beans deployed on them to retreive the log information for each server node.
In the session bean there is a method:
public List getServers() {
List servers = new ArrayList();
ClassLoader saveLoader = Thread.currentThread().getContextClassLoader();
try {
   Properties prop = new Properties();
   prop.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.sap.engine.services.jndi.InitialContextFactoryImpl");
   prop.put(Context.SECURITY_AUTHENTICATION, "none");
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   InitialContext mInitialContext = new InitialContext(prop);
   RemoteAdminInterface rai = (RemoteAdminInterface) mInitialContext.lookup("adminadapter");
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   ConvenienceEngineAdministrator cea = rai.getConvenienceEngineAdministrator();
   int nodeId[] = cea.getClusterNodeIds();
   int dispatcherId = 0;
   String dispatcherIP = null;
   String p4Port = null;
   for (int i = 0; i < nodeId.length; i++) {
    if (cea.getClusterNodeType(nodeId[i]) != 1)
     continue;
    Properties dispatcherProp = cadm.getNodeInfo(nodeId[i]);
    dispatcherIP = dispatcherProp.getProperty("Host", "localhost");
    p4Port = cea.getServiceProperty(nodeId[i], "p4", "port");
    String[] loc = new String[3];
    loc[0] = dispatcherIP;
    loc[1] = p4Port;
    loc[2] = null;
    servers.add(loc);
   mInitialContext.close();
} catch (NamingException e) {
} catch (RemoteException e) {
} finally {
   Thread.currentThread().setContextClassLoader(saveLoader);
return servers;
and the retreived server information used here in another class:
public void run() {
ReadLogsSession readLogsSession;
int total = servers.size();
for (Iterator iter = servers.iterator(); iter.hasNext();) {
   if (keepAlive) {
    try {
     Thread.sleep(500);
    } catch (InterruptedException e) {
     status = status + e.getMessage();
     System.err.println("LogReader Thread Exception" + e.toString());
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     readLogsSession = readLogsSessionHome.create();
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      List l = readLogsSession.getAuditLogs(searchFilter);
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     ctx.close();
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     System.err.println(e.getMessage());
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     System.err.println(e.getMessage());
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     status = status + e.getMessage();
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   currentIndex++;
jobComplete = true;
The application is working for multiple server instances with a single cluster node but not working for multiple cusltered environment.
Anybody knows what should be changed to handle more cluster nodes?
Thanks,
Gergely

Thanks for the response.
I was afraid that it would be something like that although
was hoping for
something closer to the application pools we use with IIS to
isolate sites
and limit the impact one badly behaving one can have on
another.
mmr
"Ian Skinner" <[email protected]> wrote in message
news:fe5u5v$pue$[email protected]..
> Run CF with one instance. Look at your processes and see
how much memory
> the "JRun" process is using, multiply this by number of
other CF
> instances.
>
> You are most likely going to end up on implementing a
"handful" of
> instances versus "dozens" of instance on all but the
beefiest of servers.
>
> This can be affected by how much memory each instance
uses. An
> application that puts major amounts of data into
persistent scopes such as
> application and|or session will have a larger foot print
then a leaner
> application that does not put much data into memory
and|or leave it there
> for a very long time.
>
> I know the first time we made use of CF in it's
multi-home flavor, we went
> a bit overboard and created way too many. After nearly
bringing a
> moderate server to its knees, we consolidated until we
had three or four
> or so IIRC. A couple dedicated to to each of our largest
and most
> critical applications and a couple general instances
that ran many smaller
> applications each.
>
>
>
>
>

Query regarding Cluster nodes in CC

Hi Experts,
We have a query regarding the cluster nodes available in the CC monitoring.
Can two nodes of a same channel can poll at the same time?
Kindly suggest what should be done to make a specific cluster node of a CC polls at a particular time.
Thanks
Suganya.

Hi,
There is an answered thread on this
Processing in Multiple Cluster Nodes
Regards,
Manjusha

Cluster node does not shutdown after "received shutdown"

Hi,
We put together an automated restart process that restarts cluster nodes across multiple servers. To shutdown a node, we use the Coherence MBeanConnector and invoke stop on object: name=Management,nodeId=<member id>. This works for most cases where member's log output shows "received shutdown", partition transfer messages and after the last primary partitions have been transferred the VM exits.
For one node however, the VM did not exit. From looking at the log file for this particular node, the primary partitions were transferred, the distributedCache thread stops showing output, but the Cluster thread continues to show activity.
Note that this node was the last VM to stop on the given server.
Has anyone seen this before or ideas on why this particular node did not exit after receiving the shutdown message?
Thanks!
Marcel.

Hi Marcel -
Please take a thread dump (via "kill -3" or "ctrl-break") on the VM that does not stop correctly. Coherence does not shut the VM down; it simply shuts itself down. If a non-daemon thread is running on the VM, then it may not exit. However, we won't know that until we see the thread dump.
Peace,
Cameron Purdy | Oracle Coherence

Data processing in multiple caches in the same node

we are using a partitioned cache to load data ( multiple types of data) in multiple named caches. In one partition, we plan to have all related data and we have got this using key association.
Now I want to do processing with in that node and do some reconciliation of the data from various sources. We tried entry processor, but we want to consolidate all data from multiple named caches in the node. In a very naive form, I am thinking each named cache as a table and i am looking at ways to have a processor that will do some some processing on the related data.
I see we could use a combination of Invocable object, Invocation service and entry processors, but I am unable to implement it successfully.
Can you please point me to any reference implementation where I can do processing at the data node without transfering data back to client.
Also any reference implementation of Map reduce (at the server side) in coherence would be helpful.
Regards
Ganesan

Hi Ganesan
A common approach to perform processing in the grid is to execute background threads in response to backing map listener events. The processing is co-located with data because the listener will be called in the JVM that owns the data. The thread can then make Coherence calls to access caches just like any other Coherence client.
The Coherence Incbutor has numerous examples of this at http://coherence.oracle.com/display/INCUBATOR/Home. The Incubator Common component includes an event processing package that simplifies the handling of events. See the messaging pattern for an example: Message.java and MessageEventManager.java
I am not sure I answered your question but I hope the information helps.
Paul

Add cluster nodes from multiple machines to WebLogic domain in OEM 10.2.0.5

Hello,
I want to monitor a WebLogic domain in Oracle Enterprise Manager 10.2.0.5 with the following layout:
- Admin server on machine 1
- managed server, cluster node a on machine 2
- managed server, cluster node b on machine 3
How can I do this?
When I go to "Add Weblogic Domain", I can enter the admin adress (machine 1) and tick the box to say that there is an agent running on another host (where I specify machine 2). However I do not see a possibility to discover managed servers from machine 3.
Does anyone know how to do this?
Thanks,
Nadja

LSNRCTL> status
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for Linux: Version 11.1.0.6.0 - Production
Start Date 28-JAN-2010 00:36:10
Uptime 0 days 17 hr. 11 min. 52 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /oracle/app/oracle/product/11.1.0/db/network/admin/listener.ora
Listener Log File /oracle/app/oracle/diag/tnslsnr/corp1052/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=corp1052)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "+ASM_XPT" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "dex.example.com" has 2 instance(s).
Instance "dex1", status READY, has 1 handler(s) for this service...
Instance "dex2", status READY, has 2 handler(s) for this service...
Service "dexXDB.example.com" has 2 instance(s).
Instance "dex1", status READY, has 1 handler(s) for this service...
Instance "dex2", status READY, has 1 handler(s) for this service...
Service "dex_XPT.example.com" has 2 instance(s).
Instance "dex1", status READY, has 1 handler(s) for this service...
Instance "dex2", status READY, has 2 handler(s) for this service...
The command completed successfully
The output of SQLPlus:
[oracle@dbhost: db]$ bin/sqlplus dex@DEX
SQL*Plus: Release 11.1.0.6.0 - Production on Thu Jan 28 18:40:11 2010
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Enter password:
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options

Error in invoking a process in JBoss Cluster

Hi,
I have recently installed LC 8.2 on a JBoss 4.2.0 Cluster. The OS of the 2 cluster nodes are Windows 2003 R2 Enterprise Edition SP2.
And the database is SQL Server 2005 Ent. Ed. installed on another Windows 2003 R2 Enterprise Edition SP2.
I have created a simple process on the first node of the cluster. When I invoked the process through Workbench, I get ALC-DSC-003-000: com.adobe.idp.dsc.DSCInvocationException: Invocation error. with the following root cause:
Caused by: javax.naming.NameNotFoundException: adobe_JmsQueueXA not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:529)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:537)
at org.jnp.server.NamingServer.getObject(NamingServer.java:543)
at org.jnp.server.NamingServer.lookup(NamingServer.java:296)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:589)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at org.jnp.interfaces.NamingContext.resolveLink(NamingContext.java:1063)
... 142 more
I get the same error even I close the second node in the cluster.
How can I fix this error?
Thanks

UPDATE!!
I have added the following lines to hajndi-jms-ds.xml file in /server/all/deploy/jms:
    true
    adobe_JmsQueueXA
    jms-ra.rar
    org.jboss.resource.adapter.jms.JmsConnectionFactory
    JMS Adapter
    javax.jms.Topic
    JmsXARealm
    java:/DefaultJMSProvider
    true
    adobe_JmsTopicXA
    jms-ra.rar
    org.jboss.resource.adapter.jms.JmsConnectionFactory
    JMS Adapter
    javax.jms.Topic
    JmsXARealm
    java:/DefaultJMSProvider
But this time I get a different error:
Caused by: javax.jms.JMSException: Could not create a session: org.jboss.resource.JBossResourceException: Unable to setup connection; - nested throwable: (javax.jms.JMSSecurityException: User: guest is NOT authenticated)
                at org.jboss.resource.adapter.jms.JmsSessionFactoryImpl.allocateConnection(JmsSessionFactory Impl.java:403)
                at org.jboss.resource.adapter.jms.JmsSessionFactoryImpl.createQueueSession(JmsSessionFactory Impl.java:144)
                at com.adobe.idp.jobmanager.ejb.JobManagerBean.createJob(JobManagerBean.java:222)
                ... 135 more
                at com.adobe.idp.dsc.provider.impl.base.AbstractResponseHolder.handleException(AbstractRespo nseHolder.java:136)
                at com.adobe.idp.dsc.provider.impl.soap.axis.sdk.SoapSdkBindingStubUtil.deSerializeResponse( SoapSdkBindingStubUtil.java:122)
                at com.adobe.idp.dsc.provider.impl.soap.axis.sdk.SoapAxisDispatcher.doSend(SoapAxisDispatche r.java:128)
                at com.adobe.idp.dsc.provider.impl.base.AbstractMessageDispatcher.send(AbstractMessageDispat cher.java:57)
                at com.adobe.idp.dsc.clientsdk.ServiceClient.invoke(ServiceClient.java:208)
                at com.adobe.common.utils.invoke.InvokeWithProgressRunner.invokeServiceOperation(InvokeWithP rogressRunner.java:170)
                at com.adobe.common.utils.invoke.InvokeWithProgressRunner.run(InvokeWithProgressRunner.java: 97)
                at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
I guess the error is related with login-config.xml, as there are some policy options with "guest" value. But, in fact I carefully followed the instructions on Adobe documentation : prepareinstallcluster.pdf and clustering_jboss.pdf

Error while getting cluster node subtree

Hi,
We are on SP15.
The console logs show the following error
log generation timestamp : 2006_01_17_at_17_14_05
java.rmi.RemoteException: Error while getting cluster node subtree of :name=ClusterNodeRepresentative,j2eeType=com.sap.engine.services.adminadapter.impl.ClusterNodeRepresentative,SAP_J2EEClusterNode=2053400,SAP_J2EECluster=""; nested exception is:
     com.sap.engine.services.jmx.exception.MBeanServerClusterException: Exception during invocation of remote MBeanServer method, target node: 2053400
     at com.sap.engine.services.adminadapter.impl.ConvenienceEngineAdministratorImpl.getClusterNodeSubTree(ConvenienceEngineAdministratorImpl.java:242)
     at com.sap.engine.services.adminadapter.impl.ConvenienceEngineAdministratorImplp4_Skel.dispatch(ConvenienceEngineAdministratorImplp4_Skel.java:99)
     at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java:304)
     at com.sap.engine.services.rmi_p4.DispatchImpl._run(DispatchImpl.java:193)
     at com.sap.engine.services.rmi_p4.server.P4SessionProcessor.request(P4SessionProcessor.java:122)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: com.sap.engine.services.jmx.exception.MBeanServerClusterException: Exception during invocation of remote MBeanServer method, target node: 2053400
     at com.sap.engine.services.jmx.ClusterInterceptor.invoke(ClusterInterceptor.java:816)
     at com.sap.pj.jmx.server.interceptor.MBeanServerInterceptorChain.invoke(MBeanServerInterceptorChain.java:330)
     at com.sap.engine.services.adminadapter.impl.ConvenienceEngineAdministratorImpl.getClusterNodeSubTree(ConvenienceEngineAdministratorImpl.java:239)
     ... 10 more
Caused by: com.sap.engine.services.jmx.exception.JmxConnectorException: Unable to de-serialize request parameters, message [ JMX request (java) v1.0 len: 345 | src: cluster target-node: 2053400 req: invoke params-number: 4 params-bytes: 0 | :name=ClusterNodeRepresentative,j2eeType=com.sap.engine.services.adminadapter.impl.ClusterNodeRepresentative,SAP_J2EEClusterNode=2053400,SAP_J2EECluster="" null null null ]
     at com.sap.engine.services.jmx.MBeanServerConnectionImpl.invokeMbsInternal(MBeanServerConnectionImpl.java:680)
     at com.sap.engine.services.jmx.MBeanServerConnectionImpl.invoke(MBeanServerConnectionImpl.java:467)
     at com.sap.engine.services.jmx.MBeanServerConnectionSecurityWrapper.invoke(MBeanServerConnectionSecurityWrapper.java:221)
     at com.sap.engine.services.jmx.ClusterInterceptor.invoke(ClusterInterceptor.java:813)
     ... 12 more
Caused by: javax.management.InstanceNotFoundException: MBean with name com.sap.default:name=ClusterNodeRepresentative,j2eeType=com.sap.engine.services.adminadapter.impl.ClusterNodeRepresentative,SAP_J2EEClusterNode=2053400,SAP_J2EECluster=XD1 not found in repository
     at com.sap.pj.jmx.server.MBeanServerImpl.getClassLoaderFor(MBeanServerImpl.java:1408)
     at com.sap.pj.jmx.server.interceptor.MBeanServerWrapperInterceptor.getClassLoaderFor(MBeanServerWrapperInterceptor.java:455)
     at com.sap.engine.services.jmx.CompletionInterceptor.getClassLoaderFor(CompletionInterceptor.java:567)
     at com.sap.pj.jmx.server.interceptor.BasicMBeanServerInterceptor.getClassLoaderFor(BasicMBeanServerInterceptor.java:438)
     at com.sap.jmx.provider.ProviderInterceptor.getClassLoaderFor(ProviderInterceptor.java:330)
     at com.sap.engine.services.jmx.RedirectInterceptor.getClassLoaderFor(RedirectInterceptor.java:501)
     at com.sap.pj.jmx.server.interceptor.MBeanServerInterceptorChain.getClassLoaderFor(MBeanServerInterceptorChain.java:443)
     at com.sap.engine.services.jmx.RequestMessage.readParams(RequestMessage.java:523)
     at com.sap.engine.services.jmx.RequestMessage.getParams(RequestMessage.java:578)
     at com.sap.engine.services.jmx.MBeanServerInvoker.invokeMbs(MBeanServerInvoker.java:106)
     at com.sap.engine.services.jmx.JmxServiceConnectorServer.receiveWait(JmxServiceConnectorServer.java:173)
     at com.sap.engine.core.service630.context.cluster.message.MessageListenerWrapper.process(MessageListenerWrapper.java:81)
     at com.sap.engine.core.cluster.impl6.ms.MSListenerThread.run(MSListenerThread.java:47)
     at com.sap.engine.frame.core.thread.Task.run(Task.java:64)
     at com.sap.engine.core.thread.impl6.SingleThread.execute(SingleThread.java:78)
     at com.sap.engine.core.thread.impl6.SingleThread.run(SingleThread.java:148)
java.lang.NullPointerException
     at com.sap.engine.services.adminadapter.gui.ClusterView.addGlobalDispatcherServiceProperties(ClusterView.java:455)
     at com.sap.engine.services.adminadapter.gui.ClusterView.createGlobalTrees(ClusterView.java:508)
     at com.sap.engine.services.adminadapter.gui.ClusterView.access$1200(ClusterView.java:29)
     at com.sap.engine.services.adminadapter.gui.ClusterView$4.run(ClusterView.java:420)
java.rmi.RemoteException: Error while getting cluster node subtree of :name=ClusterNodeRepresentative,j2eeType=com.sap.engine.services.adminadapter.impl.ClusterNodeRepresentative,SAP_J2EEClusterNode=2053400,SAP_J2EECluster=""; nested exception is:
     com.sap.engine.services.jmx.exception.MBeanServerClusterException: Exception during invocation of remote MBeanServer method, target node: 2053400
     at com.sap.engine.services.adminadapter.impl.ConvenienceEngineAdministratorImpl.getClusterNodeSubTree(ConvenienceEngineAdministratorImpl.java:242)
     at com.sap.engine.services.adminadapter.impl.ConvenienceEngineAdministratorImplp4_Skel.dispatch(ConvenienceEngineAdministratorImplp4_Skel.java:99)
     at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java:304)
     at com.sap.engine.services.rmi_p4.DispatchImpl._run(DispatchImpl.java:193)
     at com.sap.engine.services.rmi_p4.server.P4SessionProcessor.request(P4SessionProcessor.java:122)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: com.sap.engine.services.jmx.exception.MBeanServerClusterException: Exception during invocation of remote MBeanServer method, target node: 2053400
     at com.sap.engine.services.jmx.ClusterInterceptor.invoke(ClusterInterceptor.java:816)
     at com.sap.pj.jmx.server.interceptor.MBeanServerInterceptorChain.invoke(MBeanServerInterceptorChain.java:330)
     at com.sap.engine.services.adminadapter.impl.ConvenienceEngineAdministratorImpl.getClusterNodeSubTree(ConvenienceEngineAdministratorImpl.java:239)
     ... 10 more
Caused by: com.sap.engine.services.jmx.exception.JmxConnectorException: Unable to de-serialize request parameters, message [ JMX request (java) v1.0 len: 345 | src: cluster target-node: 2053400 req: invoke params-number: 4 params-bytes: 0 | :name=ClusterNodeRepresentative,j2eeType=com.sap.engine.services.adminadapter.impl.ClusterNodeRepresentative,SAP_J2EEClusterNode=2053400,SAP_J2EECluster="" null null null ]
     at com.sap.engine.services.jmx.MBeanServerConnectionImpl.invokeMbsInternal(MBeanServerConnectionImpl.java:680)
     at com.sap.engine.services.jmx.MBeanServerConnectionImpl.invoke(MBeanServerConnectionImpl.java:467)
     at com.sap.engine.services.jmx.MBeanServerConnectionSecurityWrapper.invoke(MBeanServerConnectionSecurityWrapper.java:221)
     at com.sap.engine.services.jmx.ClusterInterceptor.invoke(ClusterInterceptor.java:813)
     ... 12 more
Caused by: javax.management.InstanceNotFoundException: MBean with name com.sap.default:name=ClusterNodeRepresentative,j2eeType=com.sap.engine.services.adminadapter.impl.ClusterNodeRepresentative,SAP_J2EEClusterNode=2053400,SAP_J2EECluster=XD1 not found in repository
     at com.sap.pj.jmx.server.MBeanServerImpl.getClassLoaderFor(MBeanServerImpl.java:1408)
     at com.sap.pj.jmx.server.interceptor.MBeanServerWrapperInterceptor.getClassLoaderFor(MBeanServerWrapperInterceptor.java:455)
     at com.sap.engine.services.jmx.CompletionInterceptor.getClassLoaderFor(CompletionInterceptor.java:567)
     at com.sap.pj.jmx.server.interceptor.BasicMBeanServerInterceptor.getClassLoaderFor(BasicMBeanServerInterceptor.java:438)
     at com.sap.jmx.provider.ProviderInterceptor.getClassLoaderFor(ProviderInterceptor.java:330)
     at com.sap.engine.services.jmx.RedirectInterceptor.getClassLoaderFor(RedirectInterceptor.java:501)
     at com.sap.pj.jmx.server.interceptor.MBeanServerInterceptorChain.getClassLoaderFor(MBeanServerInterceptorChain.java:443)
     at com.sap.engine.services.jmx.RequestMessage.readParams(RequestMessage.java:523)
     at com.sap.engine.services.jmx.RequestMessage.getParams(RequestMessage.java:578)
     at com.sap.engine.services.jmx.MBeanServerInvoker.invokeMbs(MBeanServerInvoker.java:106)
     at com.sap.engine.services.jmx.JmxServiceConnectorServer.receiveWait(JmxServiceConnectorServer.java:173)
     at com.sap.engine.core.service630.context.cluster.message.MessageListenerWrapper.process(MessageListenerWrapper.java:81)
     at com.sap.engine.core.cluster.impl6.ms.MSListenerThread.run(MSListenerThread.java:47)
     at com.sap.engine.frame.core.thread.Task.run(Task.java:64)
     at com.sap.engine.core.thread.impl6.SingleThread.execute(SingleThread.java:78)
     at com.sap.engine.core.thread.impl6.SingleThread.run(SingleThread.java:148)
java.lang.NullPointerException
     at com.sap.engine.services.adminadapter.gui.ClusterView.addGlobalDispatcherServiceProperties(ClusterView.java:455)
     at com.sap.engine.services.adminadapter.gui.ClusterView.createGlobalTrees(ClusterView.java:508)
     at com.sap.engine.services.adminadapter.gui.ClusterView.access$1200(ClusterView.java:29)
     at com.sap.engine.services.adminadapter.gui.ClusterView$4.run(ClusterView.java:420)
Any clue whats it?
rgds

Go the same error
+ /usr/java14_64/bin/java -showversion -Duser.language=en -DP4ClassLoad=P4Connection -Dp4Cache=clean -jar go.jar
java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2)
Classic VM (build 1.4.2, J2RE 1.4.2 IBM AIX 5L for PowerPC (64 bit JVM) build caix64142ifx-20061222 (ifix 113727: SR7 + 112603) (JIT enabled: jitc))
java.lang.NullPointerException
        at com.sap.engine.services.adminadapter.gui.ClusterView$4.run(ClusterView.java:405)
Need some help!
Bernard

Possible to have multiple cluster members in the same JVM (for unit tests)?

Hi,
I'm wondering if it's possible to simulate multiple cluster members inside of a single JVM. I'm looking to unit test my code and it would be great to write cases for various boundary conditions.
This could certainly be done with multiple JVMs but would be more difficult to run in something like cruise control etc.
TIA,
Danny

Hi Danny,
I do not know how to accomplish what you are asking for and run several Coherence nodes in a single JVM, but I have written a JUnit base class that starts a configurable number of nodes (each in its own JVM) and provides some other useful methods for unit/integration testing with Coherence, such as method to clear all caches or to load test data from the CSV file.
It is still a work in progress and you might need to tweak things a bit to make it work in your environment, but it will at least give you a head start.
Shoot me an email if you are interested and I'll send it to you (you can find my email in my profile).
Regards,
Aleks

Help with a Blind Configuration of a G5 Cluster node

So I bought 2 G5 Cluster Nodes to dedicate some audiovisual processes to them. My only other mac computer is a Core 2 Duo Macbook Pro.
Using Pacifist, I was able to do a clean install of Mac OSX onto the internal drive by putting it into an external enclosure.
Now here is my problem: The cluster nodes have no videocard.
I plan on using them through the OSX Screen Sharing function, when they will be conencted to the network, but I don't know how to do the initial configuration of Mac OS X on them, since I can not boot from a system using the Apple Partition Map on my Macbook pro, and the Cluster node will not boot from the GIUD partition scheme.
Can anyone please help me?
Thanks,
Chuck

Assuming you're running Mac OS X Server on the cluster node, just boot the server normally - it will run a special first-time-boot process that sets up a network listener.
You can then install the Server Admin tools on your MacBook Pro and run Server Assistant. Server Assistant will look out over the network and find the new servers, then give you the opportunity to configure them remotely (assign account data, IP address, etc.).
(note you can also do this as part of the initial install process - boot the server from the Install DVD and run the entire OS installation and configuration remotely via Server Assistant)
Note: If you're not running Mac OS X Server on the cluster nodes then the above doesn't apply

Cluster node (1 out of 6) is in error for a file channel - SAP XI

Hi,
In one of a sender file channel for an interface, one java node out of 6 configured ones failed. The error message says "Login Incorrect" while the other cluster nodes are polling properly. I have tried to update the password in the channel's configuration in Integration Directory and activated it. This doesnt help. Please advice!
Thanks in advance!
Regards,
Kumaran

Hello Kumaran,
The status of the file adapter is not reflected properly but this should not have an impact. No message might have arrived at that node yet. Once it receives a message for processing, the status will be changed.
Anil

Best Practice: Application runs on Extend Node or Cluster Node

Hello,
I am working within an organization wherein the standard way of using Coherence is for all applications to run on extend nodes which connect to the cluster via a proxy service. This practice is followed even if the application is a single, dedicated JVM process (perhaps a server, perhaps a data aggregater) which can easily be co-located with the cluster (i.e. on a machine which is on the same network segment as the cluster). The primary motivation behind this practice is to protect the cluster from a poorly designed / implemented application.
I want to challenge this standard procedure. If performance is a critical characteristic then the "proxy hop" can be eliminated by having the application code execute on a cluster node.
Question: Is running an application on a cluster node a bad idea or a good idea?

Hello,
It is common to have application servers join as cluster members as well as Coherence*Extend clients. It is true that there is a bit of extra overhead when using Coherence*Extend because of the proxy server. I don't think there's a hard and fast rule that determines which is a better option. Has the performance of said application been measured using Coherence*Extend, and has it been determined that the performance (throughput, latency) is unacceptable?
Thanks,
Patrick

Multiple Weblogic nodes on single Windows server - Dispatcher question?

Hi All,
My experience is with other J2EE web servers (SAP's Netweaver predominantly) and typical installations on this platform include the installation of a dispatcher J2EE node which balances load across potentially multiple J2EE nodes on a single server. Does Weblogic have a similar set-up, as it appears when you create multiple nodes in Weblogic, you need to set-up a load balancer to achieve this same effect (that is installed by default on other platforms).
Obviously creating a single node is pretty useless for the majority of production installations; hence what is the recommended option (without setting up a dedicated load balancer) to achieve this on a single (albeit large) server?
Thanks,
Matt

Hi,
I had just remembered another option, we can set up weblogic as webserver which does the load balancing. Below are the two ways you can do that.
1. While creating the domain using "config.sh" you will get an option to set up "weblogic server as webserver". This option is enabled only on condition "cluster must be created, and few managed servers needs to assigned to cluster". For example if we create 3 managed servers and we assign 2 managed to cluster then "Http Proxt screen" would be enabled where remaining server can be set up as "http proxy webserver".
2. Below is the lengthy procedure.
a. Create a standalone weblogic server.
b. We need to create a dummy war, which just contains below "web.xml" adn "weblogic.xml", let me know if you have trouble creating this war file.
Contents of "web.xml"
<?xml version='1.0' encoding='UTF-8'?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<servlet>

<servlet-name>HttpClusterServlet</servlet-name>
<servlet-class>weblogic.servlet.proxy.HttpClusterServlet</servlet-class>
<init-param>
<param-name>WebLogicCluster</param-name>
<param-value>127.0.0.1:7003|127.0.0.1:7005|127.0.0.1:7007</param-value>
</init-param>
</servlet>

<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpClusterServlet</servlet-name>
<url-pattern>browsestore</url-pattern>
</servlet-mapping>
</web-app>
Contents of "weblogic.xml" . This deployment descriptor is used to deploy this application as "default application".
<?xml version='1.0' encoding='UTF-8'?>
<weblogic-web-app xmlns="http://www.bea.com/ns/weblogic/90" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<context-root>/</context-root>
</weblogic-web-app>
c. Now deploy this war file to standalone weblogic server.
d. Lets suppose you had deploy application "vas.war" on managed server "VASMS1", "VASMS2", which are running on host "vasunix1" and "vasunix2" on ports 8002. You can access the application directly "http://vasunix1:8001/vas" or "http://vasunix2:8002/vas".
Now since you had set up "http proxy webserver" which does the load balancing, you can directly hit "http proxy webserver" url and it redirects traffic to "VASMS1" or "VASMS2". Lets suppose "Http proxy webserver" "VASMS3" is running on "vasunix1" on port "8003". You can access the application "http://vasunix1:8003/vas", this request is directed to MS1 or MS2.
I hope this is what you are looking for. Have great day.
Vijay Bheemineni.

Do I use same oracle account on 2 cluster nodes cause problem?

Do I use same oracle account on 2 cluster nodes cause problem?
If I use same oracle account on 2 cluster nodes running 2 database, when failover happens, 2 database will be running on one node, does 2 oracle account make SHM ... memory conflict?
or do I have to use oracle01 account on node1, oracle02 account on node2? Can not use same name account?
Thanks.

I'm not 100% certain I understood the question, so I'll rephrase them and answer them.
Q. If I have the same Oracle account on each cluster node, e.g. uid=100 (oracle) gid=100 (oinstall), groups dba=200, can I run two databases, one on each cluster node without problems?
A. Yes. Having multiple DBs on one node is not a problem and doesn't cause shared memory problems. Obviously each database needs a different database name and thus different SID.
Q. Can I have two different Oracle accounts on each cluster node e.g. uid=100 (oraclea) gid=100 (oinstall), groups dba=200 and e.g. uid=300 (oracleb) gid=100 (oinstall), groups dba=200, and run two databases, one for each Oracle user?
A. Yes. The different Oracle user names would need to be associated with different Oracle installations, i.e. Oracle HOMEs. So you might have /oracle/oracle/product/10.2.0/db_1 (oraclea) and /oracle/oracle/product/11.0.1.0/db_1 (oracleb). The ORACLE_HOME is then used to determine the Oracle user name by checking the user of the Oracle binary in the ${ORACLE_HOME}/bin directory.
Tim
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Processing in Multiple Cluster Nodes

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