JMX monitoring front Coherence cache running on IBM WebSphere

I have a question regarding JMX monitoring a Coherence front cache running in a IBM WebSphere v6.1 JVM (1.5).
My setup is that I have three Coherence nodes (back cache) each running 10 JVMs each. Via JMX all these 30 JVMs are setup to be monitored from one of the 30 JVMs which is configured to be the JmxServer for the other 29 instances. The other 29 JVMs set -Dtangosol.coherence.management.remote=true at startup to indicate that their MBean tree will be managed centrally. This works fine but when I try to extend this to also be able to manage the front cache (running on WebSphere on a separate node in the tier above) by adding the same flag (-Dtangosol.coherence.management.remote=true) it does not appear in the MBean tree as the other 30 Coherence cache (Sun) JVMs do.
Are there other things I have to consider to get this working? There are no firewalls in between the nodes so that is not the problem. How much of IBM WebSpheres (non-standard) JMX-functionality is required to get this to work?
/Jonas

How is the WebSphere node connected to the cluster? Is it using TCMP? Extend?
Local, Distributed, Replicated, Near, Overflow, External and Optimistic cache statistics appear in the Coherence JMX server. However, near and local caches created on extend nodes do not appear. Therefore the -Dtangosol.coherence.management.remote=true on an Extend client will not register the near or local caches.
Thanks,
Everett

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* IBM Websphere Vs Oracle's Weblogic server *

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Hi,
I am running two cache clusters (Cluster A and B that hold different cache types). we have a web application that needs to communicate with both the clusters. we have two coherence-cache-config-g.xml files, one for each cluster.
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Looking for some advice on CEP HA and Coherence cache

We are looking for some advice or recommendation on CEP architecture.
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Hi,
Just to make it clear:
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The requirements from our application are:
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- A single thread JMS adapter is not reading the messages from the JMS fast enough mainly because it takes time to parse the XML to an event.
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Are you also suggesting that we will not use a replicated cache but instead a stand alone cache on each server? In this case how do we keep the same order of events on both CEPs (on both caches)?

Verify whether the session data is kept in the Coherence caches

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@echo onEdited by: jetq on Jan 13, 2010 9:32 AM

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                         <port>####</port>
                         <port-auto-adjust>false</port-auto-adjust>
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          <service-guardian>
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user1945969 wrote:
Thanks for your answer but I also wanted to know if there is anyway I can verify that by the data in the cluster? You can start up the [command line application|http://coherence.oracle.com/pages/viewpage.action?pageId=16684] or write a quick class to display the information for that particular cache.
I mean can check what all data is present in each cluster member?I would suggest taking a look via JMX. In this case, you would want to look at the ServiceMBean, CacheMBean and StorageManagerMBean MBeans (take a look at the Registry for more information).
Another reason why I am not so confident if this scheme is distributed or not is that, in my config xml I do not have any backing map scheme configured so how is coherence going to do the backups in this case?
<backing-map-scheme>
     <local-scheme/>
</backing-map-scheme>You do have a "backing map" configured, it will just use the defaults.
Coherence always manages the backups automatically, transparently and dynamically for you. When using the partitioned cache (i.e. "distributed-scheme") Coherence will place the backup in a storage enabled node on a separate physical machine as the primary.
Rob
:Coherence Team:

Verify if the sessision data of MapViewer app is stored in Coherence caches

I have successfully combined the MapViewer application with WebLogic and Oracle Coherence*Web.
How to verify whether the session data of MapViewer application is kept in the Coherence caches or not?
All out put show that both of MapViewer and WebLogic server as well as Coherence are running well.
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2. Start the WebLogic domain Map_domain by running startWebLogic.sh script.
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4. Copy the coherence.jar in the WAR's WEB-INF/lib directory.
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"%java_exec%" -server -showversion "%java_opts%" -cp %coherence_home%\lib\coherence.jar;
%coherence_home%\lib\coherence-web-spi.war
-Dtangosol.coherence.management.remote=true
-Dtangosol.coherence.cacheconfig=WEB-INF/classes/session-cache-config.xml
-Dtangosol.coherence.session.localstorage=true
com.tangosol.net.DefaultCacheServer %1
goto exit
:instructions
echo Usage:
echo   ^<coherence_home^>\bin\cache-server.cmd
goto exit
:exit
endlocal
@echo onEdited by: jetq on Jan 12, 2010 9:02 PM

Any opinions are welcome.

About using OSB JMX Monitoring API

hi Experts,
My customer is using OSB11.1.1.7, they are trying to use JMX Monitoring API to get the statistic info, but have the following issues:
1. For the non-soap service, the serviceDomainMbean.getBusinessServiceStatistics method always return error when typeFlag was set with ResourceType.WEBSERVICE_OPERATION.value(), reason is there is no ws operation for this service, customer wants to know how to know if a service has no ws operation ,therefore they can avoid to get ws-operation statistic info for those kind of services.
2. Is there a way to get statistic info for the current aggregation interval? the api seems works with period from last reset.
3. Further more, How to get statistic info for special period, for example, customer want to query statistic info from 05/01 to 05/03, or from 05/03 12:00 to 05/03 13:00
Thanks for the help.
Best regards

Davinder Singh wrote:
Hi ,
I have an application deployed on weblogic server 8.1 . This has some MBeans exposed
for management purposes. This needs to be accessed from another web application
running on another weblogic instance on different machine. For this the managed
application has a Connector server and the management application is trying to
connect it through Connector client.
At the managed application side , i am getting NoSuchMethodError: javax.management.MBeanServer.getClassLoaderRepository()
I am not using weblogic implementation of JMX (MBean Server).
My guess about the error :the weblogic implements JMX version 1.0 and i am using
JMX remoting API (RI from Sun) which requires JMX 1.2
Is there a way i can make weblogic use JMX 1.2 ?I dont think there is a way to do this. But I might be wrong.
>
Thanx,
Davinder

Start a new Coherence cache server

Hi experts,
I have an application configured with oracle coherence running on the weblogic server. Can I start a new Coherence cache server from a command prompt so that, this newly created cache server joins the existing cluster already running on the weblogic server. Can you please guide me through this or point to the relevant documentation.
Thanks for your time.
Cheers,

You just need to run...
java <parameters> -cp <your class path> DefaultCacheServerwhere...
<parameters> is set to the same set of -D paramters you have given the application inside WebLogic.
<your class path> is all the jar files in your application, including coherence.jar (but you don't need any ear or web app stuff obviously)
Presumably you have configured the system properties for your application in WebLogic to set the multicast address (-Dtangosol.coherence.clusteraddress
and -Dtangosol.coherence.clusterport), cache config (-Dtangosol.coherence.cacheconfig) etc... If you have not then you really should! You basically run DefaultCacheServer with the same parameters.
When I have used Weblogic and Coherence in the past the usual configurationis to run a number of storage enabled cache server nodes (which is what you are asking about) and then run the WebLogic nodes as storage diabled cluster members. This is much more efficient as it lets the storage enabled node just concentrate on storing data nad the WebLogic node just concentrate on you application.
JK

JMX monitoring front Coherence cache running on IBM WebSphere

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