Clustered Singleton Service in WLS?

Hello,
          I'm working on a clustered system that needs a distributed
          singleton. Specifically I need a timer/listener pair that
          will do work in the system, but I it would be bad to have
          more than one listener fired off within the cluster.
          How can I design this feature such that:
          1) There is only one active timer/listener in the clustered
          app active at any one time
          2) If this active instance dies, another somewhere in the
          cluster will be spooled up to take its place?
          I'm considering some kind of JXTA-based solution but before
          I invest a lot of energy in that direction I want to be
          sure I'm not trying to kill a fly with a bazooka.
          Thanks
          Greg

I'm working on a clustered system that needs a distributed          > singleton. Specifically I need a timer/listener pair that
          > will do work in the system, but I it would be bad to have
          > more than one listener fired off within the cluster.
          > 1) There is only one active timer/listener in the clustered
          > app active at any one time
          > 2) If this active instance dies, another somewhere in the
          > cluster will be spooled up to take its place?
          See the clustered singleton example using Coherence:
          http://www.tangosol.net/forums/thread.jspa?forumID=6&threadID=82&tstart=0
          Peace,
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com/coherence.jsp
          Tangosol Coherence: Clustered Replicated Cache for Weblogic
          "Greg" <[email protected]> wrote in message
          news:[email protected]..
          >

Similar Messages

Error with running Singleton Service in a non-clustered mode

Hello,
I'm getting this error when try to deploy an app with defined Singleton Service in a WebLogic 10.3.5:
<Error> <Deployer> <localdomain> <AdminServer><[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default(self-tuning)'> <<WLS Kernel>> <><7785ef355ffde3d6:-4c7bfbbc:138dd48f82b:-8000-0000000000000002><1343742871514> <BEA-149231> <Unable to set the activation state to true for the application 'MyApp'.
weblogic.management.DeploymentException:
at weblogic.application.internal.flow.SingletonServicesFlow.activate(SingletonServicesFlow.java:67)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:636)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:205)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:58)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:161)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.BasicDeployment.activate(BasicDeployment.java:184)
at weblogic.deploy.internal.targetserver.BasicDeployment.activateFromServerLifecycle(BasicDeployment.java:361)
at weblogic.management.deploy.internal.DeploymentAdapter$1.doActivate(DeploymentAdapter.java:52)
at weblogic.management.deploy.internal.DeploymentAdapter.activate(DeploymentAdapter.java:200)
at weblogic.management.deploy.internal.AppTransition$2.transitionApp(AppTransition.java:31)
at weblogic.management.deploy.internal.ConfiguredDeployments.transitionApps(ConfiguredDeployments.java:240)
at weblogic.management.deploy.internal.ConfiguredDeployments.activate(ConfiguredDeployments.java:170)
at weblogic.management.deploy.internal.ConfiguredDeployments.deploy(ConfiguredDeployments.java:124)
at weblogic.management.deploy.internal.DeploymentServerService.resume(DeploymentServerService.java:181)
at weblogic.management.deploy.internal.DeploymentServerService.start(DeploymentServerService.java:97)
at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused By: java.lang.IllegalArgumentException: Cannot add Singleton Service MySingletonService as SingletonServicesManager not started. Check if MigrationBasis for cluster is configured.
at weblogic.cluster.singleton.SingletonServicesManager.addConfiguredService(SingletonServicesManager.java:280)
at weblogic.cluster.singleton.SingletonServicesManager.addConfiguredService(SingletonServicesManager.java:297)
at weblogic.application.internal.flow.SingletonServicesFlow.activate(SingletonServicesFlow.java:65)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:637)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:54)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:205)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:58)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:161)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.BasicDeployment.activate(BasicDeployment.java:184)
at weblogic.deploy.internal.targetserver.BasicDeployment.activateFromServerLifecycle(BasicDeployment.java:361)
at weblogic.management.deploy.internal.DeploymentAdapter$1.doActivate(DeploymentAdapter.java:52)
at weblogic.management.deploy.internal.DeploymentAdapter.activate(DeploymentAdapter.java:200)
at weblogic.management.deploy.internal.AppTransition$2.transitionApp(AppTransition.java:31)
at weblogic.management.deploy.internal.ConfiguredDeployments.transitionApps(ConfiguredDeployments.java:240)
at weblogic.management.deploy.internal.ConfiguredDeployments.activate(ConfiguredDeployments.java:170)
at weblogic.management.deploy.internal.ConfiguredDeployments.deploy(ConfiguredDeployments.java:124)
at weblogic.management.deploy.internal.DeploymentServerService.resume(DeploymentServerService.java:181)
at weblogic.management.deploy.internal.DeploymentServerService.start(DeploymentServerService.java:97)
at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
It gets run only after deleting singleton-service entry from weblogic-application.xml:
<singleton-service>
<class-name>my.app.SingletonClass</class-name>
<name>MySingletonService</name>
</singleton-service>
Is it possible to run it in a non-clustered server without deleting Singleton entry from weblogic-application.xml?
Thanks

Did this help you ??
Not sure if it's related as here the issue is with clustered/non clustred and versioning!! the application which the bug talks about.

Weblogic clustering - share a singleton services without implementing weblogic singletonService interface

I have a singleton object java object in my application , when i deploy my application in clustering each cluster node creates a separate singleton object thus data integrity is lost. More over I am not in a position to change any of my code with specific to web-logic and implement any third party library such as teracotta.
Can any one help me out of it in how to maintain the data integrity between the cluster nodes . Thanks in Advance

Hi,
I'm not sure if singleton services works with stateless session beans. By other hand, I understand as follow:-
1. After you have created a singleton service class using the SingletonService interface, you must define it as a singleton service within WebLogic Server, see http://download.oracle.com/docs/cd/E1284001/wls/docs103/ConsoleHelp/taskhelp/clusters/ConfigureSingletonService.html_
2. A singleton service is a service (application) on a cluster that is available and active on only one server at any given time, you must deploy the service on only one member of the cluster.
3. For high avalability, you must implement WebLogic Service Migration for your singleton service, see http://download.oracle.com/docs/cd/E1284001/wls/docs103/cluster/service_migration.html#wp1051458_
4. The clients connecting to the service, you must implement a special mechanism. See http://download.oracle.com/docs/cd/E1322201/wls/docs81/jndi/jndi.html#475689_

Singleton service example

Hi
          In order to create and deploy a singleton service on WebLogic 92, I did exactly as the book said (http://edocs.bea.com/wls/docs92/cluster/migration.html#wp1045262). But it didn't work.
          So I wish to find a tested example (all required files), or an artical that describes the whole process of creating and deploying a singleton-service, with one of you.
          Thx in advanse

Hi,
          I'm runing into issues trying to build a simple singleton service. Actually, I do not even know how to invoke methods on the singleton. I guess there is not enough documentation on this. Just curious whether or not you get this working. I will really appreciate it if you can share some ideas/knowledge.
          Thanks, Adam

Singleton service

Hi guys
I tried to create singleton service by implement SingletonService interface which provided by weblogic.
And configure singleton service in
weblogic-application.xml file.
And define singleton service in
environment->cluster->singleton service tab in weblogic console.
I used to create Singleton service instance like such a way
SingletonServiceTest singletonServiceTest =
(SingletonServiceTest)SingletonServicesManager.
getInstance().
getService("SingletonServiceTest");
Problem was
SingletonServicesManager give the different singleton service instance for different server.

I have partial solution now:
For proper work of SingletonService, the servers (cluster nodes) must be run using node manager. Then SingletonService as pure java class works - methods activate and deactivate are called as expected.
However it seems, that MDB cannot be a SingletonService.
zmach

Is Singleton service available in oracle application server

Is Singleton service available in oracle application server
if yes please provide documentation

Hi,
what do you mean with singleton service? I know singletons as a design pattern in J2EE, so you may have to provide more information to get this question answered.
Frank

How to install service for wls 7

How to install NT service for wls 7 instance with pipe symbol (|) as part of
-Dhttp.nonProxyHosts on the CMDLINE ? I'm having trouble with the | symbol on
the command line ?
Thanks,
Jessie

Hi Mark,
Here is the info :
C:\wlsdomains\SSLdomain>set CMDLINE="-hotspot -Xms32m -Xmx200m -Dhttp.proxyHost=
snocache -Dhttp.proxyPort=8080 -Dhttps.proxyHost=snocache -Dhttps.proxyPort=8080
-Dhttp.nonProxyHosts=\" | localhost | *.capgroup.com | SNO* | BRO* | \" -clas
spath \"c:\weblogic7.0.2\jdk131_06\lib\tools.jar;c:\weblogic7.0.2\weblogic700\se
rver\lib\weblogic_sp.jar;c:\weblogic7.0.2\weblogic700\server\lib\weblogic.jar;C:
\Program Files\RadView\WebLOAD5.0\LiveConnect\Classes\" -Dweblogic.Name=SSLserve
r -Dbea.home=\"c:\weblogic7.0.2\" -Dweblogic.management.username=admin -Dweblogi
c.ProductionModeEnabled= -Djava.security.policy=\"c:\weblogic7.0.2\weblogic700\s
erver\lib\weblogic.policy\" weblogic.Server"
'localhost' is not recognized as an internal or external command,
operable program or batch file
| symbol is causing the 'localhost' is not recognized as an internal or external
command error
thanks,
Jessie
"Mark Griffith" <[email protected]> wrote:
What is the exact syntax you are using and what is the "failure/problem"?
Are you using CMD or mks?
cheers
mbg
"Jessie Yau" <[email protected]> wrote in message
news:3efa3b80$[email protected]..
How to install NT service for wls 7 instance with pipe symbol (|) aspart
of
-Dhttp.nonProxyHosts on the CMDLINE ? I'm having trouble with the |symbol
on
the command line ?
Thanks,
Jessie

Singleton service/task in a cluster

I have a timer that schecules multiple task. This runs fine in a single JVM.
When I cluster using coherence does coherence provide any framework to convert this task to a singleton service so that only a node in the cluster executes it?
Thanks
Kumar Pandey

Hi Kumar,
Yes, WorkManager is clearly one way to do it. It is most useful when your tasks come from a single client thread.
In a scenario, when you have many clients in a cluster that may want to execute the same task at the same time, a concurrency API could be an answer. Please see this postas an example for using this pattern.
Regards,
Gene

Singleton Service in Cluster

Has anybody created the singleton servince in cluster and migrated once the server goes down. If so can you please share the sameple and steps for the migration.
Thanks,

Here is an example on how to create a singleton service: http://middlewaremagic.com/weblogic/?p=5799
Example on configuring migration can be found here: http://middlewaremagic.com/weblogic/?p=7188

Weblogic Singleton Service concurrent updates

Our environment has 1 cluster with 4 managed servers(each in a different physical servers).We have a requirement to maintain a cache which is transparent to all the 4 servers(only one copy is expected to be available at any point of time in the cluster) . This cache contains hashmap which gets updated every millisecond by clients performing calculations.This cache does not grow in volume overtime but has very frequent updates. We plan to implement a weblogic singleton service to handle this caching requirement .
1. Based on your past experience, Is weblogic singleton an ideal candidate for such a requirement. Does this introduce any delay because of synchronizing between the 4 managed servers? This will be used by the pricing engine and we do not want this to introduce any additional delay using this technology.
2. Also can you let me know what is the underlying technology weblogic(does it use IP multicast??? or do we have a choice choosing either IP socket, ip unicast or mulicast) uses to syncronize the data in singleton object with the managed servers.
3. Can I have this setup without a nodemanager as nodemanages are not allowed in our environment. According to what I read from weblogic documentation, nodemanager is required if we use consensus leasing only.If I choose to use database leasing, node manager is not required. Is that true?
Thanks for your help.

I'd be seriously looking at Oracle Coherence, which is specifically designed to solve this sort of distributing caching/map problem.
http://coherence.oracle.com/display/COH/Oracle+Coherence+Knowledge+Base+Home
-steve-

How to implement singleton service if i m using only jar and war component

hello,
in my application i m using only jar and war component .
as i m not using EAR for deployment so i dont have weblogic-application.xml file.
so in this case how i implement weblogic singleton service .and how to call active method

From the documentation:
After you have created a singleton service class using the SingletonService interface, you must define it as a singleton service within WebLogic Server. This singleton service object contains the following information:
The path to the class to load as the singleton service.
The preferred server and other candidate servers for the singleton service.
The following excerpt from the cluster element of config.xml shows how a singleton service is defined:
<singleton-service>
<name>SingletonTestServiceName</name>
<user-preferred-server>myManaged1</user-preferred-server>
<class-name>mycompany.myprogram.subpackage.SingletonTestServiceImpl</class-name>
<cluster>myCluster</cluster>
</singleton-service>
Note that the config.xml is located in the <domain-home>/config directory

Admin Server Shows Singleton Services Manager not started

Hi,
I have an environment with 1 Admin Server and 2 Managed Servers in the cluster.
I am using Migration basis as database for the cluster. I checked by installing one singleton service that it is working fine in cluster.
Then I created one migratable target having auto migration as the migration policy and migratable target is also working as expected.
Now the problem is whenever I start my Admin Server it is throwing exception:
Cannot add Singleton Service <Migratable Target Name> as Singleton not started. Check if MigrationBasis for cluster is configured.
Anyone is having any idea about this problem, what can be the issue is?
Thanks in Advance

Hi Ramprakash Arun,
To prevent the java.net.BindException, use a unique combination of the IP:port as the listen address for every channel configured on the server. No other process should be listening on that address (IP:port).
Using netstat, verify whether the port specified is already in use by another process or not. Also check if the listen address is valid (using ipconfig/ifconfig).
Regards,
Vijaya

Clustered Time Services

Hi,
          I've got several time / schedule related services that are registered upon
          server startup. We are moving from a single server instance to a several
          clustered instances. As expected, I've run into an issue where each
          scheduled service on each cluster is firing independently of the others and
          thus I'm getting multiple notifications of each scheduled event.
          My question is this... how do most shops handle this type of situation? We
          want to have a scalable / failable? solution. I know I can take care of the
          problem by only registering the scheduled objects in a single per server
          properties file, but I lose any type of failover.
          I'm thinking of starting the scheduled services on each server in the
          cluster and binding a next run time into the JNDI tree. When a scheduled
          event fires it would check the next run time to see if it can run its
          schedule. If not it would reschedule itself to check later and effectively
          go back to sleep. If it can run it would do so and increment the next run
          time and reschedule itself to check later and go back to sleep.
          Any thoughts???
          Thanks in advance,
          Steve...


See: http://e-docs.bea.com/wls/docs61/programming.html
          Nalika wrote:
          > Hi,
          >
          > In BEA online docs (
          > http://e-docs.bea.com/wls/docs61/cluster/overview.html ) it describes about
          > Non-Clustered Services and APIs as
          >
          > File services
          > Time services
          > WebLogic Events (deprecated in WebLogic Server 6.0)
          > Workspaces (deprecated in WebLogic Server 6.0)
          > ZAC
          > etc...
          >
          > Can anyone have an idea of what these services means ?
          > Please respond.
          >
          > Thanks
          > Nalika

Error calling a Tuxedo service from WLS

We have WLS 6.1 connecting to Tuxedo 8. We try to run the example application simpapp.
We connect thru the toupper EJB to Tuxedo. It connects succesfully, but when we
execute the tpcall we get this error:
* Tuxedo side:
123313.localhost.localdomain!GWTDOMAIN.8794.1024.0: LIBGWT_CAT:1128: INFO: Connection
accepted from domain (domainid=<WTCSIFO01>)
123313.localhost.localdomain!GWTDOMAIN.8794.1024.0: LIBGWT_CAT:1070: ERROR: Unable
to obtain local service information from shared memory
123313.localhost.localdomain!GWTDOMAIN.8794.1024.0: LIBGWT_CAT:1043: ERROR: Unrecoverable
error occurred on receipt of data - sending failure reply over network
* WLS side:
setSessionContext called
ejbCreate called
toupper called, converting ola
About to call tpcall
<04-ene-01 12:33:13 GMT+01:00> <Info> <WTC> <Established Connection to remote
do
main SIFOWTC01>
tpcall threw TPException TPMINVAL(0):0:0:TPED_MINVAL(0):QMNONE(0):0
I've checked my domain configuration in Tuxedo side, but everithing seems to be
OK.
Thanks
Yol.
This is my Tuxedo domains configuration (took from dmunloadcf)
# DMCONFIG FILE
*DM_RESOURCES
*DM_LOCAL
SIFOSGC     GWGRP=PASARELA
     ACCESSPOINTID="SIFOSGC01"
     AUDITLOG="/home/sifo/tuxedo/entorno/dominio/AUDITLOG"
     BLOCKTIME=6
     DMTLOGDEV="/home/sifo/tuxedo/entorno/DMTLOGDEV"
     DMTLOGNAME="SIFOSGC001_DMTLOG"
     MAXTRAN=50
     BLOB_SHM_SIZE=1000000
SIFOWTC     GWGRP=WTC
     ACCESSPOINTID="SIFOWTC01"
     AUDITLOG="/home/sifo/tuxedo/entorno/dominio/AUDITLOG_WTC"
     BLOCKTIME=6
     DMTLOGDEV="/home/sifo/tuxedo/entorno/DMTLOGDEV_WTC"
     DMTLOGNAME="SIFOWTC001_DMTLOG"
     MAXTRAN=50
     BLOB_SHM_SIZE=1000000
*DM_REMOTE
SGCSIFO     ACCESSPOINTID="SGCSIFO01"
     CREDENTIAL_POLICY="LOCAL"
WTCSIFO     ACCESSPOINTID="WTCSIFO01"
     CREDENTIAL_POLICY="LOCAL"
*DM_TDOMAIN
SIFOSGC     NWADDR="//172.16.160.173:6506"
     NWDEVICE="/dev/inet/tcp"
SGCSIFO     NWADDR="//172.16.160.173:6507"
     NWDEVICE="/dev/inet/tcp"
SIFOWTC     NWADDR="//172.16.160.173:6510"
     NWDEVICE="/dev/inet/tcp"
WTCSIFO     NWADDR="//172.16.160.173:6511"
     NWDEVICE="/dev/inet/tcp"
*DM_ACCESS_CONTROL
ACL_SGC     ACLIST=SGCSIFO
*DM_EXPORT
QPK_CEN     ACL=ACL_SGC
     LACCESSPOINT=SIFOSGC
     COUPLING=LOOSE
QPK_CUR     ACL=ACL_SGC
     LACCESSPOINT=SIFOSGC
     COUPLING=LOOSE
QPK_ESP     ACL=ACL_SGC
     LACCESSPOINT=SIFOSGC
     COUPLING=LOOSE
CUR01147     ACL=ACL_SGC
     LACCESSPOINT=SIFOSGC
     COUPLING=LOOSE
simpserv     LACCESSPOINT=SIFOWTC
     COUPLING=LOOSE
*DM_IMPORT
SEL_TABLAS     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
SEL_POSTAL     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
SEL_MUNICIPIO     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
SEL_PROVINCIA     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
SEL_DAT_PER     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
SEL_DIN_REPET     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
SEL_NOM_PER     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
SEL_CENTRO_SGC     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
ACT_FORMACION     LACCESSPOINT=SIFOSGC
     LOAD=50
     PRIO=50
     RACCESSPOINT=SGCSIFO
     TRANTIME=30
     AUTOPREPARE=N
and this is my WLS configuration (bdmconfig.xml):
<?xml version="1.0"?>
<!DOCTYPE WTC_CONFIG SYSTEM "http://www.bea.com/servers/wls610/dtd/wtc_config.dtd">

<WTC_CONFIG>
<BDMCONFIG>
     <T_DM_LOCAL_TDOMAIN AccessPoint="WTCSIFO01">
          <AccessPointId>WTCSIFO01</AccessPointId>
          <Type>TDOMAIN</Type>
          <Security>NONE</Security>
          <ConnectionPolicy>ON_DEMAND</ConnectionPolicy>
          <BlockTime>30</BlockTime>
          <NWAddr>//172.16.160.173:6511</NWAddr>
     </T_DM_LOCAL_TDOMAIN>
     <T_DM_REMOTE_TDOMAIN AccessPoint="SIFOWTC01">
          <LocalAccessPoint>WTCSIFO01</LocalAccessPoint>
          <AccessPointId>SIFOWTC01</AccessPointId>
          <Type>TDOMAIN</Type>
          <NWAddr>//172.16.160.173:6510</NWAddr>
     </T_DM_REMOTE_TDOMAIN>
     <T_DM_IMPORT
          ResourceName="TOUPPER"
          LocalAccessPoint="WTCSIFO01"
          RemoteAccessPointList="SIFOWTC01">
          <TranTime>600</TranTime>
     </T_DM_IMPORT>
</BDMCONFIG>
</WTC_CONFIG>

Bob, you were right!!
I didn't realize of that. Now the problem is fixed, and the communication with
my domain is ok!
Thank you very much.
Yol.
Bob Finan <[email protected]> wrote:
Yolanda,
You have TOUPPER listed as the service that your trying to
import into the WLS side but you don't have it listed on the
Tuxedo side as an exported service. On the Tuxedo side you
have simpserv listed as an exported service when it is the server
that contains TOUPPER. Change simpserv to TOUPPER in
the dmconfig file and try that.
Bob Finan
Yolanda Arroyo wrote:
This is my Tuxedo domains configuration (took from dmunloadcf)
# DMCONFIG FILE
*DM_EXPORT
simpserv LACCESSPOINT=SIFOWTC
COUPLING=LOOSE
and this is my WLS configuration (bdmconfig.xml):
<?xml version="1.0"?>
<!DOCTYPE WTC_CONFIG SYSTEM "http://www.bea.com/servers/wls610/dtd/wtc_config.dtd">

<WTC_CONFIG>
<BDMCONFIG>
<T_DM_IMPORT
ResourceName="TOUPPER"
LocalAccessPoint="WTCSIFO01"
RemoteAccessPointList="SIFOWTC01">
<TranTime>600</TranTime>
</T_DM_IMPORT>
</BDMCONFIG>
</WTC_CONFIG>

Accessing web services in WLS 10.0.1

We are having trouble accessing a web service on a remote machine from a web application on a separate machine. The web service is accessed via a url with the https protocol with ssl configured on the front and back-end. The application is accessed via a url with the https protocol with ssl configured on the front-end only, both are using the Apache web server.
The error is complaining about a cert handshake error on the application side which is odd since the application is not configured to use ssl on the back-end.
Does WebLogic have a tool we can use to make a call to the web service outside of the application to see if we get the same results? We are trying to determine if it's an ssl, WebLogic, or application issue.

Weblogic does not have any such tool to call the web service hosted on remote machine.
However in order to drill down the issue, you can create a standalone class and try to access the remote web service from the same machine where the WLS is installed and the application is deployed.
If the standalone class can access the web service then this is the issue with the WLS configuration for sure.
Thanks,
Sandeep

Clustered Singleton Service in WLS?

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