Oracle service bus cache flush/clear - business service

Hi Everyone,
We are currently using oracle service bus as an integration platform. We are conducting a disaster recovery exercise for on of the applications (A) integrated to OSB, but the OSB is always connecting to the primary node of the application A though the DNS at application A is pointing to the secondary node.
We believe this is happening because OSB is caching the IP address of the application A (though it is using DNS) and keeps connecting to the same server even if the primary traffic is diverted to the secondary node.
Can someone please let us know if there is a way we can clear the cache of the business service (used to connect to the application A) without restarting the servers?
Thank you.
Regards,
Ram

Yes, by default the JVM will cache the name resolution. You can change this behaviour by adding the TTL in the managed server startup parameters as follows:
-Dnetworkaddress.cache.ttl=120 -Dnetworkaddress.cache.negative.ttl=10
The above parameters mean that the JVM will cache the name resolution for 2 minutes in case of success and for 10 seconds in case of a failure.
For testing purposes, you can reduce the ttl from 120 seconds, but when in production make sure that this value is not too low.
Regards,
Fabio Douek

Similar Messages

Result cache refresh at business service (OSB) ?

Hi,
I have configured my business service at osb side to cache the result. My business service is pointing JCA- dbadapter which is calling a stored procedure.
Is there any way to update/refresh the cache if there are any changes in the corresponding tables which the store procedure is using. I have googled a lot on this but have found nothing on it.
Any help would be very much appreciated.

Is there any way to update/refresh the cache if there are any changes in the corresponding tables which the store procedure is using. I have googled a lot on this but have found nothing onAFAIK, OSB does not provide any functionality to refresh the cache without hitting the backend sevice.
The result caching in Oracle Service Bus is available for Business Services. When you enable result caching, the Business Service will not reach the backend service and the response will come from the cache entry. This entry can expire and if the entry is expired, the next service call will indeed reach the backend service and update the cache entry.
Each cached result has its own TTL. When a TTL is reached, Oracle Coherence flushes that individual cached result.
It would be better if you can raise a support ticket and ask for enhancement.
Regards,
Abhinav Gupta

Oracle service bus Business service - Cache Flush/clear

Hi Everyone,
We are currently using oracle service bus as an integration platform. We are conducting a disaster recovery exercise for on of the applications (A) integrated to OSB, but the OSB is always connecting to the primary node of the application A though the DNS at application A is pointing to the secondary node.
We believe this is happening because OSB is caching the IP address of the application A (though it is using DNS) and keeps connecting to the same server even if the primary traffic is diverted to the secondary node.
Can someone please let us know if there is a way we can clear the cache of the business service (used to connect to the application A) without restarting the servers?
Thank you.
Regards,
Ram

Yes, by default the JVM will cache the name resolution. You can change this behaviour by adding the TTL in the managed server startup parameters as follows:
-Dnetworkaddress.cache.ttl=120 -Dnetworkaddress.cache.negative.ttl=10
The above parameters mean that the JVM will cache the name resolution for 2 minutes in case of success and for 10 seconds in case of a failure.
For testing purposes, you can reduce the ttl from 120 seconds, but when in production make sure that this value is not too low.
If you follow the above, you don't have to restart anything and you don't have to write any script. The IP address is going to be updated as long as the DNS server is being updated correctly (you can easily test by pinging the host name)
Regards,
Fabio Douek

Features to isolate OSB services from just one slow business service.

Hi,
Here is a OSB question around a quick business service that suddenly turn to be a slow one and the impact on the overall OSB performance.
Suppose you have a critical OSB cluster in production with many proxy and business services.
Because of requirements, you have a specific sync http business service (web service) that has an acceptable response time around 1 secs. But suddenly the response time goes to 30 secs or even more due to some problem, generating a great impact on thread and resource consumption on OSB side.
Suppose a http time out configuration of 2 secs on the business service is just not enough. OSB continues to crash.
You can use OSB throttling feature but doing that you have to fix a maximum concurrency.
If the service implementation is down, OSB can handle that using "Offline Endpoint URIs" in the operational settings of sbconsole. But in this situation the service is online accepting requests. It's just slow to respond.
This is a hypothetical situation just to stress the problem.
Besides business service time-out configuration and throttling and dispatch-policies on proxy/business services are there any other features that can be used ?

Wesley,
Ok, once the business service request is sent, the thread is freed. When the response comes, a new thread is picked up to handle the business service response. So in the mean time there's no blocking thread. Yes. It is correct.
Just to make sure, what about the waiting synchronous http client calling the proxy service ?
I mean, this fire-and-forget feature works only on the business service side or entirely for the proxy/business service (That separation would not make sense I suppose) ? The same case with http proxy. The request thread will be used till the BS is invoked in the route node or end-of the request pipeline. After this thread is released. Once the response comes from the http bs on a different thread, that thread will be used till the end of the responsepipeline
eg
Client---->Http Proxy---->Thread1{Request Pipeline--->Routenode---->End of Request actions in the Routenode--->Call BS Request} ----->Thread2{BS gets response--->Response Pipeline --->send response back to the client}
For example, a http client is waiting for the proxy service response, but while the business service does not respond, there is no blocking thread at all in the proxy service side too ?Yes. That is true
So, there could be many waiting http clients calling this proxy service, all http business service requests sent, and no blocking threads ?Yes.
What would be the drawbacks of this feature ?Nothing I can think off. Therotically we will be forced to do extra over head when BS latencies are low which might of little practical impact. In that case you can change QOS=Exactly once. BS request and response will be on the same thread , but proxy response thread will be always different from that of proxy request thread no matter what the QOS is set
Cheers
Manoj

Oracle service bus and composing two web services

All,
Do let me know your thoughts on this.
Currently we have two web services
Web Service 1 - Verify Eligibility
Web Service 2 - Approve Proposal
Web Service 1 has one operation and accepts a well defined set of input parameters similarly web service 2 also exposes a single operation and accepts a set of input parameters.
These are deployed and running in our environment.
Now we have a requirement to stitch together these two web services and expose them as one single composite web service on the Oracle Service Bus 11g.
I want to create a proxy service on the OSB as unified web service (having its own WSDL) by composing the operations and input plus output parameters of the aforementioned two web services.
This way we can publish the WSDL to the front-end apps and they will trigger it with the required parameters and the proxy service will orchestrate the call to WS1 and WS2 and send the final output back to the calling client.
I was able to create an outbound call from the Proxy service to the underlying business services but I am not able to expose the Proxy service as web service with a WSDL i.e. create the proxy service by choosing operations of Web service 1 and web service 2
Please let me know your thoughts on this.
Regards,
Sushant

Thanks Atheek
The proxy service I tried to create orchestrate 2 web services.
But where we are struggling is How can i make this proxy service (composite) as a web service along with the WSDL.
The proxy service should be able to accept calls from the client with set of inputs representing both the underlying web services and coordinate calls b/w these two services and return consolidated output back to the calling client.
I am not finding a way to create a proxy service (web service along with the wsdl) which is representative of the underlying web services in a consolidated manner that can accepts inputs on behalf of both the underlying web services, orchestrate calls b/w the 2 web services and return the final output back to the calling client.
example modified to keep it brief
web service1
operation name: Verify Eligibility
Input: Complex type (String name, int Id, String address)
Output: Complex type(String approval status, int Id, String reason)
web service2
operation name: Approve Proposal
input: Complex type(String approval status, int Id, String reason, int Amount, int EmployeeCount)
Output: Complex type (String final status, String recommendation)
Composite Proxy Web Service
name: Composite Eligibility and Approval
Input: Complex type ( String name, int Id, String address, int Amount, int EmployeeCount)
Output: Complex type(String approval status, int Id, String reason,String final status, String recommendation)
The composite proxy should be created in a manner to jam the inputs of both the underlying web services and expose a representative interface on behalf of both the web services. This composite web service interface creation (WSDL) is where we are struggling a bit.
Because the calling clients need a unified WSDL to able to communicate with the composite web service.
Do post your thoughts.
Thanks Again,
Sushant

Service Callout to HTTP Post Business Service?

Hi,
I have created a "Business Service" with following config,
1) Any XML Service
2) Prtocol- HTTP
3) HTTP Request Method- Post.
I have created a Proxy Service , which is "Any XML Service" based on HTTP ptotocol.
inside the message flow of proxy service i am routing to the Above Business Service passing query parameter. The business service returns an XML.
How do i make a service callout to the business service assing a query string?
I need this functionality to work because i have to call multiple business service (endpoint is a jsp which accepts query string) inside a proxy service and retreive xml from response , merge them and send it back to the client(invoking proxy service).
Thanks,
Anup

Hi Gregory,
In fact when i used route node to invoke a business service i modified "URL dynamically by setting the value in the pipeline variable $outbound", it worked here.
Same i tried on Service Callout, it did not work. Also when we create a service callout action it expects us to select either "confugure soap body" or "configure payload document" followed by
1) Request Document variable
2) Response Document variable.
What parameter should i set for above fields?
Thanks,
Anup

Oracle Access Manager Cache Flush issue

Need urgent help on this.. We have multiple access servers and 2 policy managers. I am able to flush cache from one of the policy manger the other but get the other one is unable to flush cache on all the access servers. Getting error that "following access server cannot be contacted" with list of some access servers. I am successfully able to make telnet connection to all the access servers. Any suggestions on what may be the issue.
Thanks.
VInay

Hi Vinay,
Please check that the transport mode (open/simple/cert) is the same of the Access Servers that it is trying to contact, and that the Policy Manager certs are valid (if simple/cert, obviously). Another idea - if the failing Policy Manager is on a different subnet from the Access Servers, it may be timing out trying to contact them.
Regards,
Colin

Unable to call BPM process webserivce from Proxy in oracle Service bus

I created business service in oracle service bus through BPM process WSDL. later Created proxy out of business service. In proxy service MessageFlow I created a route node with service as my BPM process business service. When i invoke proxy I am always getting the following error.
Request :
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:proc="http://bea.com/albpm/Sapme_test_1/Process">
<soapenv:Header/>
<soapenv:Body>
<proc:startSession>
<password>Participant</password>
<user>Participant</user>
</proc:startSession>
</soapenv:Body>
</soapenv:Envelope>
Response :
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<soapenv:Fault>
<faultcode>soapenv:Server</faultcode>
<faultstring>BEA-380000: General runtime error: socket write error: Connection aborted by peer</faultstring>
<detail>
<con:fault xmlns:con="http://www.bea.com/wli/sb/context">
<con:errorCode>BEA-380000</con:errorCode>
<con:reason>General runtime error: socket write error: Connection aborted by peer</con:reason>
<con:location>
<con:node>RouteNode1</con:node>
<con:path>request-pipeline</con:path>
</con:location>
</con:fault>
</detail>
</soapenv:Fault>
</soapenv:Body>
</soapenv:Envelope>
I tried the same example with general webservice instead of BPM Process it is working fine.
regards,
pv

Even Some times I am getting the following error
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<soapenv:Fault>
<faultcode>soapenv:Server</faultcode>
<faultstring>BEA-380000: BAD REQUEST</faultstring>
<detail>
<con:fault xmlns:con="http://www.bea.com/wli/sb/context">
<con:errorCode>BEA-380000</con:errorCode>
<con:reason>BAD REQUEST</con:reason>
<con:location>
<con:node>RouteNode1</con:node>
<con:path>response-pipeline</con:path>
</con:location>
</con:fault>
</detail>
</soapenv:Fault>
</soapenv:Body>
</soapenv:Envelope>
regards,
pv

Query regarding the tutorial for Oracle Service Bus (OSB 10gR3)

Hi,
I am working on a tutorial of Oracle Service Bus (OSB 10gR3).
I have created the proxy service and the Business Service, using Oracle Service Bus console.
The details are as follows:
Proxy service: LoanGateway
Business service1: A value of 4.9 or less causes the message to be routed to the ManagerLoanReview business service.
Business service2: A value of 5.0 or greater causes the message to be routed to the NormalLoan business service.
When i send the request message, so that it gets routed from proxy service to one of the business service than it gives following error.
Request Document
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
</soap:Header>
<soapenv:Body>
<exam:processLoanApp xmlns:exam="http://example.org">
<loanRequest xsi:type="java:LoanStruct" xmlns:java="java:normal.client" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<java:Name>Smith</java:Name>

<java:SSN>1234567</java:SSN>

<java:Rate>4.1</java:Rate>

<java:Amount>9000000</java:Amount>

<java:NumOfYear>10</java:NumOfYear>

<java:Notes>Manager Loan Application Review Service</java:Notes>
</loanRequest>
</exam:processLoanApp>
</soapenv:Body>
</soapenv:Envelope>
Response Document
The invocation resulted in an error: .
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<soapenv:Fault>
<faultcode>soapenv:Server</faultcode>
<faultstring>
BEA-380002: Tried all: '1' addresses, but could not connect over HTTP to server: 'localhost', port: '7021'
</faultstring>
<detail>
<con:fault xmlns:con="http://www.bea.com/wli/sb/context">
<con:errorCode>BEA-380002</con:errorCode>
<con:reason>
Tried all: '1' addresses, but could not connect over HTTP to server: 'localhost', port: '7021'
</con:reason>
<con:location>
<con:node>RouteNode1</con:node>
<con:path>request-pipeline</con:path>
</con:location>
</con:fault>
</detail>
</soapenv:Fault>
</soapenv:Body>
</soapenv:Envelope>
Response Metadata
<con:metadata xmlns:con="http://www.bea.com/wli/sb/test/config">
<tran:headers xsi:type="http:HttpResponseHeaders" xmlns:http="http://www.bea.com/wli/sb/transports/http" xmlns:tran="http://www.bea.com/wli/sb/transports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<http:Content-Type>text/xml; charset=utf-8</http:Content-Type>
</tran:headers>
<tran:response-code xmlns:tran="http://www.bea.com/wli/sb/transports">1</tran:response-code>
<tran:encoding xmlns:tran="http://www.bea.com/wli/sb/transports">utf-8</tran:encoding>
</con:metadata>

I have the same problem and I'm not able to telnet localhost on port 7021. How can I change this port number I think that port must be 7001, it is correct?Examples server domain is pre-configured for port 7021. The samples domain will have the examples properly deployed in this domain out of box. You dont need to change any thing in {BEA_HOME}\osb_10.3\samples\domains\servicebus\config.
I doubt this has to do something with firewall . Check the last statement in the log after starting the domain.
<May 19, 2009 8:50:09 AM IST> <Notice> <Server> <BEA-002613> <Channel "Default" is now listening on 10.177.242.25:7001 for protocols iiop, t3, ldap, snmp, http.>
<May 19, 2009 8:50:09 AM IST> <Notice> <Server> <BEA-002613> <Channel "Default[1]" is now listening on 127.0.0.1:7001 for protocols iiop, t3, ldap, snmp, http.>
<May 19, 2009 8:50:09 AM IST> <Notice> <WebLogicServer> <BEA-000331> <Started WebLogic Admin Server "AdminServer" for domain "base_domain" running in Development Mode>
<May 19, 2009 8:50:09 AM IST> <Warning> <Server> <BEA-002611> <Hostname "mneelapu", maps to multiple IP addresses: 10.177.242.25, 127.0.0.1>
<May 19, 2009 8:50:09 AM IST> <Warning> <Server> <BEA-002611> <Hostname "XYZ-v411-10-177-242-25.oracle.com", maps to multiple IP addresses: 10.177.242.25, 127.0.0.1>
<May 19, 2009 8:50:09 AM IST> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to RUNNING>
<May 19, 2009 8:50:09 AM IST> <Notice> <WebLogicServer> <BEA-000360> <Server started in RUNNING mode>
What are you seeing in your log file?
Edited by: mneelapu on May 19, 2009 9:58 AM

Tuxedo 11gR2 and Oracle Service Bus

Windows platform (2008 r2)
Hi
I am looking to call a number of web services on an Oracle Service Bus.
Do I need to use SALT? If so, is there a license cost associated wth this?
What other options do I have?
Thanks in advance.
M

Hi MI,
Well the general usage of OSB involves creating service definitions as the services themselves (business services as they are called in OSB) are actually someplace else. OSB acts as an intelligent proxy for those services. So for the client side, i.e., the caller of the service, you define a proxy service that the client can then call using whatever transport was chosen. So if you need to have a web services (SOAP/HTTP) client call a service, you define a web services proxy. Likewise if you need a JMS client to call the service, you create a JMS based proxy service. On the server side, you then create a business service which tells OSB how to call the actual service. A pipeline is then defined that describes how the proxy service is connected to the business service. This "connection" may define payload transformations, synch to asynch mediation, routing, failover, etc. that need to occur. The pipeline also describes the reply path as well, so transformation, message enhancement, etc., can all occur on the service reply message.
There used to be examples that shipped with OSB, and I assume there are still some. The Tuxedo Transport ones may have been moved to OTN. Try searching this forum or the web for OSB Tuxedo Transport samples if you need them.
Regards,
Todd Little
Oracle Tuxedo Chief Architect

Caching in OSB with Business Service

Hi All,
I am done with business service development, but I need to configure caching to fetch the data from cache if TTL (Time to Live) <24 if is more then my request to interact with the database can please help how I can I do it, as I am new to caching concept.
Thank You,
Vinay Kumar

Hi Vinay, Select the Business Service - Message Handling Configuration - in Advanced Settings section, you can configure caching for the business service; select Result caching as Supported, and specify cache token (unique key) and expiration time (TTL). Note- once the TTL exceeds for a particular data, the business service will fetch the result from the target system/database and cache it, and the cycle repeats (no specific configuration to be done for this). Also, before configuring the above, first enable the caching globally in OSB; go to Operations - Global settings - select Enable Result caching, and activate the changes.

How to enable cache on Business service having protocol other than JCA

Hi all,
In my use case I should use cache on my business service which uses Http as its transport protocol.
when I try to use the cache on http business service I am unable to use the cache functionality.
When I try to use the cache on JCA business service I am able to use it. Please help me in finding the
ways in which I can enable cache functionality on the business service which uses the other protocols.
Thanks,
Phanindra.

Caching in Business Service should work fine on HTTP transport as well. What all configurations have you done in your HTTP business service and how are you testing it?

Using a uddi key to create a business service in OSB

I want to be able to use a service registry key when creating a business service in OSB. I've found documentation on how to do this in Oracle ESB, but not in OSB.
From the documentation for OSB, I can only find a way to synchronize the business services imported from the service registry (when i search through the imported services there is no mention of the uddi key that i can see). I can choose to auto-import when setting up the registry, but I'm not sure exactly what this behavior does.
From the console documentation (http://download.oracle.com/docs/cd/E13159_01/osb/docs10gr3/consolehelp/uddi.html)
"You can use the Auto-Import Status page to synchronize changes to a service with those present in the registry. Upon any changes to a service in the registry, Oracle Service Bus provides notification of the change on the Auto-Import Status page which lists all out-of-sync services. You can then synchronize the service in the Oracle Service Bus Console with the corresponding service in the UDDI registry."
This setting seems to automatically update the endpoint of the business service wihtout that administrator having to do anything, but what is actually being done? Is the service bus updating the endpoint as soon as it has been notified of a change or when i view/call the service is the endpoint being looked up?
Am I missing something??
Edited by: user498458 on Apr 27, 2009 11:30 AM

I took your advice and re factored the Receive class so it had all the functionality I needed except two methods which would then be overridden in the derived classes. What I had a hard time understanding is once an object of class say SpecialReceive extends Receive it can be referred to as Receive yet still maintain that it's a SpecialReceive.
What I mean is if I give a Receive object to some method and this method has no idea that this object is actually SpecialReceive and it calls a method say run() which gets overridden by the SpecialReceive. I thought that since this method has no idea what type of Receive this object is it will execute Receive's run(). But it actually does know what type of class it is and it executes the right run() method (the one that SpecialReceive overrides).
After I realized this there is no more need for casting.
Thanks everyone for your contributions.

Sign Body with a concrete certificate on Business Service in OSB

We want to use in our programs an external ws, and this require that the body of the message goes signed.
For make easier the use of this service in our programs, i would like this sign is made by OSB (Oracle Service Bus).
Then..
1.- I Have configured the keystore of OSB with the certificated.
2.- I have made the business service, with the end-point the external ws.
3.- I Have configured the sign-body ws-policy in business service.
4.- When i prove it with debug console of OSB, i select the keystore provider and it works fine.
The problem is:
when i make the proxie service from the business service, it seems that the business service give the requeriment to the proxi for sign the body.
and what i want is publish the proxie service, without this requirement, and sign the body en the same proxie with de determined key provider...
The problem is:
When i make the proxie service from the business service, it seems that the proxie service inherits the requeriment for sign the body.
and what i want is publish the proxie service, without this requirement, and sign the body en the same proxie with key provider...
In Other word, i would like the body message was signed by proxie service, and not by programs.
I don't know how configure it on OSB.. ¿Can anyone help me?
Thanks
I don't know how configure it in OSB.. ¿Can anyone help me?
Thanks

Hi 990437 ,
want to replace the directory path with a variable.. and i am calling this service in my proxy service using service callout.Inside service callout -- Request Actions -- use Routing Options action and assign variable in URI expressions
OR if you are using JCA File adapter
Inside service callout -- Request Actions -- use Set Transport Headers action
Set Transport Header for Outbound request and add Header.Browse to jca.file.Directory from dropdown box in header and assign the new new directory location
( variable ) in under Action -- Set Header --Expression
Regards,
Abhinav Gupta

Replace E1- Adapter with Business Services

Hello,
We are using E1-adapter to communicate with web Methods ( like calling business function, table IO etc..), now we are planning to replace E1- adapter with Business Services. We are using tools 8.98.11 and Application Release E812.
Question is , is it possbile to create a wraper to call any business functions just like E1-adapter? Any help is greatly appriciated.
Thank you.
Edited by: user3448054 on Oct 12, 2009 1:09 PM

Yes, you can use the JDE Business Service Server to simulate the E1-Adapter associated with webMethods. Oracle provides out of the box Business Services for a majority of the E1 transactions. We have implemented Business Services Server with our webMethods and it is working very well.
-Eric

Oracle service bus cache flush/clear - business service

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