A technote was published for customers who use the WebSphere Adapter for JDBC for inbound processing of an SQL Server 2000 database. Apparently, the adapter will lock the entire event table (bad!). The ‘fix’ aka workaround is to use a view to the event table and then set a custom property inside the adapter.
Tip: WebSphere Process Server – Do not delete the ‘tranlog’ on a production server
In development mode, one of the steps to ‘clean up’ from a wonky process server instance is to delete the wstemp, temp directories along with the ‘tranlog’. The ‘tranlog’ is an internal file that WebSphere Application Server uses to manage in-flight transactions and attempt to recover them should the server crash. When you delete the […]
WebSphere Application Server and WebSphere Process Server Fix Lists
A handy resource for seeing what exactly is contained in a new release of software are the APAR fix lists published by IBM. They contain a list of every APAR that is resolved and you can click to get more information. You can find them for: WebSphere Application Server 6.0.2 WebSphere Application Server 6.1 WebSphere […]
WebSphere Process Server: Messages sitting on queues unprocessed
We’re battling another runtime problem. We’re on 6.0.2.3 and WAS 6.0.2.23 and have a situation where our modules that enable Event Sequencing seem to deadlock when trying to pick messages up off the queue. The transactions then time-out in a sea of exceptions. We have a messaging engine cluster (set to 1 of N) and […]
WebSphere Business Integration V6.1 Performance Tuning
Draft Redpaper, last updated: Mon, 9 Jun 2008
– Learn valuable tips for tuning
– Get the latest best practices
– Try the example settings
This IBM® Redpaper was produced by the IBM WebSphere® Process Server, WebSphere Enterprise Service Bus, WebSphere Adapters, and WebSphere Business Monitor performance teams in Austin Texas, Böblingen Germany, and Hursley England.
WB552: Random DataPower Thoughts Part 11a
A web application firewall can provide a service over both http and https without requiring the use of a multi-protocol gateway.
UPDATE: WebSphere Adapter for JDBC: Superfluous RecordNotFound Exceptions
A while ago, I posted about the WebSphere Adapter for JDBC always writing an exception to the System.out when a record could not be found. At the time, we were being told that it was not something that would be fixed in the 6.x timeframe. Suddenly, there has been a change of heart from IBM […]
WB552: Random DataPower Thoughts Part 3
“Root Certificates” are implicitly trusted. The lookup chain of certificates ends at a root cert. These are stored in the pubcert directory. sharedCert is where certificates that we share with other clients are located. When creating a domain, you should always include default as a visible domain. This allows access to the store:// file system […]
WebSphere Integration Developer: Struggling with the Business Object Mapper
I had a custom snippet in my map between two string attributes and a list of business objects. The idea being that each string from the source should becomes an entry in the business object list with a wrapper. No problem. I wrote up the snippet to create the destination business object (since it does […]
Tracking down a deadlock in a WebSphere Application Server V6.1 application
Learn how to use the thread dump facility in IBM WebSphere Application Server V6.1 to
learn about your system environment, investigate whether a deadlock is
happening, and extract information to help you avoid or resolve deadlock
situations with your own applications.
Use ARM to monitor SCA invocations in IBM WebSphere Process Server
This two-part series shows you how to monitor Service Component Architecture
(SCA) invocations using the Application Response Measurement (ARM) standard in IBM
WebSphere Process Server V6.1. You can use an ARM implementation, such as IBM Tivoli
Composite Application Manager for Response Time Tracking, to generate a graphic view
of SCA invocations. This article, Part 1 of the series, starts by describing ARM and
showing you how to debug synchronous scenarios using Tivoli Composite Application
Manager for Response Time Tracking. In Part 2, you’ll get an introduction to SCA
invocation patterns and learn how to debug asynchronous scenarios.
WebSphere Adapter for JDBC: SetObjectKeys NullPointer Exception
We had a WebSphere Adapter for JDBC export in our module, and it was throwing the following exception: [5/27/08 17:55:52:315 EDT] 0000006b NUXInResource I PollEventManagerWorker run() CWYBS0011I: Polling has started. UserAction=No action is required. [5/27/08 17:55:53:356 EDT] 0000006d NUXInResource E com.ibm.j2ca.extension.eventmanagement.internal.EventSender getObjectForEvent(Event) EventStore impl (com.ibm.j2ca.jdbc.inbound.JDBCEventStoreWithXid@6eec3b01) threw an unexpected and unchecked exception javax.resource.ResourceException: EventStore impl (com.ibm.j2ca.jdbc.inbound.JDBCEventStoreWithXid@6eec3b01) […]
Business Object Maps and ‘Required’ Attributes
Just ran into an interesting scenario. We have a business object with a required attribute (amongst a sea of non-required ones). In a business object map, we only set the non-required ones and never set the required ones to any value. In the above example, ‘productStatus’ is required, ‘name’ is not. This is the Mediation […]
Make SOA real with IBM WebSphere Enterprise Service Bus and IBM WebSphere DataPower SOA Appliances
Looking for a way to manage the interoperability among applications using
different protocols that need to exchange confidential data? Consider combining the
functionality of IBM WebSphere Enterprise Service Bus and IBM WebSphere DataPower
SOA Appliances. Find out how you can get a secure, agile, and extendible solution
with a little effort in terms of code.
Web services with SOAP/JMS in IBM WebSphere Process Server
This two-part article series shows you how to use SOAP over Java Message Service
(JMS) in IBM WebSphere Process Server and IBM WebSphere Enterprise Service Bus. Learn
how to set up and use SOAP over JMS as configured by default by the IBM
WebSphere Integration Developer tool and how to enable the use of the IBM WebSphere
MQ JMS provider via configuration. In this article, Part 1 of the series, you create and
invoke a Web service using SOAP over JMS and an end-to-end application example, covering
the full process of creating, building, deploying, and testing the applications.
Scenarios covering both point-to-point and publish/subscribe messaging walk you
through the process. In the second article in this series, you’ll
reconfigure a Web service that uses the SOAP over JMS protocol to enable the use of
WebSphere MQ as the JMS provider and allow the transport of SOAP messages via
WebSphere MQ queues.
WebSphere Integration Developer: Visual Snippet Java Code Generation Is Non-Deterministic
I present the following exhibit: The only difference between these two snippets is the string that I am setting in the commonName attribute. But, let’s look at the java that was generated under the covers for the bottom snippet: boolean __result__31 = (iFlag != null) && (iFlag.trim().equals(“Y”)); if (__result__31){ commonj.sdo.DataObject svcCharVal = __result__34; java.lang.String __result__36 […]
Getting Started with WebSphere Process Server and WebSphere Enterprise Service Bus Part 3: Runtime
Draft Redbook, last updated: Wed, 14 May 2008
– Install WebSphere Process Server
– Build topologies based on patterns
– Prepare for deployment
This book provides new users with information on installing and configuring a WebSphere® Process Server and WebSphere Enterprise Service Bus runtime environment.
Problem Determination and WebSphere Integration Developer
In the past, I’ve gone and de-constructed WebSphere Process Server stack traces in an example of problem determination. Now, I’ll talk about what I do when WebSphere Integration Developer goes crazy. A typical WebSphere Integration Developer exception consists of either a builder error pop up dialog or an issue when trying to open an editor. […]
WebSphere Integration Developer – Namespaces Cannot Span Projects
Say I have a Business Object named BO1, in the namespace “http://www.danzrobok.com/bo” and I have a second business object named BO2, in the namespace “http://www.danzrobok.com/bo”. With WebSphere Integration Developer, I MUST put both of these business objects in the same library or module project. If I split them into two library projects, then I will […]
WebSphere Process Server and RPC/Literal Web Services: Beware Messages defined by ‘type’ instead of ‘element’.
After a ridiculous amount of XML tweaking and bleeding, I realize that RPC/Literal truly is completely broken in WebSphere Process Server v6.0.2.3. On the response message that consists of a Business Object we would constantly get the exception: Caused by: org.eclipse.emf.ecore.resource.Resource$IOWrappedException: Feature ‘MyResultBO’ not found. (sca:/message.xml, -1, -1) The XML from the service looks correct: […]
WebSphere Process Server and an RPC/Literal WSDL : Trench War
I’m currently in a trench war with WebSphere Process Server and an RPC/Literal webservice. The service takes in a simple integer and returns a Business Object. The request works fine, but the response comes back with a ‘FeatureNotFound’ exception referencing the top level business object. I’ve even gone so far as to install SOAP UI […]
BPEL Business Process Versioning – Infocenter Link
Infocenter Documentation on Business Process Versioning WebSphere Process Server Versioning Arricle by Richard G. Brown Just in case you ever get into the scenario where you need to upgrade a business process template that is running on your server. It’s not obvious how it works and it’s an issue you may want to capture at […]
WebSphere Process Server Discussions
The first question kicked off about the use of BPEL for non-business relevant flows. The answer was that it’s not a good idea in the long-term vision and hard evaluation of Java or BPEL should be performed to ensure it’s the right solution. The lack of a store-and-forward capability in the product was the next […]
“Top Best Practices for Implementing WPS Solutions”
I haven’t heard of SIMM Levels before this presentation but they appear to be interesting statements about maturity. Talking about service quality, “You can’t mediate faster”. ISO9126 was also mentioned: ISO 9126 is an international standard for the evaluation of software quality. Don’t use relationships for configuration or rules. It doesn’t fit the use-cases of […]
IBM Redbooks: WebSphere Process Server and WebSphere Integration Developer
I was recently asked about where to find resources on WebSphere Process Server and WebSphere Integration Developer in order to pass certification tests 093 and 094. I responded to basically search developerworks for articles along with IBM RedBooks. I didn’t really like responding without concrete links, so I did a little browsing of the site […]
WSDL Anti-Pattern: xsd:Any and xsd:AnyType To Encapsulate Future Changes
The cousin to yesterday’s WSDL Anti-Pattern: The ‘Single XML String’ Service is the use of the XSD specification’s ‘any’. ‘Any’ literally means “any well-formed XML contained in this section is valid”. ‘anyType’ means “any valid XSD Type”. We can start to see the correlation between the Single XML String service and the use of these […]
WebSphere Default Messaging (SIBus) and WebService Error Handling
An interesting situation arose the other day for a solution to the following requirements on WPS 6.0.2.3: We have a JMS queue that collects message for a web service Endpoint. We have a web service that is only available during business hours (say 9-5). If we send a request outside business hours, we will get […]
Getting Started with WebSphere Process Server and WebSphere Enterprise Service Bus Parts 1 & 2
Draft Redbook, last updated: Fri, 18 Apr 2008
– Build business integration applications
– Build mediations
– Use adapters
This book provides developers with information on building and testing applications for WebSphere Process Server and WebSphere Enterprise Service Bus.
Avoid the WebSphere Integration Developer Debugger
Yesterday, I had a non-descriptive NullPointerException occur within a visual snippet sub-map in WebSphere Integration Developer. The only message written to the log was something that identified which transformation in the sub-map failed. There was nothing about what line was bad. Rather than filling my code full of “Got Here” and “Did this Runs”, I […]