Skip to main content

When Why to use Work Managers in Weblogic

"If you do nothing on dispatch policies in OSB proxy or business services, all is done in the Default Workmanager. But since some constructions, not only service call-outs, need other threads to finish the job, you can get stuck threads because the workmanager's threadpool gets empty having all or near to all threads waiting, leaving no threads to pickup work to free the others. 

If all threads in the default queue become stuck, the server changes its health state to "critical.

If all threads in weblogic.admin.HTTP, weblogic.admin.RMI, or a user-defined execute queue become stuck, the server changes its health state to "warning.

Work Managers have a Ignore Stuck Thread options that gives the ability to execute long running jobs. "

Based on our need we can create one of following work manager's:

For OSB to work optimally and prevent floading WebLogic’s threadpool with hogged/stuck threads you should create 3 FairShareRequest classes in ratio of 33/33/33, to distinguish different “kinds of threadpools”. 

Then create 4 workmanagers:

  • FTPPollingWorkManager: file based inbound OSB proxy services. Polling a filesystem (or FTP). Uses FairShareReqClass-1, and ignores stuck threads.
  • InboudWorkManager: inbound OSB proxy services, not polling file based. Also uses FairShareReqClass-1, not ignoring stuck threads.
  • CallOutWorkManager: Service Call Out operations in a OSB proxy. Uses FairShareReqClass-2.
  • DeliveryWorkManager: outbound business services in OSB. Uses FairShareReqClass-3.
 

https://docs.oracle.com/cd/E23943_01/dev.1111/e15866/architecture.htm#OSBDV1279

https://blogs.oracle.com/reynolds/following-the-thread-in-osb


Labels:

Comments

Post a Comment

Popular posts from this blog

Dynamic Routing in OSB 12C

Dynamic Routing in OSB cab be used when the BusinessService endpoint required to be determine at runtime in message flow. Consider a scenario where OSB has to route the incoming requests to 2 different services based on the CustomerType element value sent in the payload. So create a XQuery resource with the following contents. Observe that we are using the absolute path of business service in configuration as required by dynamic routing. Following is the XML schema that we use:>>  Customer.xsd <?xml version="1.0" encoding="windows-1252" ?> <xsd:schema targetNamespace="http://xmlns.oracle.com/schema/Customer" xmlns:xsd="http://www.w3.org/2001/XMLSchema"             xmlns:ns1="http://xmlns.oracle.com/schema/Customer">   <xsd:complexType name="Customer">     <xsd:sequence>       <xsd:element name="CustomerId" type="xsd:string"/>       <xsd:elemen
14 comments
Read more

Oracle SOA 12C rest adapter with Custom HTTP headers

Most existing web applications are connected through web services, which are commonly known as SOAP services. More and more users are relying on mobile devices for communication, and they’re looking for lighter ways to access enterprise information on the go. REST services are the answer for the mobile device platform, because they get rapid responses and fast access to data. Oracle SOA Suite 12 c  provides a complete set of service infrastructure components for designing, deploying, and managing composite applications. Oracle SOA Suite 12 c  enables services to be created, managed, and orchestrated into composite applications and business processes. Some time we have need to send HTTP headers in REST service, In OSB we use header component and add what ever is needed but in oracle SOA 12C it's little bit different. Let see how we can do it. Create one SOA Application. Create one SOA Sample project inside SOA Application. Go to composite and drag drop REST adapt
22 comments
Read more

Swagger API document from Any WADL & Schema in Oracle SOA

Hi everyone, Hope everyone is doing well these days, Recently i started a project work over how to generate swagger API document for your any REST API, In case if you don't know what is swagger please go and check " https://swagger.io/tools/swagger-editor/ ". It's a great and easy to use tool which will help to create user friendly, human readable form API documentation with extension for generating API client in different languages with capability of testing your API from same. What is swagger editor, Design, describe, and document your API on the first open source editor fully dedicated to OpenAPI-based APIs. The Swagger Editor is great for quickly getting started with the OpenAPI (formerly known as the Swagger Specification) specification, with support for Swagger 2.0 and OpenAPI 3.0.  What benefits you will get by using swagger, Runs Anywhere, The Editor works in any development environment, be it locally or in the web. Smart Feedback, Validate you
8 comments
Read more