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Status Delivered
Workspace CICS Transaction Server for z/OS
Categories Runtime
Created by Guest
Created on Oct 30, 2013

RELATED IDEAS

JVM Server Kategory - Dynamic Deployment

At the moment I am trying several things in JAVA with Cics 5.1 and applications and there is one thing more and more I don't like.<br /><br />For every bundle I have to define a JVM server where it runs on. I think this is not realy flexible and not a good way to do it.<br /><br />In my opinion the programmer should normally not know about the JVM Server. He Should only know about the "Server Type". The deployment to a server should be done and decided by the Platform itselfe. The Platform should know about its "Server pool" and should decide by itselfe on which server the application best runs.<br /><br />But there should be also the possibility like it is now to put special applications on spezial server, like it is now.<br /><br />To sum up I think there must be three scenarios on the bundle definition:<br /><br />1) a default Server pool with a default Pool name<br />2) defined Server pools with defined Pool names (for grouping applications)<br />3) a spezial defined Server (like now)

Idea priority Medium
  • Guest
    Reply
    |     Jan 5, 2016

    CICS TS 5.3 which is generally available as of December 11th 2015 provides a partial solution , ie a solution for the deployment scenario. Variable substitution allows the developer to give a logical name for the JVMSERVER into which their components (OSGI or Liberty) should be deployed. At build or deployment time (using CICS BT --resolve and a .properties file or application binding override) that variable can be resolved to a physical name. There can be different .properties files for different environments / platforms.

  • Guest
    Reply
    |     Oct 5, 2015

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Transaction Processing
    Product - CICS Transaction Server

    For recording keeping, the previous attributes were:
    Brand - WebSphere
    Product family - Transaction Processing
    Product - CICS Transaction Server

  • Guest
    Reply
    |     Jan 8, 2015

    We have the same Feeling here. Application developers should never have a direct dependency to a specific infrastructur and names.
    As Peter mentioned there shoul be meta data to describe a certain need for a specific runtime environment in a JVMServer.

  • Guest
    Reply
    |     Jul 21, 2014

    Time has passed and after a half year our system has grown, and the use cases have changed. This is why I want to update this RFE.

    At a point of futur thinking of myselfe it is very important for IBM to introduce a now logical server artifact. As I see it the Cics Lab has stared to seperate the logical and the phisical layer inside Cics. This is a very important as this makes a lot of sence to this RFE.

    At the moment each application has the phisical Liberty Server in the bundle. The better way would be to define a logical Liberty on the platform and this logical Liberty is pointing to a physical Liberty and "tada" you have your Liberty Server Kategory.

    Now it would be possible to do the same what a local Liberty does. Here you have a Defaultserver and a second one, a third one,.... and so on.

    The scenario would be I have 1 to n phisical Libertys in Cics. On the platform the system programer defines a logical Liberty which is pointing to the phisical one. The handling for a logical one is the same than on a local Liberty. Cics would create a new instance inside the phisical Liberty.

    If the system programmer sees there is an application which needs to shift to another phisical Liberty, he can create a new platform, and tell the logical liberty now your phisical instance is the other logical, install the platform and all the applications work fine without a change.

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