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Status Not under consideration
Workspace CICS Transaction Gateway
Categories Runtime
Created by Guest
Created on Nov 6, 2019

RELATED IDEAS

Implement console command to allow the setting of CTG agteway health in WLM

We are looking for a method to control new workload connections to not go to certain CTG gateway regions without needing to cycle gateway regions which will cause failing application requests.

This request is to extend the already existing command APPL=HEALTH,RESET and allow us to set a number like 0 instead of RESET to let CTG know WLM this CTG region is not eligible for new connections.

Idea priority Urgent
  • Guest
    Reply
    |     Apr 13, 2020

    CICS TG team does not have plans to implement this RFE in near future and so this requirement is being declined at this point. The requirement will be kept in the RFE system and might be reassessed in the future. You also have an opportunity to resubmit in twelve months time if you wish it to be reconsidered then.

  • Guest
    Reply
    |     Nov 19, 2019

    If an option is provided to reset HEALTH of a gateway to zero, then the new requests only get impacted during z/OS WLM routing. CICS TG uses zOS TCP/IP port sharing by providing gateway health dynamically to the z/OS Workload Manager(WLM). z/OS WLM will take routing decisions based on gateway healths for new connections only. So the existing connections will continue to use the same gateway until client application closes the connection or the connection is closed by the CICS TG after idletimeout. If the connections are used continuously, then the idletimeout scenario never happens. The way to influence the load balancing decisions is to recycle the connections from client connections (like agedtimeout setting in WebSphere application server connection pool settings). Let us know if it is possible to recycle the connections from client applications.

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