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Status Not under consideration
Workspace z/OS Connect
Created by Guest
Created on Apr 4, 2024

RELATED IDEAS

Config to limit Thread or Connection usage at API/URL level

We have had multiple high severity incidents where degradation of one service for reasons such as latency, looping, database contentions, deadlocks etc ends up quickly (in matter of seconds) exhausting all available threads within z/OS Connect thereby completely blocking traffic and flow on impacts. to provide better resilience, we are after a simple configuration in zConnect which could enforce limit on the number of threads/connections used by any single API by liberty and any excess requests for the endpoint should be immediately rejected with 5xx error.  We have numerous rate limits in the API management layer but they are unable to protect such issues and we believe there needs to be some level of defense and resilience in zConnect to prevent one service degradation impacting all other services.

Idea priority High
  • Guest
    Reply
    |     May 1, 2024

    The recommendation would mean us as a customer needs to purchase, deploy and manage hundreds and hundreds of servers? We have hundreds of API's, so the recommendation would simply defeats the basics of resilient solutions and the value of such a complicated architecture. Not the response we expected for a critical resilience requirement and i don't understand for such a recommendation as opposed to implement a basic config for product to manage this.

  • Admin
    Demelza Farrer
    Reply
    |     Apr 30, 2024

    This requirement has been evaluated. Looking at current plans, it is not likely that this would be implemented in future zOS Connect releases, so correspondingly
    this requirement is being rejected.

    It is recommended that isolating APIs in seperate servers to achieve this goal.

    You have an opportunity to resubmit in twelve months time if you wish it to be considered then.

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