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Status Not under consideration
Workspace MQ, MQ Advanced & MQ Appliance
Created by Guest
Created on Dec 14, 2023

RELATED IDEAS

Avoid completing the reallocation process in case all sender channels are not running, to decrease CPU consumption

Refer to Case TS014865530 - High CPU consumption during MQ Message Reallocation

As per explanations in the Case,  the cluster message reallocation process is made of 2 steps that scans the transmission queue: the first one checks whether there are messages eligible to be reallocated and the second one to actually move the messages that are allowed to be re-routed. 

This process needs a lot of CPU. 

In case all the cluster sender channels to the remote queue managers are in Retry because the remote queue managers are down, all the 2nd pass through all of the messages is totally useless and consumes a lot of CPU for nothing. Before starting the 2nd pass (or any related heavy process), MQ should be sure that there is a suitable active channel to use to complete the reallocation process.

Idea priority Urgent
  • Admin
    Matthew Leming
    Reply
    |     Mar 18, 2024

    At the moment I am afraid we have no plans to change how the cluster message reallocation processing works.
    As a result we are declining this idea. While declined the idea can still be voted, and commented, upon.


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