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Status Not under consideration
Created by Guest
Created on Feb 15, 2021

Network connections between the two appliances higher 10ms

180 / 5000
Resultados de traducción
we have a couple of appliance. When the latency between the two is greater than 10ms due to network problems, the MQ managers fall in an orderly fashion, not knowing which is the primary appliance

Idea priority High
RFE ID 148619
RFE Product IBM MQ
  • Admin
    Mark Taylor
    Jan 18, 2022

    Closing as no further followup to previous comment and questions.

  • Guest
    Oct 18, 2021

    The MQ Appliance high availability feature supports a network latency of up to 10ms for the replication link. As the network latency increases the synchronous replication of data takes longer and the performance of disk I/O degrades. The MQ Appliance does not support latencies above 10ms for synchronous replication because the performance impact is then too great for the majority of deployment patterns. The appliances can still communicate and exchange heartbeats at higher latencies, so more information is needed to understand why your queue managers were stopped. Can you please clarify your configuration, the network problem you encountered, the behaviour you observed, the behaviour you would like, and the maximum latency that you would like to be supported. Thank you.

  • Guest
    Feb 24, 2021

    In our installation we have network equipment as intermediaries between the appliance pair comunications.

    If a network device has an error, the latency between both mqappliance increases, causing them to stop in an orderly until deciding which appliance should have the MQ managers running.

    What we ask is that the threshold of said latency be configurable or that it can be extended to avoid these problems.

  • Guest
    Feb 23, 2021

    It's not clear from the description what your actual issue is. The 10ms latency is to do with synchronous replication. Network failure/recovery is handled with a different set of timers and counters. Please clarify.