[jira] [Created] (AMQ-7343) Delayed Consumption of Messages

["Dominic Gagne (Jira)" <ji...@apache.org>]

Dominic Gagne created AMQ-7343:
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             Summary: Delayed Consumption of Messages
                 Key: AMQ-7343
                 URL: https://issues.apache.org/jira/browse/AMQ-7343
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.15.10, 5.15.9
         Environment: ActiveMQ version: 5.15.10 or 5.15.9

ActiveMQ configuration: default

Client: C# running in Docker container

Transport: nio+ssl

 

 
            Reporter: Dominic Gagne
         Attachments: ActiveMqTest_Consumption.zip

We recently encountered an issue where a significant delay (often up to 15 seconds) occurs between the time a message is acknowledged by a consumer and the time the next message is received from the broker. This issue only manifests itself until fairly specific conditions, but we do have a reproducible case. The problem occurs when the broker transport `nio+ssl` is used and clients are running in Docker containers. ActiveMQ versions tested are 5.15.9 and 5.15.10. Default ActiveMQ broker configuration can be used (with the exception of the nio+ssl transport). Disabling either nio or ssl in the broker configuration prevents this issue from occurring.

 

Using Wireshark, we analyzed all ingress and egress traffic from the Docker network while the consumer was running. This analysis revealed that there are in fact long periods of no activity on the network, despite the fact that the client immediately acknowledges the message and is ready to receive a new one.

 

We have been able to reproduce this on locally running brokers as well as brokers hosted on AmazonMQ.

 

To reproduce using the attached example:

{{docker build -f ActiveMqTest/Dockerfile-ActiveMqTest -t 'activemqtest' ActiveMqTest/}}

{{docker run activemqtest}}



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