Ryan Yeats created ARTEMIS-5438:
-----------------------------------
Summary: Tracing and OpenTelemetry in Artemis
Key: ARTEMIS-5438
URL: https://issues.apache.org/jira/browse/ARTEMIS-5438
Project: ActiveMQ Artemis
Issue Type: Improvement
Components: Broker
Affects Versions: 2.40.0
Reporter: Ryan Yeats
Attachments: Screenshot 2025-04-17 at 3.24.43 PM.png
If a consumer is slow to process a messages it looks like artemis is slow
delivering them. I would like to be able to trace a request all the way through
the entire system and get a comprehensive idea of what is going on and where
latency is being added.
To do this I recently took a look at the example to add tracing support to
Artemis through the plugins API and the ARTEMIS-2028 ticket related to tracing.
The example only would work for anycast messaging its not properly handling
spans for multicast. Resolving that doesn't solve the issues because there
isn't a way to pass the correct traceparent unless your using AMQP specific
DeliveryAnnotation but those aren't in the location or even named the way QPID
expects so in the end that doesn't work either.
Issues:
* Interceptors don't have access to enough context about which consumer is
receiving the message in order to add a the traceparent info specific for that
delivery.
* It's not trivial to implement, I made use of Message.userContext and
MessageReference.protocolData to pass around spans between plugin points. Its
not really how they are intended to be used but it wasn't safe to use Thread
local between the various plugin calls. Its also not clear when or if it makes
sense to include message routing in traces.
* It should not require a specific messaging protocol code to be able to add
trace information we should be able to use the Jms or application properties
and if a protocols has support for traces Artemis should also be able to
support that.
If it makes sense for the interceptors to be passed protocolData then I could
make the tracing work using Artemis plugins but it may be better to modify
Artemis to add support for tracing using micrometer tracing library too but
thats is a much bigger change.
Here are the changes i made to the example for my attempt to add tracing
[https://github.com/apache/activemq-artemis-examples/compare/main...ryeats:activemq-artemis-examples:trace_example]
Attached is an image showing the spans that aren't attached to the correct
parent
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
For further information, visit: https://activemq.apache.org/contact
