Marcin Grzejszczak created KAFKA-15191:
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Summary: Add support for Micrometer Observation
Key: KAFKA-15191
URL: https://issues.apache.org/jira/browse/KAFKA-15191
Project: Kafka
Issue Type: New Feature
Reporter: Marcin Grzejszczak
I'm a co-maintainer of Spring Cloud Sleuth and Micrometer projects (together
with Tommy Ludwig and Jonatan Ivanov).
The idea of [Micrometer Observation|https://micrometer.io/docs/observation] is
that you instrument code once but you get multiple benefits out of it - e.g.
you can get tracing, metrics, logging or whatever you see fit).
I was curious if there's interest in adding Micrometer Observation support so
that automatically metrics, spans could be created and tracing context
propagation could happen too. In other words metrics and tracing of this
project could be created + if there are Micrometer Observation compatible
projects, then they will join the whole graph (e.g. Spring Framework 6, Apache
Dubbo, Resilience4j, Apache Camel etc.).
If there's interest in adding that feature, I can provide a PR.
Regardless of whether there's interest in adding this directly to Kafka I would
like to discuss what would be the best way to add instrumentation to Kafka.
Adding instrumentation means before the message is sent to Kafka I would like
to access its headers and be able mutate them, and before the message is
received from Kafka I would like to access the headers and retrieve its
key-values to create e.g. a span.
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