Issue while logging MDC values with Jetty 12

[narharim]

Jetty version(s)

Jetty 12.0.8

Jetty Environment

core

Java version/vendor (use: java -version)
Amazon Corretto 17.0.9

OS type/version
Ubuntu 22.04.4 LTS

Description

We have a service A that initiates an API call to another service B. In response service B transfers zip file in chunk to service A. We have written a custom response listener which transfer chunk from service A to its client without storing it in buffer.

while doing so when ever connection is aborted from client of service A, key-value pair which we are inserting into MDC map are getting cleared out and we are unable to log those key-value.

for example
MDC.put(ABORTED, "true") is not printed in log

logback-access version
2.0.2

Note: we are using kotlin as our programming language

How to reproduce?
Attached code for ref
logging.txt
handler.txt

[sbordet]

This does not seem a Jetty issue.

Jetty will (possibly) use different threads to invoke handle(), onContent() and onComplete(), but you seem to take care of this by passing the MDC map around.

If these 3 consecutive lines do not work, then Jetty is out of the picture:

MDC.setContextMap(mdc)
MDC.put(ABORTED, "true")
log.debug("aborted")

Do you have a Java reproducer that we can try?