Hi Georg,
a good first step is to run lttng-session with `-vvv --verbose-consumer`
and inspect the log file and `LTTNG_UST_DEBUG=1` in the environment.
It may also be useful to run your traced applications with
`LTTNG_UST_DEBUG=1` set in the environment.
Do you have steps that reproduce the issue? E.g., all the commands to
set up the tracing session and so forth.
thanks,
kienan
On 6/19/25 10:58 AM, Georg Muck via lttng-dev wrote:
Hey,
I am using the LTTng tracer (2.13.11, C-API, rotation=1s) to trace my ROS2
system (userspace only). Everything works just fine within my Docker
Container (Ubuntu 24.04), but if I start the same procedure on the host
itself (also Ubuntu 24.04), it does not create a TraceFile if to many
tracepoints occur (speaking of roundabout 1500+ per second) (sometimes it
malformed the tracefile, but I was not able to recreate that. If I remember
correctly, Babeltrace2 threw an error that said that there was no
metadata-file). I played around with some configurations (like increasing
the buffer size from ~16kB to ~512kB or a less aggressive rotation), but
the problem stayed.
Would be thankful for help. I guess I delivered to less information, please
reach out what is interesting at this point, I am not sure about that :).
Best regards,
Georg
Never burn the bridges before you
If you've burned the bridges behind
Never burn the one that you're walking upon
Or you're sure to hit the water in time. *(Savatage, Streets, 1991)*
