[lttng-dev] tracing user event from multiple dockers

Kienan Stewart kstewart at efficios.com
Mon Mar 4 10:11:56 EST 2024


Hi Zvika,

To share a sessiond the LTTng home and run directories, and the shared 
memory should be shared between the containers.

Eg. https://github.com/mjeanson/gcloud-lttng/blob/master/pods/demo1.yaml.in

In a scenario with multiple sessionds (eg. one per container), the 
traces could be combined in post using babeltrace.

thanks,
kienan


On 3/2/24 12:31 AM, Zvi Vered via lttng-dev wrote:
> Hello,
> 
> I have an application working with multiple dockers.
> Each docker is a fedora O.S running an application.
> The host is centos 8.5. This host will be upgraded to RHEL 9.2 in the 
> near future.
> Is it possible that all traces from multiple dockers will all be written 
> to one metadata ?
> 
> versions:
> lttng-tools-latest-2.13.tar.bz2
> lttng-ust-latest-2.13.tar.bz2
> userspace-rcu-latest-0.14.tar.bz2
> 
> Thank you,
> Zvika
> 
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