On 11-01-18 07:04 AM, Stefan Hajnoczi wrote:
In order for ustd to be stateless, it should save all the registry information
to disk. If ustd is killed or crashes, it will be able to restart and get the
tracing state back without loosing track of all sessions.
I think the intention here is to avoid losing knowledge of existing
sessions when ustd is restarted? It's not clear what the impact will
be: can in-progress tracing continue while ustd is offline?
What about the robustness of ustconsumerd?
In general it would be interesting to flesh out this section to
explain the details.
The original intention is exactly what you mentionned : "to avoid losing
knowledge of existing sessions when ustd is restarted".
However, this may be done at a next stage of development since it is not
that trivial and add another layer of complexity for now.
Cheers!
David
Stefan
--
David Goulet
LTTng project, DORSAL Lab.
PGP/GPG : 1024D/16BD8563
BE3C 672B 9331 9796 291A 14C6 4AF7 C14B 16BD 8563
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