[lttng-dev] relayd TCP reconnect?

Jérémie Galarneau jeremie.galarneau at efficios.com
Wed Mar 25 14:14:27 EDT 2015

On Wed, Mar 25, 2015 at 11:16 AM, Jesper Derehag <jderehag at hotmail.com> wrote:
> Hi All,
> I know the issue with relayd reconnects have been discussed earlier here:
> http://lists.lttng.org/pipermail/lttng-dev/2014-October/023650.html
> But has there been any further development on this?
> I would actually go as far as calling it a bug and submitting it to redmine tracker, but want to get approval here first.

Hi Jesper,

There has been no work done on this yet.

> I would argue that its *always* a good idea to do reconnects due to that you really dont have any end-to-end control of the TCP flow.
> Some random router might decide to spuriously drop your connection, not to mention more modern queuing disciplines which might randomly throw away packets.
> On automated systems, that would mean that you have to somehow automagically detect that you got a disconnect, and then externally restart the session, which seems like a very weird workaround...
> I would be happy to file such a issue to the tracker if people thinks its a good idea, (and depending on if I have the time I *might* look into solving it myself).
> But it might be some time away in that case..

Sure, feel free to open a ticket. We'll definitively have to look into
recovering gracefully at some point.


> Regards,
> Jesper
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> lttng-dev at lists.lttng.org
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Jérémie Galarneau
EfficiOS Inc.

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