[lttng-dev] 'lttng create' does not create the session directory

[Raphaël Beamonte]

2016-06-06 11:16 GMT-04:00 Sebastien Boisvert <sboisvert at gydle.com>:
> Hi,
>
> I am using LTTng to trace an aligner of DNA optical assets that we are
> developing at Gydle Inc. LTTng is very useful.
>
> I installed it with the PPA ("deb http://ppa.launchpad.net/lttng/ppa/ubuntu").
>
> I don't know what has changed in my setup, but since this morning lttng is not
> creating session directories.
>
>
> Z1$ lttng --version
> lttng (LTTng Trace Control) 2.7.3 - Herbe à Détourne
>
> Z1$ lttng create
> Session auto-20160606-101953 created.
> Traces will be written in /home/sboisvert/lttng-traces/auto-20160606-101953
>
> Z1$ ls /home/sboisvert/lttng-traces/auto-20160606-101953
> ls: cannot access /home/sboisvert/lttng-traces/auto-20160606-101953: No such file or directory
>
>
> I have enough disk space.
>
> I am not sure what is causing this.

Hi Sebastien,

If I'm not mistaken, lttng will only create the directory if there is
data to write. Try adding kernel events and start the tracing, you'll
have the directory.

Raphaël

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