[lttng-dev] [RFC lttng-tools] Snapshot

David Goulet dgoulet at efficios.com
Thu Apr 11 12:18:22 EDT 2013

Jérémie Galarneau:
> Looks great! A few very minor points:
> In the "Motivation" section, English mistake: "could be particularly
> useful *with in* flight recorder mode" should be "could be
> particularly useful *in* flight recorder mode". Also, "informationS"
> is generally regarded as incorrect. Information has no plural form.
> In the "Proposed Solution" section, "the lttng command line UI new
> command is presented" should be "the new lttng command-line UI command
> is presented".
> I'd propose rewriting the sentence "Unlike the other lttng command,
> this one uses the git alike UI but in the form of the object first and
>  action after where previous command only use action such as
> "enable-event" as
> "This new command uses a git-alike UI, but in the form of the object
> first followed by the desired action, whereas other commands only use
> actions such as "enable-event"".
> I'm not sure I would use an hyphen in "lttng snapshot list-output"
> when an output alias is present. That's an entirely subjective but it
> would seem more consistent with git (git remote -v, for instance).

What output format do you propose?

> Could you clarify what the expected behavior would be when no session
> name is provided to "lttng snapshot record"? I guess it would capture
> a snapshot for every session created with the --no-output option.
> Also, what happens if a single URL is provided and no session name is
> given (with multiple active flight recorder sessions)?

lttng command always work on the current session if none is defined.
I'll make it clearer in the RFC.


> Thanks,
> Jérémie
> On Thu, Apr 11, 2013 at 11:16 AM, David Goulet <dgoulet at efficios.com> wrote:
>> Hi everyone,
>> This is the initial RFC for snapshot in lttng-tools. Once accepted, it
>> will be available in "doc/proposals/0006-lttng-snapshot.txt".
>> Any questions, comments or fixes are VERY welcome. There are probably
>> English mistakes so feel free to point it out to me.
>> Thanks!
>> David
>> _______________________________________________
>> lttng-dev mailing list
>> lttng-dev at lists.lttng.org
>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> --
> Jérémie Galarneau
> EfficiOS Inc.
> http://www.efficios.com

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