Re: [Feature request] config diff on a single option with the admin socket

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Daniel,

On Wed, Aug 10, 2016 at 9:03 AM, Daniel Oliveira <doliveira@xxxxxxxx> wrote:
> Shinobu,
>
> Sorry, but I am not sure I understand what your request is. If it is
> not related to Sebastien's feature request, we probably would need a
> different one so we can track it properly. Are you referring to a
> *config file parser* kind of thing, where some checking is done to make
> sure settings are in the proper section? Or am I missing something?

Yes, that is exactly what I said.
Does that capabilities make sense?

>
> -Daniel
>
>
>
> On Tue, 2016-08-09 at 19:51 +0900, Shinobu Kinjo wrote:
>> Just question.
>>
>> Do we have already something like config file validation check
>> command?
>> If not, it would be better to add this capability for end users if it
>> would not burden you.
>>
>> Because it's not a bit clear about which option must be in which
>> section.
>>
>> Thoughts?
>>
>>  - Shinobu
>>
>>
>> On Tue, Aug 9, 2016 at 6:52 PM, Sebastien Han <shan@xxxxxxxxxx>
>> wrote:
>> > Thanks a lot Daniel, that looks exactly right.
>> > If nothing changed I think it's valid to keep both fields showing
>> > the
>> > same value.
>> > This is either when comparing with whatever tool because the
>> > structure
>> > won't change so we don't have to handle a particular case.
>> >
>> > Others? Thoughts?
>> >
>> > On Tue, Aug 9, 2016 at 4:38 AM, Daniel Oliveira <doliveira@xxxxxxxx
>> > > wrote:
>> > > Sebastien,
>> > >
>> > > For now, We have something like this (which follows the same
>> > > standard
>> > > as 'config diff' and 'config get' :
>> > >
>> > > #1:
>> > > ./ceph --admin-daemon out/osd.1.asok config diff get
>> > > mon_data_avail_crit
>> > > {
>> > >     "diff": {
>> > >         "current": {
>> > >             "mon_data_avail_crit": "1"
>> > >         },
>> > >         "defaults": {
>> > >             "mon_data_avail_crit": "5"
>> > >         }
>> > >     },
>> > >     "unknown": []
>> > > }
>> > >
>> > > ./ceph --admin-daemon out/osd.1.asok config diff get
>> > > mon_data_avail_warn
>> > > {
>> > >     "diff": {
>> > >         "current": {
>> > >             "mon_data_avail_warn": "10"
>> > >         },
>> > >         "defaults": {
>> > >             "mon_data_avail_warn": "30"
>> > >         }
>> > >     },
>> > >     "unknown": []
>> > > }
>> > >
>> > > What would be the proper way to display a setting that *was not*
>> > > changed from its default?, for example:
>> > > ./ceph --admin-daemon out/osd.1.asok config diff get num_client
>> > > {
>> > >     "diff": {
>> > >         "current": {},
>> > >         "defaults": {}
>> > >     },
>> > >     "unknown": []
>> > > }
>> > >
>> > > Or only the "current" value?
>> > >
>> > > Thanks,
>> > > -Daniel
>> > >
>> > >
>> > > On Mon, 2016-08-08 at 15:32 -0600, Daniel Oliveira wrote:
>> > > > Sebastien,
>> > > >
>> > > > As I was working on a couple of other things related to
>> > > > validating
>> > > > parameters/settings, I ended up adding the feature in question
>> > > > and I
>> > > > am just in the process of testing it. I will keep you posted.
>> > > >
>> > > > Thanks,
>> > > > -Daniel
>> > > >
>> > > >
>> > > > On Mon, 2016-08-08 at 14:16 +0200, Sebastien Han wrote:
>> > > > > Would be nice if you could get a stab at it, actually I don't
>> > > > > know
>> > > > > where to look in the code to see where the magic is happening
>> > > > > for
>> > > > > the
>> > > > > admin socket.
>> > > > > Most of the logic is there so this shouldn't be too difficult
>> > > > > :).
>> > > > >
>> > > > > Did you get a chance to look into this Jesse?
>> > > > > Thanks for offering your help on this one!
>> > > > >
>> > > > > On Fri, Jul 29, 2016 at 8:32 PM, Jesse Williamson <
>> > > > > jwilliamson@xxxxxxx> wrote:
>> > > > > > On Fri, 29 Jul 2016, Sebastien Han wrote:
>> > > > > >
>> > > > > > Hi Sebastien,
>> > > > > >
>> > > > > > > I'd like to have the same but for a specific option only.
>> > > > > > >
>> > > > > > > So something like:
>> > > > > > >
>> > > > > > > ceph daemon mon.ceph-mon-01 config diff get <field>
>> > > > > > >
>> > > > > > > Which will return the diff between the actual config
>> > > > > > > value and
>> > > > > > > the
>> > > > > > > original config value.
>> > > > > >
>> > > > > >
>> > > > > > I might be able to help with this, if there's no support
>> > > > > > that
>> > > > > > anyone already
>> > > > > > knows of, or clear takers. I'm working on a small config
>> > > > > > -related
>> > > > > > librados
>> > > > > > feature right now and am somewhat familiar with the
>> > > > > > relevant
>> > > > > > moving parts on
>> > > > > > that end, so I might be in a good position to work on it.
>> > > > > >
>> > > > > > WRT the admin socket, I'm less clear, but can be pointed in
>> > > > > > the
>> > > > > > right
>> > > > > > direction. :-)
>> > > > > >
>> > > > > > -Jesse
>> > > > >
>> > > > >
>> > > > >
>> >
>> >
>> >
>> > --
>> > Cheers
>> >
>> > ––––––
>> > Sébastien Han
>> > Principal Storage Architect
>> >
>> > "Always give 100%. Unless you're giving blood."
>> >
>> > Mail: seb@xxxxxxxxxx
>> > Address: 11 bis, rue Roquépine - 75008 Paris
>> > --
>> > To unsubscribe from this list: send the line "unsubscribe ceph
>> > -devel" in
>> > the body of a message to majordomo@xxxxxxxxxxxxxxx
>> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
>>
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