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XROOTD-L  October 2005

XROOTD-L October 2005

Subject:

Re: xrdcp with MonALISA monitoring

From:

Catalin Cirstoiu <[log in to unmask]>

Date:

06 Oct 2005 19:27:23 +0200Thu, 06 Oct 2005 19:27:23 +0200

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text/plain (122 lines)

Hi Peter,

Since I've already done a few things towards getting xrootd server
monitoring data into MonALISA, I'm looking forward towards this.

Unfortunately I will be unavailable the whole next week (I have an exam
at my university), but I would suggest to have this meeting next
Tuesday, for example, if it's possible for you too.

Cheers,
Catalin.

Peter Elmer wrote:
> Hi Derek and Catalin,
>
> On Thu, Oct 06, 2005 at 02:38:36PM +0200, Derek Feichtinger wrote:
>
>>You are right. Let's do it like this: We leave this completely out for now.
>>I will generate a patch to xrdcp which will be used in the Alice builds.
>>
>>After talking to Catalin I can see now that the code is not in a state that it
>>should be added to the common CVS anyhow (I had suspected a bit, an that's
>>why I did not ask for inclusion of the #ifdefs in the present xrdcp). Catalin
>>will get in contact with you again whether it is possible to get all the
>>information he collects via the client extension also via the server based
>>monitoring (added Catalin in CC).
>>If it turns out that there is interest in this functionality, we can still
>>make it a configure option.
>
>
> I think having the possibility of sending xrootd information to MonALISA
> is something we want.
>
> I also agree that we should have a "what we want from this" discussion
> independent of the implementations, hopefully with Jacek/Tofigh
> participating, too, since they worked on the server side monitoring. Perhaps
> we could try to have a short dedicated phone conversation next week? Would
> you and Catalin be able to call into the normal xrootd meeting? (19:15
> CERN time on Tuesday)
>
> Pete
>
>
>>On Thursday 06 October 2005 13.45, Peter Elmer wrote:
>>
>>> Hi Fabrizio and Derek,
>>>
>>> I'm also not fond of the idea of a separate executable as in any case
>>>then we are at the mercy of people using the correct one from any given
>>>installation of xrootd. It would be somewhat cleaner if people always
>>>just used 'xrd', whereever they are, and _if_ the command was linked
>>>with MonaLisa monitoring support it uses it. I guess there is then the
>>>question of how it knows whether and where to send the information (if the
>>>support is linked). How would that have worked with the 'xrdmoncp' command?
>>>
>>> BTW, I'm still not sure what the _client_ side support for MonALISA
>>>gives us that that the server side support would not (e.g. by reusing
>>>the existing monitoring and simply allowing it to be redirected to
>>>MonaLISA). Could you spell this out for me, Derek?
>>>
>>> Pete
>>>
>>>On Thu, Oct 06, 2005 at 01:35:38PM +0200, Fabrizio Furano wrote:
>>>
>>>>Hi Derek,
>>>>
>>>> generally I don't like "special" executable targets. However, I have no
>>>>objections if the idea is to move to a unique way when those libraries
>>>>are available.
>>>>
>>>> When I am out from the boring stuff I am on (very soon I hope) I will
>>>>start with the developing of some new features. Obviously I'll not
>>>>replicate modifications onto different code branches...
>>>>
>>>>Fabrizio
>>>>
>>>>On Wed, 2005-10-05 at 16:29 +0200, Derek Feichtinger wrote:
>>>>
>>>>>Ciao, Fabrizio
>>>>>
>>>>>We are using here a xrdcp with some added code for MonALISA monitoring
>>>>>of the clients. It's just the normal client with quite some stuff in
>>>>>between #ifdefs and it links against a MonALISA client library
>>>>>(libapmoncpp). The library is unluckily snot yet available on the main
>>>>>site (no official download page for that version yet. Catalin said he
>>>>>will include all the necessary changes in the official MonALISA soon).
>>>>>
>>>>>For these reasons I would like to include it for now as a separate
>>>>>second client called xrdmoncp in the XrdClients directory, that will
>>>>>only be built when autotools detect the presence of the libapmoncpp
>>>>>library. This way it's easy for users to detect whether a copy command
>>>>>with MonALISA monitoring is available.
>>>>>
>>>>>Is this ok for you?
>>>>>
>>>>>Any others interested in this monitoring possibility?
>>>>>
>>>>>Cheers,
>>>>>Derek
>>>
>>>-------------------------------------------------------------------------
>>>Peter Elmer E-mail: [log in to unmask] Phone: +41 (22) 767-4644
>>>Address: CERN Division PPE, Bat. 32 2C-14, CH-1211 Geneva 23, Switzerland
>>>-------------------------------------------------------------------------
>>
>>--
>>Dr. Derek Feichtinger Tel: +41 22 767 10 07
>>ARDA project email: [log in to unmask]
>>CERN http://people.web.psi.ch/feichtinger
>>CH-1211 Genève 23
>>
>
>
>
>
> -------------------------------------------------------------------------
> Peter Elmer E-mail: [log in to unmask] Phone: +41 (22) 767-4644
> Address: CERN Division PPE, Bat. 32 2C-14, CH-1211 Geneva 23, Switzerland
> -------------------------------------------------------------------------


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