Nice one, thanks much!
Judit
On k, nov 22, Mathias de Riese wrote:
>
> Thanks Jeff,
>
> I put it into the wiki:
>
> http://goc.grid.sinica.edu.tw/gocwiki/Confusion_between_top-level-BDII_and_site-BDII
>
> Any wikiphile cares to improve the formatting?
>
> Cheers,
> Mathias
>
> Jeff Templon wrote:
> >Hi,
> >
> >this explanation is a great candidate for the wiki and also to
> >contribute to the docs distributed with the BDII software. Thanks a lot
> >for this, it helps. Can you add it to the GOC wiki pages??
> >
> > JT
> >
> >Mathias de Riese wrote:
> >
> >>
> >>Hi Maarten and Eygene and all,
> >>
> >>your confusion, Eygene, arises because there are in fact two uses
> >>of the word 'BDII' at the moment: The software 'lcg-bdii' and the
> >>functionality 'bdii'. It gets really bad, because there are two
> >>functionality which are called 'bdii': The 'site-bdii' and the
> >>'top-level-bdii'. The information flow is as follows:
> >>
> >>
> >>-------- ------------- ------------------
> >>| gris | --> | site-bdii | --> | top-level-bdii |
> >>-------- ------------- ------------------
> >>One for One for each One (or more) central
> >>each re- site. Collec- ones. Usually one for
> >>source: ting the info each RB. Collects all
> >>on each about the re- the info about all
> >>CE,SE,RB, sources of the sites (e.g. lcg-bdii.cern.ch)
> >>myProxy,.. site.
> >>
> >>many fewer one (or few)
> >>
> >>The 'site-bdii' used to be called the 'giis'. Since
> >>the Globus MDS software was originally used for the 'giis'
> >>functionality and was replaced by the 'BDII' software, it is
> >>called 'bdii' by many people -- and also by the site-info.def
> >>variables:
> >>
> >><part of site-info.def>
> >>BDII_HTTP_URL="http://grid-deployment.web.cern.ch/grid-deployment/gis/lcg2-bdii/dteam/lcg2-all-sites.conf"
> >>
> >>BDII_REGIONS="CE SE RB PX VOBOX" # list of the services
> >>provided by the site
> >>BDII_CE_URL="ldap://$CE_HOST:2135/mds-vo-name=local,o=grid"
> >>BDII_SE_URL="ldap://$SE_HOST:2135/mds-vo-name=local,o=grid"
> >>BDII_RB_URL="ldap://$RB_HOST:2135/mds-vo-name=local,o=grid"
> >>BDII_PX_URL="ldap://$PX_HOST:2135/mds-vo-name=local,o=grid"
> >>BDII_VOBOX_URL="ldap://$VOBOX_HOST:2135/mds-vo-name=local,o=grid"
> >></part of site-info.def>
> >>
> >>while the first line is used to configure a 'top-level-bdii'
> >>(the one installed on the host specified by BDII_HOST) the other
> >>lines are used to configure the 'site-bdii' (usually on the CE_HOST)
> >>and should describe the resources provided by the site.
> >>
> >>Note that most sites don't need a top-level-bdii.
> >>
> >>Maybe this could be changed in future versions of site-info.def to
> >>finally resolve the confusion BDII/BDII/GIIS. I would suggest
> >>
> >><part of site-info.def>
> >>BDII_HTTP_URL="http://grid-deployment.web.cern.ch/grid-deployment/gis/lcg2-bdii/dteam/lcg2-all-sites.conf"
> >>
> >>GIIS_REGIONS="CE SE RB PX VOBOX" # list of the services
> >>provided by the site
> >>GIIS_CE_URL="ldap://$CE_HOST:2135/mds-vo-name=local,o=grid"
> >>GIIS_SE_URL="ldap://$SE_HOST:2135/mds-vo-name=local,o=grid"
> >>GIIS_RB_URL="ldap://$RB_HOST:2135/mds-vo-name=local,o=grid"
> >>GIIS_PX_URL="ldap://$PX_HOST:2135/mds-vo-name=local,o=grid"
> >>GIIS_VOBOX_URL="ldap://$VOBOX_HOST:2135/mds-vo-name=local,o=grid"
> >></part of site-info.def>
> >>
> >>Cheers,
> >>Mathias
> >>
> >>
> >>Maarten Litmaath wrote:
> >>
> >>>Eygene A. Ryabinkin wrote:
> >>>
> >>>> Maarten, good day!
> >>>>
> >>>>>>I have a small question about the site BDII information: should we
> >>>>>>publish
> >>>>>>there only services that we are running by our site or we should
> >>>>>>publish the
> >>>>>>services we are using by our site.
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>Only the services you are _running_.
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> OK, will change it back as it was before today. The reason I've added
> >>>>foreign RB to our BDII is that our ALICE coordinator asked me today
> >>>>what
> >>>>RB we are using and how can it be extracted from the information
> >>>>system.
> >>>
> >>>
> >>>
> >>>
> >>>You have a point there, but we do not want every site to publish
> >>>somebody
> >>>else's services! The RB used by a site is put in its UI configuration,
> >>>so I do not think it really has to be in the information system.
> >>>
> >>>>I've glanced at others BDIIs and noted that they are publishing foreign
> >>>>services. So I've took the (wrong) opinion of masses.
> >>>
> >>>
> >>>
> >>>
> >>>That was due to the wrong default in site-info.def.
> >>>
> >>>> So, the next quesion: is there any way to extract the information
> >>>>about
> >>>>services _used_ by site from the information system?
> >>>>
> >>>>
> >>>>>The comment in site-info.def is better:
> >>>>>
> >>>>>BDII_REGIONS="CE SE RB PX VOBOX" # list of the services
> >>>>>provided by the site
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> Yep, probably I should open an item in Savannah?
> >>>
> >>>
> >>>
> >>>
> >>>For any middleware functionality or configuration issue one can
> >>>always open
> >>>a bug in Savannah.
> >>
> >>
> >>
>
> --
>
> Dr. Mathias de Riese
> - IT -
> Deutsches Elektronen-Synchrotron DESY
> Notkestrasse 85
> D-22607 Hamburg
>
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