Hands-on on Information System

Antonio Fuentes Bermejoantonio.fuentes@rediris.es

Oviedo, 20 de Noviembre de 2006

2

Querying the Information System

• In order to query directly the IS elements two high level tools are provided:

• These tools should be enough for most common user needs and can be used to hide the complexity of raw LDAP queries.

lcg-infosites

lcg-info

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lcg-infosites

This tool provides information related to Grid services:

lcg-infosites --vo <your_vo> option –-is <your_bdii>

• It’s mandatory to include the vo and the option• The --is option specifies the BDII you want to query If not supplied, the BDII defined into the environment variable LCG_GFAL_INFOSYS will be used

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lcg-infosites - options

ce Number of CPUs, running and waiting jobs and names of the CEs

se SEs names together with the available and used space

closeSE Names of the CEs where the user’s VO is allowed to run together with their corresponding closest SEs

lfc Name of the lfc Catalog for the user’s VO

tag Name of the tags relative to the software installed in site with the corresponding CE

is Name of the BDII which the user wants query

help Prints all the available options and exit

all It groups all the features just described

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Initial Step

• Please set the environment variable:

• export LCG_GFAL_INFOSYS=grid004.ct.infn.it:2170

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Exercise 1

Obtaining information about CE

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lcg-infosites - 1

valor del bdii: mnto04.uniandes.edu.co:2170

***********************************************************************************************

#CPU Free Total Jobs Running Waiting ComputingElement

-----------------------------------------------------------------------------------------------

6 6 0 0 0 grid004.iucc.ac.il:2119/jobmanager-lcgpbs-long

0 0 0 0 0 cn01.be.itu.edu.tr:2119/jobmanager-lcglsf-long

10 10 0 0 0 dgt01.ui.savba.sk:2119/jobmanager-lcgpbs-long

6 6 0 0 0 grid004.iucc.ac.il:2119/jobmanager-lcgpbs-short

0 0 0 0 0 cn01.be.itu.edu.tr:2119/jobmanager-lcglsf-short

10 10 0 0 0 dgt01.ui.savba.sk:2119/jobmanager-lcgpbs-short

16 16 0 0 0 grid010.ct.infn.it:2119/jobmanager-lcgpbs-long

....

lcg-infosites --vo gilda ce

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Exercise 2

Obtaining information about SE

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lcg-infosites - 2

lcg-infosites --vo gilda se

Avail Space(Kb) Used Space(Kb) Type SEs----------------------------------------------------------898705748 13701668 n.a grid005.iucc.ac.il63830000 10240000 n.a egee016.cnaf.infn.it51890000 3920000 n.a grid038.ct.infn.it2910000000 940000000 n.a aliserv6.ct.infn.it64390000 8350000 n.a gilda02.lcca.usp.br28062620 3097160 n.a testbed005.cnaf.infn.it767750000 41110000 n.a gildase01.roma3.infn.it50410000 2730000 n.a trigrid-ce01.unime.it51890000 3920000 n.a grid038.ct.infn.it

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Exercise 3

Listing the closeSE

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lcg-infosites --vo gilda closeSE

lcg-infosites - 3

valor del bdii: mnto04.uniandes.edu.co:2170Name of the CE: grid010.ct.infn.it:2119/jobmanager-lcgpbs-long aliserv6.ct.infn.it grid038.ct.infn.it

Name of the CE: grid011f.cnaf.infn.it:2119/jobmanager-lcgpbs-long testbed005.cnaf.infn.it egee016.cnaf.infn.it

Name of the CE: gilda03.lcca.usp.br:2119/jobmanager-lcgpbs-long gilda02.lcca.usp.br gilda02.lcca.usp.br

Name of the CE: grid010.ct.infn.it:2119/jobmanager-lcgpbs-short aliserv6.ct.infn.it grid038.ct.infn.it

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Exercise 4

Obtaining information about software

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lcg-infosites - 4

**************************************************************Information for gilda relative to their software tags included in each CE**************************************************************

Name of the TAG: VO-gilda-GEANTName of the TAG: VO-gilda-GKS05Name of the CE:cn01.be.itu.edu.tr

Name of the TAG: VO-gilda-slc3_ia32_gcc323Name of the TAG: VO-gilda-CMKIN_5_1_1Name of the TAG: VO-gilda-GEANTName of the TAG: VO-gilda-GKS05Name of the CE:grid010.ct.infn.it

....

lcg-infosites --vo gilda tag

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lcg-info

• This tool allows the users to query, in a deeper way, the BDII

• It requires the environment variable LCG_GFAL_INFOSYS to be set to the value of the BDII to be queried e.g. grid004.ct.infn.it:2170

• Prints the list of the CEs or SEs satisfying a given query along with a list of specified attributes.

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lcg-info

• The query syntax is like this:

attr1 op1 valueN, ... attrN opN valueN where attrN is an attribute name op is =, >= or <=, and the cuts are ANDed A combination of attribute is supported The cuts are comma-separated and spaces

are not allowed

SINCE THE LATEST GLUE-SCHEMA UPDATE ONLY “=“ OPERATOR IS SUPPORTED!

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lcg-info options

--list-attrs Prints a list of attributes that can be queried.

--list-ce Lists the CEs which satisfy a query, or all the CEs if no query is given.

--list-se Lists the SEs which satisfy a query, or all the SEs if no query is given.

--query Restricts the output to the CEs (SEs) which satisfy the given query.

--bdii Allows to specify a BDII in the form <hostname>:<port>. If not given, the value of the environmental variable LCG_GFAL_INFOSYS is used. If that is not defined, the command returns an error.

--sed Print the output in a "sed-friendly" format.

--attrs Specifies the attributes whose values should be printed.

--vo Restricts the output to CEs or SEs where the given VO is authorized. Mandatory when VO-dependent attributes are queried upon.

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Exercise 1

List all the attributes

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lcg-info - 1

lcg-info --list-attrs

Attribute name Glue object class Glue attribute name

MaxTime GlueCE GlueCEPolicyMaxWallClockTime

CEStatus GlueCE GlueCEStateStatus

TotalJobs GlueCE GlueCEStateTotalJobs

CEVOs GlueCE GlueCEAccessControlBaseRule

TotalCPUs GlueCE GlueCEInfoTotalCPUs

FreeCPUs GlueCE GlueCEStateFreeCPUs

CE GlueCE GlueCEUniqueID

WaitingJobs GlueCE GlueCEStateWaitingJobs

RunningJobs GlueCE GlueCEStateRunningJobs

CloseCE GlueCESEBindGroup GlueCESEBindGroupCEUniqueID

CloseSE GlueCESEBindGroup GlueCESEBindGroupSEUniqueID

SEVOs GlueSA GlueSAAccessControlBaseRule

UsedSpace GlueSA GlueSAStateUsedSpace

AvailableSpace GlueSA GlueSAStateAvailableSpace

Type GlueSE GlueSEType

SE GlueSE GlueSEUniqueID

Protocol GlueSEAccessProtocol GlueSEAccessProtocolType ....

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Exercise 2

Listing tags of installed software

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lcg-info - 2

lcg-info --list-ce --attrs Tag- CE: gilda03.lcca.usp.br:2119/jobmanager-lcgpbs-infinite - Tag LCG-2 LCG-2_1_0 LCG-2_1_1 LCG-2_2_0 LCG-2_3_0 LCG-2_3_1 LCG-2_4_0 LCG-2_6_0 GLITE-3_0_0 AFS CMS-1.1.0 ATLAS-6.0.4 GATE-1.0.0-3 LHCb-1.1.1 IDL-5.4 CMSIM-125 ALICE-4.01.00 ALIEN-1.32.14

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Exercise 3

Listing all the CEs with their FreeCPUsand TotalJobs attributes

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lcg-info - 3

lcg-info --list-ce --attrs FreeCPUs,TotalJobs

- CE: gilda03.lcca.usp.br:2119/jobmanager-lcgpbs-infinite - FreeCPUs 4 - TotalJobs 0

- CE: gilda03.lcca.usp.br:2119/jobmanager-lcgpbs-long - FreeCPUs 4 - TotalJobs 0

- CE: gilda03.lcca.usp.br:2119/jobmanager-lcgpbs-short - FreeCPUs 4 - TotalJobs 0

- CE: gildace01.roma3.infn.it:2119/jobmanager-lcgpbs-infinite - FreeCPUs 4 - TotalJobs 0

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Exercise 4

List FreeCPUs and TotalJobs attributes of all the CEs that have TotalCPUs=10

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lcg-info --list-ce --attrs FreeCPUs,TotalJobs --query TotalCPUs=10

lcg-info - 4

- CE: grid004.iucc.ac.il:2119/jobmanager-lcgpbs-infinite - FreeCPUs 10 - TotalJobs 0

- CE: grid004.iucc.ac.il:2119/jobmanager-lcgpbs-long - FreeCPUs 10 - TotalJobs 0

- CE: grid004.iucc.ac.il:2119/jobmanager-lcgpbs-short - FreeCPUs 10 - TotalJobs 0

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Questions …