DQ2Client quick usage
Revision as of 12:38, 12 September 2008 by Hclee@nikhef.nl (talk | contribs) (→List dataset locations)
Introduction
This page aims to give a quick usage of DQ2Client commands for browsing, searching and retrieving the ATLAS datasets on the Grid.
Setup environment
% source /project/atlas/nikhef/dq2/dq2_setup.(c)sh.NIKHEF % voms-proxy-init -voms atlas
List datasets
The following command lists the merged FDRII AOD datasets of the Muon stream.
% dq2-ls fdr08_run2*Muon*merge*AOD* ... fdr08_run2.0052280.physics_Muon.merge.AOD.o3_r508_t45 fdr08_run2.0052301.physics_Muon.merge.AOD.o3_r508_t45/ fdr08_run2.0052283.physics_Muon.merge.AOD.o3_r508_t45 fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10 fdr08_run2.0052290.physics_Muon.merge.AOD.o3_f8_m10 fdr08_run2.0052293.physics_Muon.merge.AOD.o3_r508_t45_tid024345 fdr08_run2.0052283.physics_Muon.merge.AOD.o3_r508_t45/ fdr08_run2.0052300.physics_Muon.merge.AOD.o3_f26_m15 ...
The one with "/" at the end indicates a dataset container.
List dataset locations
The following command lists the replica locations of dataset fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10
% dq2-ls -r fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10 INCOMPLETE: RAL-LCG2_DATADISK COMPLETE: PRAGUELCG2_DATADISK GOEGRID_DATADISK TRIUMF-LCG2_DATADISK ... NIKHEF-ELPROD_DATADISK ...
List of all possible locations
The following command lists all possible locations with files
dq2-destinations
For example, you will see several Nikhef disks in this list.
List dataset files
The following command lists the files in a particular dataset
% dq2-ls -l fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10 fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10 [X] fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0004.1 9C32CDB7-7638-DD11-8B46-0030487C782A ad:6906bd22 3044690419 [X] fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0007.1 8AEBE6D3-7638-DD11-A9B9-0030487CD836 ad:72aacdf0 3013049170 [X] fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0002.1 96E34CB5-7638-DD11-B584-0019DB29C602 ad:be45ed57 2990039386 [ ] fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0003.1 5C4857B2-7638-DD11-87BB-0030487CD762 ad:19ebf510 2991127754 [X] fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0009.1 5E0F0BCC-7638-DD11-B69A-0030487CD938 ad:e96929bb 2008226831 [ ] fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0005.1 526C74BC-7638-DD11-9959-0030487CD16C ad:72859987 2994945608 ...
| column # | example | meaning |
|---|---|---|
| 1 | [X] or [ ] | existence of the file in local site. Cross means it exists. |
| 2 | fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0004.1 | logical file name |
| 3 | 9C32CDB7-7638-DD11-8B46-0030487C782A | Global Unique Identifier (GUID) |
| 4 | ad:6906bd22 | checksum |
| 5 | 3044690419 | file size in byte |
List dataset files in PFNs
The following command lists the physical SURLs of the files of a particular dataset.
% dq2-ls -p -f fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10 fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10 srm://tbn18.nikhef.nl/dpm/nikhef.nl/home/atlas/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0006.1 srm://tbn18.nikhef.nl/dpm/nikhef.nl/home/atlas/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0008.1 srm://tbn18.nikhef.nl/dpm/nikhef.nl/home/atlas/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0001.1 srm://tbn18.nikhef.nl/dpm/nikhef.nl/home/atlas/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0005.1 srm://tbn18.nikhef.nl/dpm/nikhef.nl/home/atlas/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0009.1 ...
It returns a list of physical files located at your local site defined by $DQ2_LOCAL_SITE_ID environment variable.
You can however list the physical files located at another site by using the -L option:
% dq2-ls -L CERN-PROD_DATADISK -p -f fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10 fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10 srm://srm-atlas.cern.ch/castor/cern.ch/grid/atlas/tzero/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0006.1 srm://srm-atlas.cern.ch/castor/cern.ch/grid/atlas/tzero/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0008.1 srm://srm-atlas.cern.ch/castor/cern.ch/grid/atlas/tzero/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0001.1 srm://srm-atlas.cern.ch/castor/cern.ch/grid/atlas/tzero/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0005.1 srm://srm-atlas.cern.ch/castor/cern.ch/grid/atlas/tzero/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0009.1 srm://srm-atlas.cern.ch/castor/cern.ch/grid/atlas/tzero/atlasdatadisk/fdr08_run2/AOD/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10/fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10._0003.1 ...
Get dataset
The following command downloads a dataset from your local site to your current working directory.
% dq2-get fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10
The following command downloads a dataset from a specific remote site to your current working directory.
% dq2-get -s CERN-PROD_DATADISK fdr08_run2.0052293.physics_Muon.merge.AOD.o3_f8_m10