Basic Grid Computing Commands#

This document assumes you already have a correctly installed grid certificate.#

Using your certificate#

To create a CMS grid proxy:#

  1. Log into lxplus or one of the HEP login servers: ssh login.hep.wisc.edu#

  2. Run voms-proxy-init:#

    voms-proxy-init -rfc -valid 144:00 -voms cms

Enter GRID pass phrase:
Your identity: /DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=cvuosalo/CN=708697/CN=Carl Vuosalo
Creating temporary proxy ......................... Done
Contacting  voms2.cern.ch:15002 [/DC=ch/DC=cern/OU=computers/CN=voms2.cern.ch] "cms" Done
Creating proxy ........................................................................ Done

Your proxy is valid until Tue Dec 22 15:35:13 2020

  3. To check your proxy:#

    voms-proxy-info -all

subject   : /DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=cvuosalo/CN=708697/CN=Carl Vuosalo/CN=236062654
issuer    : /DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=cvuosalo/CN=708697/CN=Carl Vuosalo
identity  : /DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=cvuosalo/CN=708697/CN=Carl Vuosalo
type      : RFC compliant proxy
strength  : 1024 bits
path      : /tmp/x509up_u4072
timeleft  : 143:58:42
key usage : Digital Signature, Key Encipherment
=== VO cms extension information ===
VO        : cms
subject   : /DC=ch/DC=cern/OU=Organic Units/OU=Users/CN=cvuosalo/CN=708697/CN=Carl Vuosalo
issuer    : /DC=ch/DC=cern/OU=computers/CN=voms2.cern.ch
attribute : /cms/Role=NULL/Capability=NULL
attribute : /cms/uscms/Role=NULL/Capability=NULL
timeleft  : 143:58:41
uri       : voms2.cern.ch:15002

    Note that your grid proxy is valid for the time given by the “-valid” parameter. In this example, the period is 144 hours (6 days). If your jobs have to continue running past the expiration time, you will need to renew your proxy before the time runs out.#

For more details, including how to manage files in HDFS, see our FAQ.#