Who is that masked user?

Trying to get a better handle on usage of our cluster, I for the first time realised that Maui actually provides quite a nice way of displaying the efficiency of jobs. It doesn't sort them the way you'd like, but then that's what "sort" is for. Here's the "bottom 10" jobs on our system:

[root@gridgate gridmapdir]# showq -r|sort -n  -k 4|sed -e 's/^[ \t]*//' -e '/^$/d'|head -n 10
JobName  S Par  Effic  XFactor  Q      User    Group    MHost Procs   Remaining            StartTime
447 Jobs     447 of   683 Processors Active (65.45%)
550825_ R DEF   7.53      0.1 DE    fus098   fusion    wn019     1     7:45:00  Fri Mar 28 11:16:42
550438_ R DEF   9.31      0.1 DE    fus098   fusion    wn056     1     1:33:37  Fri Mar 28 05:05:04
550818_ R DEF   9.51      0.0 DE    fus098   fusion    wn072     1     5:19:15  Fri Mar 28 08:50:40
550439_ R DEF   9.65      0.1 DE    fus098   fusion    wn056     1     1:33:37  Fri Mar 28 05:05:04
550429_ R DEF  10.08      0.0 DE    fus098   fusion    wn062     1    00:39:47  Fri Mar 28 04:11:18
550437_ R DEF  10.19      0.1 DE    fus098   fusion    wn056     1     1:33:26  Fri Mar 28 05:05:04
550417  R DEF  10.28      0.1 DE    fus098   fusion    wn011     1    00:27:03  Fri Mar 28 03:58:28
550441_ R DEF  10.30      0.1 DE    fus098   fusion    wn056     1     1:33:40  Fri Mar 28 05:05:04

Looks like I need to find out who this fus098 guy is. Normally my method for doing this is to grep through /var/log/globus-gatekeeper.log but I finally got sick of this and wrote a little python script to translate the funny system used in /etc/grid-security/gridmapdir (documented here) and output the complete set of pool account mappings. I was going to implement all sorts of fancy options for outputting a particular user's mapping etc. but decided I could do what I needed with grep so I'll leave the fancification to someone else. The script is available here and here's some sample usage:

What are the mappings for users with "childs" in their DN?

[childss@gridgate childss]$ ./poolmapping |grep -i childs
dte053:/c=ie/o=grid-ireland/ou=cs.tcd.ie/l=ra-tcd/cn=stephen o. childs:dteam
solovo003:/c=ie/o=grid-ireland/ou=cs.tcd.ie/l=ra-tcd/cn=stephen o. childs:solovo
webcom050:/c=ie/o=grid-ireland/ou=cs.tcd.ie/l=ra-tcd/cn=stephen o. childs:webcom
cosmo007:/c=ie/o=grid-ireland/ou=cs.tcd.ie/l=ra-tcd/cn=stephen o. childs
cosmo004:/c=ie/o=grid-ireland/ou=cs.tcd.ie/l=ra-tcd/cn=stephen o. childs:cosmo
gitest042:/c=ie/o=grid-ireland/ou=cs.tcd.ie/l=ra-tcd/cn=stephen o. childs:gitest

What DN is mapped to dte053?

[childss@gridgate childss]$ ./poolmapping |grep -i dte053
dte053:/c=ie/o=grid-ireland/ou=cs.tcd.ie/l=ra-tcd/cn=stephen o. childs:dteam