[GE users] dtrace difference between SGE 6.1 and SGE 6.2 (all versions)

adary adary at marvell.com
Thu Jul 23 13:58:21 BST 2009


Hi Everyone,

While our cluster was running SGE 6.1 I had a nice script based on dtrace script that comes with SGE that would run dtrace for 180 seconds, redirect the output to a file, and grep out all the data relevant to sge_c_gdi_get and get the hostnames where gdi requests come from, and nicely sort it out

Dtrace output looked like this:

  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 9
  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 10
  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 10
  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 10
  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 10
  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 10
  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 10
  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 10
  1  47886              sge_c_gdi_get:entry     sge_c_gdi_get(gravity22) tid 10

Ever since we moved to 6.2 the hostname entry is missing from the dtrace output.
Is this a bug, or a feature, or me doing something wrong?

The only difference in setup between 6.1 and 6.2 is that with 6.2 we installed qmaster in a zone (with dtrace privileges ofc.) and our 6.1 master was not running in a zone.

Nowdays the output of dtrace looks like this:

21  54256              sge_c_gdi_get:entry     sge_c_gdi_get() tid 10
 21  54256              sge_c_gdi_get:entry     sge_c_gdi_get() tid 10
 21  54256              sge_c_gdi_get:entry     sge_c_gdi_get() tid 10
 21  54256              sge_c_gdi_get:entry     sge_c_gdi_get() tid 10
 21  54256              sge_c_gdi_get:entry     sge_c_gdi_get() tid 10
 21  54256              sge_c_gdi_get:entry     sge_c_gdi_get() tid 10
 21  54256              sge_c_gdi_get:entry     sge_c_gdi_get() tid 10
  0  54259              sge_c_gdi_add:entry     sge_c_gdi_add() tid 9
 21  54259              sge_c_gdi_add:entry     sge_c_gdi_add() tid 10
 21  54259              sge_c_gdi_add:entry     sge_c_gdi_add() tid 10


Any help with this with be much appreciated.

Cheers,

Y.



________________________________
Yuval Adar, Marvell Israel - Senior UNIX System Administrator
6 Hamada Street
Mordot HaCarmel Industrial Park
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