[Mauiusers] Maui not honouring standing reservations

Drew Leske dleske at uvic.ca
Tue Jul 5 17:10:12 MDT 2005


Hi all,

I've been having problems with standing reservations.  Under certain 
conditions--it appears to happen only when Maui is restarted, and so 
only if jobs are queued at the time--Maui does not honour the standing 
reservations I have configured.

I am using Maui 3.2.6p11 with Torque 1.2.0p3.  (On an older cluster I am 
and have been using standing reservations with Maui 3.2.5p2 with OpenPBS 
without any troubles.)

The following snippet is relevant:

----

SRCFG[express]         CLASSLIST=express,test
SRCFG[express]         HOSTLIST=c06b05,c06b06,c06b07,c06b08,c06b09
SRCFG[express]         PERIOD=INFINITY

SRCFG[mars]            CLASSLIST=mars
SRCFG[mars] 
HOSTLIST=c08b01,c08b02,c08b03,c08b04,c08b05,c08b06,c08b0
7,c08b08,c08b09,c08b10,c08b11,c08b12,c08b13,c08b14,c09b01,c09b02,c09b03,c09b04,
c09b05,c09b06,c09b07,c09b08,c09b09,c09b10,c09b11,c09b12,c09b13,c09b14
SRCFG[mars]            PERIOD=INFINITY

----

Since implementing this I have been finding non-mars jobs on hosts in 
this list.  (This is a problem because these nodes are "politically" 
distinct, and we have an agreement with the owners that only their jobs 
will run here.)  The problem seems to happen when Maui is restarted.  If 
I have Maui report the reservations via "mdiag -r" it seems to recognise 
the reservations.

I have looked into using partitions as well, but the documentation seems 
to suggest that this is not the way to go.

Thoughts?  This has been driving me nuts for a while.

Cheers,
Drew.

-- 
Drew Leske, Senior Systems Administrator
  Systems Group, Computing and Systems Services, University of Victoria
  dleske at uvic.ca; +1250 472 5055 (office); +1250 812 4769 (cel)


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