[Mauiusers] Node idle but load is HIGH

Jan Ploski Jan.Ploski at offis.de
Fri Sep 28 01:31:01 MDT 2007


Hello,

diagnose -n on my system gives the following message for quite a few 
nodes:

WARNING:  node 'node38' has been idle for 8:25:00 but load is HIGH.  load: 
 3.020 (check for runaway processes?)

However, the node is running three jobs:

node38                   Idle   4:4     7988:7988        1:1 15314:15314 
1.00  linux [NONE] DEF   3.00 003 [dgiseq_4:4][verylong_4:4][sma [DEFAULT] 
                     [dual][eth] 
node38
     state = free
     np = 4
     properties = eth,dual
     ntype = cluster
     jobs = 0/346565.srvgrid01.offis.uni-oldenburg.de, 
1/346438.srvgrid01.offis.uni-oldenburg.de, 
2/346540.srvgrid01.offis.uni-oldenburg.de
     status = opsys=linux,uname=Linux node38 2.6.16.27-0.9-smp #1 SMP Tue 
Feb 13 09:35:18 UTC 2007 x86_64,sessions=23026 23588 
26819,nsessions=3,nusers=1,idletime=163,totmem=16003996kb,availmem=15682840kb,physmem=8180384kb,ncpus=4,loadave=3.00,netload=75435158326,state=free,jobs=346438.srvgrid01.offis.uni-oldenburg.de 
346540.srvgrid01.offis.uni-oldenburg.de 
346565.srvgrid01.offis.uni-oldenburg.de,rectime=1190964204

...and according to pstree these jobs are child processes of pbs_mom, so 
definitely not "runaway".


How can it happen that the class initiators on a node are 4:4 even though 
this node is running some jobs?

Best regards,
Jan Ploski


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