sid error on pid

["Theodorus" <theo tkd co id>]

I had a problem with some service on my linux system...
I'm using RHAS-3 with cluster manager

I got the error messages like this :


May 31 09:15:37 node2 pidof[28294]: can't read sid for pid 28303 
May 31 09:21:33 node2 pidof[4086]: can't read sid for pid 4080 
May 31 09:22:12 node2 pidof[4838]: can't read sid for pid 4843 
May 31 09:22:51 node2 pidof[5824]: can't read sid for pid 5834 
May 31 09:25:43 node2 pidof[9682]: can't read sid for pid 9697 
May 31 09:36:18 node2 clusvcmgrd[24107]: <warning> Restarting locally failed
service radbill 
May 31 09:36:18 node2 clusvcmgrd[24132]: <warning> Restarting locally failed
service ama_d 
May 31 09:36:19 node2 clusvcmgrd: [24289]: <notice> service notice: Stopping
service ama_d ... 
May 31 09:36:19 node2 clusvcmgrd: [24199]: <notice> service notice: Stopping
service radbill ... 
May 31 09:36:19 node2 clusvcmgrd: [24289]: <notice> service notice: Running
user script '/project/services/ama_start.sh stop' 
May 31 09:36:19 node2 clusvcmgrd: [24199]: <notice> service notice: Running
user script '/project/services/radbill_start.sh stop' 
May 31 09:36:19 node2 ama_start.sh: AmaMeterTelnet shutdown succeeded
May 31 09:36:19 node2 radbill_start.sh: RadbillTelnet shutdown succeeded
May 31 10:36:22 node2 pidof[15488]: can't read sid for pid 15496 
May 31 10:36:22 node2 pidof[15499]: can't read sid for pid 15502 
May 31 10:37:01 node2 pidof[16450]: can't read sid for pid 16458 
May 31 10:42:25 node2 pidof[23917]: can't read sid for pid 23913 
May 31 10:43:45 node2 pidof[25890]: can't read sid for pid 25896 
May 31 10:45:45 node2 sshd(pam_unix)[28479]: session opened for user root by
(uid=0)
May 31 10:46:29 node2 pidof[29534]: can't read sid for pid 29537 
May 31 10:48:58 node2 pidof[395]: can't read sid for pid 399


Those is just a piece from the message from linux log.
Can anyone tell me what is wrong or what is causing this problem...


Thnx in advance

theo