Periodic High Load

[tincboy]

Hello,
I've 3 Proxmox server that are clustered to gather,
I'm storing the load of these servers in external DB and it shows me about 10min high load in all of servers every day about 23:00 PM,
Does Proxmox schedule a job at that time that cause this heavy high load?

 

[tom]

did you configure a scheduled backup job?

 

[tincboy]

did you configure a scheduled backup job?

No, I didn't

 

[tom]

something inside a VM?

 

[tincboy]

in the syslog I can see it's because of image syncchronization
Aug 15 00:34:04 pvemirror2859 starting cluster syncronization
Aug 15 00:34:05 pvemirror2859 syncing templates
Aug 15 00:34:05 pvemirror2859 cluster syncronization finished (0.50 seconds (files 0.00, config 0.00))

The images didn't change for a long time but I have this high load every day

 

[dietmar]

Aug 15 00:34:05 pvemirror2859 cluster syncronization finished (0.50 seconds (files 0.00, config 0.00))

I doubt that 0.5 seconds can produce a high load - why do you think so?

 

[tincboy]

I'm really sure that the sync is the cause of this high load,
but it's in the exact time of high load in every day

 

[dietmar]

but it's in the exact time of high load in every day

But pvemirror runs every few minutes - so what time do you talk about?

 

[tincboy]

I guess that these command is causing the high load:
Aug 23 11:00:01 cloud2 /USR/SBIN/CRON[14942]: (root) CMD (test -x /usr/lib/atsar/atsa1 && /usr/lib/atsar/atsa1)
What does these command do?

 

[tincboy]

I guess that these command is causing the high load:
Aug 23 11:00:01 cloud2 /USR/SBIN/CRON[14942]: (root) CMD (test -x /usr/lib/atsar/atsa1 && /usr/lib/atsar/atsa1)
What does these command do?

An other guess is:
As my VMs are all Centos 5.4, Does Centos do an specific job that cause this kind of high load?