It worked for 1 domU, but when doing this with another domU, it resulted
in a not responding system because of the load.
Memory is not the problem (dom0 has 746 MB).
This night I made a perfect backup by putting rsyncd.daemon on the
domU's, and rsyncing over ethernet to dom0.
There is nothing in the logs (messages,syslog,xend), not a single line.
The problem is within the snapshot I think, it gives me a instant load,
but not all the times (about 50% is done without a load-peak)
This is done within 2-seconds:
@xen1:~# cat /proc/loadavg
0.02 0.02 0.00 1/72 8252
@xen1:~# /sbin/lvcreate -L12G -s -n arrowsnapshot /dev/xen-vol/arrow-disk
Logical volume "arrowsnapshot" created
@xen1:~# cat /proc/loadavg
0.33 0.08 0.03 1/71 8306
Althoug the .33 isn't a problem, the load when crashed was more than 4
(maximum of mrtg-measurement)
Marc Patino Gómez schreef:
Hi,
I used these steps to backup my domUs and never I had this problem.
Pascal Nobus wrote:
.... seem to be a never ending story ...
I've found the problem of my crashes (two days on a row now).
I'm using lvm2 as a filesystem, and was doing backup's like this:
- take a snapshot of a running system
- mount the snapshot
- rsync the snapshot to my backup-partition.
- umount the snapshot
- remove the snaphost
Have your dom0 enough memory? Snapshots requires some aditional memory,
so if you had your dom0 limited to 256MB of RAM it could be a problem.
To prevent a not responding system you can use "renice" command to
schedule rsync command with low priority.
If you can post more info, like log output of the crash , probably
someone in the list could help you.
Regards,
Marc
This resulted in a huge load, which was increased 1 hour later, and
resulted in a not-responding system.
I googled now for 2 days, and found many discussions, but I cannot
find a proper and stable solution.
Should I maybe just mount the domU over the network (portmap) to have
a non-crashing solution?
Best regards,
Pascal
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
|
Home