[CRIU] Pager Server support on Version 0.5

Pavel Emelyanov xemul at parallels.com
Sat May 4 05:29:26 EDT 2013


On 05/04/2013 04:28 AM, Bhargav Bhikkaji wrote:
> Hi All,
> 
> I am trying to test the page server support. Have 2 VM's, VM-1 and VM-2.
> 
> 1) On VM-1, started the page-server using following command
> ./crtools page-server -D /root/download/cpimages --port 23234 &
> 
> 2) On VM-2, a process is running with PID 8596. Checkpoint this process using following command
> ./crtools dump -vvvv -D /root/download/cpimages  -o /root/download/cpimages/dump.log -t 8596 --page-server --address 10.11.204.130 --port 23234 -R --shell-job && echo OK
> 
> 3) 10.11.204.130 is ip address of VM-1 & 23234 is port on which page-server is running.
> 
> 4) I don't see all the images are copied on VM-1's /root/download/cpimages/ dir. Only following is observed
> 
> root at VM-1:~/download/cpimages# ls
> pagemap-31280.img  pagemap-8596.img  pages-65537.img  pages-65538.img

The page-server handles only images with pages. All the other images are kept on the "dump"
side and should transferred by other means (e.g. scp or rsync). That's because page dumps
are typically 99% of size and we'd like to avoid duplicating them on two hosts.

> 5) When restore is called on VM-1, does not go thro' because of invertory.img.
> 
> Pls let me know what i am missing here ?
> 
> Thanks
> Bhargav
> 
> 
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