[sheepdog-users] Time to get a node info or md info

[Valerio Pachera]

2013/8/9 Liu Yuan <namei.unix at gmail.com>:
> The long wait time doesn't attribute to how sheepdog get the disk usage, but how
> busy sheep daemon is. In the recovery, sheep main loop is saturated by recovery
> requests and the 'md info' get kind of starved.

Ok, clear.
During recovery sheep was using no more than 20% of cpu and disks are
busy between 30% and 60% (on the weak server).
With no recovery and no guests running, it takes 30 seconds.

root at sheepdog001:~# collie node recovery
Nodes In Recovery:
  Id   Host:Port         V-Nodes       Zone       Progress

root at sheepdog001:~# time collie node md info --all
Id      Size    Used    Avail   Use%    Path
Node 0:
 0      166 GB  154 GB  12 GB    92%    /mnt/sheep/dsk01/obj
 1      465 GB  319 GB  147 GB   68%    /mnt/sheep/dsk02
 2      1.8 TB  1.1 TB  716 GB   61%    /mnt/sheep/dsk03
Node 1:
 0      166 GB  84 GB   82 GB    50%    /mnt/sheep/dsk01/obj
 1      465 GB  299 GB  166 GB   64%    /mnt/sheep/dsk02
 2      1.8 TB  1.2 TB  667 GB   64%    /mnt/sheep/dsk03
Node 2:
 0      2.7 TB  1.9 TB  873 GB   68%    /mnt/sheep/dsk02
Node 3:
 0      465 GB  215 GB  250 GB   46%    /mnt/sheep/dsk03
 1      1.8 TB  1.4 TB  449 GB   75%    /mnt/sheep/dsk04

real    0m30.504s
user    0m0.000s
sys     0m0.012s

Correct me if I'm wrong but md info is calculated one after the other,
not in parallel right?