Re: Upgrade from Giant 0.87-1 to Hammer 0.94-1

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Now I also know I have too many PGs!  

It is fairly confusing to talk about PGs on the Pool page, but only vaguely 
talk about the number of PGs for the cluster.

Here are some examples of confusing statements with suggested alternatives 
from the online docs:

http://ceph.com/docs/master/rados/operations/pools/

"A typical configuration uses approximately 100 placement groups per OSD to 
provide optimal balancing without using up too many computing resources."
->
"A typical configuration uses approximately 100 placement groups per OSD for 
all pools to provide optimal balancing without using up too many computing 
resources."


http://ceph.com/docs/master/rados/operations/placement-groups/

"It is mandatory to choose the value of pg_num because it cannot be calculated 
automatically. Here are a few values commonly used:"
->
"It is mandatory to choose the value of pg_num.  Because pg_num depends on the 
planned number of pools in the cluster, it cannot be determined automatically 
on pool creation. Please use this calculator: http://ceph.com/pgcalc/";

Thanks!
C.
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com




[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Ceph Dev]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux