|
Ah! Right, I guess my actual question was:
How does osd crush chooseleaf type = 0 and 1 alter the crushmap?
By experimentation I've figured out that:
"osd crush chooseleaf type = 0" turns into "step choose firstn 0
type osd" and
"osd crush chooseleaf type = 1" turns into "step chooseleaf
firstn 0 type host".
Changing the crushmap in this way worked perfectly for me, ceph
-s complained while doing the rebalancing, but eventually became
happy with the result.
On 02/02/18 17:07, Gregory Farnum
wrote:
Once you've created a crush map you need to edit it
directly (either by dumping it from the cluster, editing with
the crush tool, and importing; or via the ceph cli commands),
rather than by updating config settings. I believe doing so is
explained in the ceph docs.
Hi, I'm just
starting to play around with Ceph, so please excuse my
complete lack of a clue if this question is covered somewhere,
but I
have been unable to find an answer.
I have a single machine running Ceph which was set up with osd
crush
chooseleaf type = 0 in /etc/ceph/ceph.conf, now I've added a
new machine
with some new OSDs, so I'd like to change to osd crush
chooseleaf type =
1 and have Ceph re-balance the replicas.
How do I do that?
Preferably I'd like to make the change without making the
cluster
unavailable.
So far I've edited the config file and tried restarting
daemons,
including rebooting the entire OS, but I still see PGs that
live only on
one host.
I've read the config docuemntation page but it doesn't mention
what to
do to make that specific config change take effect:
http://docs.ceph.com/docs/master/rados/configuration/ceph-conf/
I've barked up the crushmap tree a bit, but I did not see how
"osd crush
chooseleaf type" relates to that in any way.
--
Regards Flemming Frandsen - Stibo Systems - DK - STEP
Release Manager
Please use release@xxxxxxxxx
for all Release Management requests
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
--
Regards Flemming Frandsen - Stibo Systems - DK - STEP Release Manager
Please use release@xxxxxxxxx for all Release Management requests
|
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
