Paul, I have tried your idea but it didn't work, i did set nobalance but it still did rebalancing and fill lots of data on my new OSD. I believe your option doesn't work with ceph-ansible playbook On Tue, Oct 1, 2019 at 2:45 PM Satish Patel <satish.txt@xxxxxxxxx> wrote: > > You are saying set "ceph osd set norebalance" before running > ceph-ansible playbook to add OSD > > once osd visible in "ceph osd tree" then i should do reweight to 0 > and then do "ceph osd unset norebalance" > > On Tue, Oct 1, 2019 at 2:41 PM Paul Mezzanini <pfmeec@xxxxxxx> wrote: > > > > You could also: > > ceph osd set norebalance > > > > > > -- > > Paul Mezzanini > > Sr Systems Administrator / Engineer, Research Computing > > Information & Technology Services > > Finance & Administration > > Rochester Institute of Technology > > o:(585) 475-3245 | pfmeec@xxxxxxx > > > > CONFIDENTIALITY NOTE: The information transmitted, including attachments, is > > intended only for the person(s) or entity to which it is addressed and may > > contain confidential and/or privileged material. Any review, retransmission, > > dissemination or other use of, or taking of any action in reliance upon this > > information by persons or entities other than the intended recipient is > > prohibited. If you received this in error, please contact the sender and > > destroy any copies of this information. > > ------------------------ > > > > ________________________________________ > > From: ceph-users <ceph-users-bounces@xxxxxxxxxxxxxx> on behalf of Satish Patel <satish.txt@xxxxxxxxx> > > Sent: Tuesday, October 1, 2019 2:34 PM > > To: ceph-users > > Subject: how to set osd_crush_initial_weight 0 without restart any service > > > > Folks, > > > > Method: 1 > > > > In my lab i am playing with ceph and trying to understand how to add > > new OSD without starting rebalancing. > > > > I want to add this option on fly so i don't need to restart any > > services or anything. > > > > $ ceph tell mon.* injectargs '--osd_crush_initial_weight 0' > > > > $ ceph daemon /var/run/ceph/ceph-mon.*.asok config show | grep > > osd_crush_initial_weight > > "osd_crush_initial_weight": "0.000000", > > > > All looks good, now i am adding OSD with ceph-ansible and you know > > what look like it don't honer that option and adding OSD with default > > weight (In my case i have 1.9TB SSD so weight is 1.7) > > > > Can someone confirm injectargs work with osd_crush_initial_weight ? > > > > > > Method: 2 > > > > Now i have added that option in ceph-ansible playbook like following > > > > ceph_conf_overrides: > > osd: > > osd_crush_initial_weight: 0 > > > > and i run playbook and it did magic and added OSD with weight zero (0) > > but i have notice it restarted all OSD daemon on that node, i am > > worried is it safe to restart osd daemon on ceph in production? > > _______________________________________________ > > ceph-users mailing list > > ceph-users@xxxxxxxxxxxxxx > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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