You could also:
ceph osd set norebalance
--
Paul Mezzanini
Sr Systems Administrator / Engineer, Research Computing
Information & Technology Services
Finance & Administration
Rochester Institute of Technology
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------------------------
________________________________________
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?
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