Hi, I have a small but impacting error in my crush rules. For unknown reasons the rules are not using host but osd to place the data and thus we have some nodes with all three copies instead of three different nodes. We noticed this when rebooting a node and a pg became stale.
My crush rule:
{
"rule_id": 0,
"rule_name": "replicated_rule",
"ruleset": 0,
"type": 1,
"min_size": 1,
"max_size": 10,
"steps": [
{
"op": "take",
"item": -2,
"item_name": "default~hdd"
},
{
"op": "chooseleaf_firstn",
"num": 0,
"type": "osd"
},
{
"op": "emit"
}
]
},
Type should be host of course. And I want to alter this and move pg's such that
all is as should.
How can I best proceed in correcting this issue? I do like to throttle the
remapping of the data so ceph itself won't be unavailable while the data is
redistributed.
We are running on Mimic (13.2.6), and this environment has been installed
freshly as Mimic while using ceph-ansible.
Current ceph -s output:
cluster:
id: <<fsid>
health: HEALTH_OK
services:
mon: 3 daemons, quorum mon01,mon02,mon03
mgr: mon01(active), standbys: mon02, mon03
mds: cephfs-2/2/2 up {0=mon03=up:active,1=mon01=up:active}, 1 up:standby
osd: 502 osds: 502 up, 502 in
data:
pools: 18 pools, 8192 pgs
objects: 28.74 M objects, 100 TiB
usage: 331 TiB used, 2.3 PiB / 2.6 PiB avail
pgs: 8192 active+clean
Cheers,
Maarten van Ingen
| Systems Expert | Distributed Data Processing | SURFsara | Science Park 140 |
1098 XG Amsterdam |
| T +31 (0) 20 800 1300 | maarten.vanin...@surfsara.nl | https://surfsara.nl |
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