That is not my experience:
$ ceph -v
ceph version 0.86-579-g06a73c3 (06a73c39169f2f332dec760f56d3ec20455b1646)
$ cat /etc/ceph/ceph.conf
[global]
...
osd pool default size = 2
$ ceph osd dump|grep size
pool 2 'hot' replicated size 2 min_size 1 crush_ruleset 0 object_hash
rjenkins pg_num 128 pgp_num 128 last_change 47 flags
hashpspool,incomplete_clones tier_of 1 cache_mode writeback target_bytes
2000000000 hit_set bloom{false_positive_probability: 0.05, target_size:
0, seed: 0} 3600s x1 stripe_width 0
pool 10 '.rgw.root' replicated size 2 min_size 1 crush_ruleset 0
object_hash rjenkins pg_num 8 pgp_num 8 last_change 102 owner
18446744073709551615 flags hashpspool stripe_width 0
pool 11 '.rgw.control' replicated size 2 min_size 1 crush_ruleset 0
object_hash rjenkins pg_num 8 pgp_num 8 last_change 104 owner
18446744073709551615 flags hashpspool stripe_width 0
pool 12 '.rgw' replicated size 2 min_size 1 crush_ruleset 0 object_hash
rjenkins pg_num 8 pgp_num 8 last_change 106 owner 18446744073709551615
flags hashpspool stripe_width 0
pool 13 '.rgw.gc' replicated size 2 min_size 1 crush_ruleset 0
object_hash rjenkins pg_num 8 pgp_num 8 last_change 107 owner
18446744073709551615 flags hashpspool stripe_width 0
pool 14 '.users.uid' replicated size 2 min_size 1 crush_ruleset 0
object_hash rjenkins pg_num 8 pgp_num 8 last_change 108 owner
18446744073709551615 flags hashpspool stripe_width 0
pool 15 '.rgw.buckets.index' replicated size 2 min_size 1 crush_ruleset
0 object_hash rjenkins pg_num 8 pgp_num 8 last_change 110 owner
18446744073709551615 flags hashpspool stripe_width 0
pool 16 '.rgw.buckets' replicated size 2 min_size 1 crush_ruleset 0
object_hash rjenkins pg_num 8 pgp_num 8 last_change 112 owner
18446744073709551615 flags hashpspool stripe_width 0
pool 17 'rbd' replicated size 2 min_size 1 crush_ruleset 0 object_hash
rjenkins pg_num 1024 pgp_num 1024 last_change 186 flags hashpspool
stripe_width 0
On 29/10/14 21:46, Irek Fasikhov wrote:
Hi.
This parameter does not apply to pools by default.
ceph osd dump | grep pool. see size=?
2014-10-29 11:40 GMT+03:00 Vickie CH <mika.leaf666@xxxxxxxxx
<mailto:mika.leaf666@xxxxxxxxx>>:
Der Irek：
Thanks for your reply.
Even already set "osd_pool_default_size = 2" the cluster still need
3 different hosts right？
Is this default number can be changed by user and write into
ceph.conf before deploy？
Best wishes,
Mika
2014-10-29 16:29 GMT+08:00 Irek Fasikhov <malmyzh@xxxxxxxxx
<mailto:malmyzh@xxxxxxxxx>>:
Hi.
Because the disc requires three different hosts, the default
number of replications 3.
2014-10-29 10:56 GMT+03:00 Vickie CH <mika.leaf666@xxxxxxxxx
<mailto:mika.leaf666@xxxxxxxxx>>:
Hi all,
Try to use two OSDs to create a cluster. After the
deply finished, I found the health status is "88
active+degraded" "104 active+remapped". Before use 2 osds to
create cluster the result is ok. I'm confuse why this
situation happened. Do I need to set crush map to fix this
problem？
----------ceph.conf---------------------------------
[global]
fsid = c404ded6-4086-4f0b-b479-89bc018af954
mon_initial_members = storage0
mon_host = 192.168.1.10
auth_cluster_required = cephx
auth_service_required = cephx
auth_client_required = cephx
filestore_xattr_use_omap = true
osd_pool_default_size = 2
osd_pool_default_min_size = 1
osd_pool_default_pg_num = 128
osd_journal_size = 2048
osd_pool_default_pgp_num = 128
osd_mkfs_type = xfs
---------------------------------------------------------
-----------ceph -s-----------------------------------
cluster c404ded6-4086-4f0b-b479-89bc018af954
health HEALTH_WARN 88 pgs degraded; 192 pgs stuck unclean
monmap e1: 1 mons at {storage0=192.168.10.10:6789/0
<http://192.168.10.10:6789/0>}, election epoch 2, quorum 0
storage0
osdmap e20: 2 osds: 2 up, 2 in
pgmap v45: 192 pgs, 3 pools, 0 bytes data, 0 objects
79752 kB used, 1858 GB / 1858 GB avail
88 active+degraded
104 active+remapped
--------------------------------------------------------
Best wishes,
Mika
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С уважением, Фасихов Ирек Нургаязович
Моб.: +79229045757
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С уважением, Фасихов Ирек Нургаязович
Моб.: +79229045757
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