ceph not replicating to all osds

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Hi ALL, 

Anyone can help with this issue would be much appreciated.

I have created an  image on one client and mounted it on both 2 client I have setup.

When I write data on one client, I cannot access the data on another client, what could be causing this issue?

root@nodeB:/mnt# ceph osd tree
ID WEIGHT  TYPE NAME      UP/DOWN REWEIGHT PRIMARY-AFFINITY 
-1 1.81738 root default                                     
-2 0.90869     host nodeB                                   
 0 0.90869         osd.0       up  1.00000          1.00000 
-3 0.90869     host nodeC                                   
 1 0.90869         osd.1       up  1.00000          1.00000 


cluster_master@nodeC:/mnt$ ceph osd dump | grep data
pool 1 'data' replicated size 2 min_size 1 crush_ruleset 0 object_hash rjenkins pg_num 128 pgp_num 128 last_change 17 flags hashpspool stripe_width 0


cluster_master@nodeC:/mnt$ cat decompiled-crush-map.txt 
# begin crush map
tunable choose_local_tries 0
tunable choose_local_fallback_tries 0
tunable choose_total_tries 50
tunable chooseleaf_descend_once 1
tunable chooseleaf_vary_r 1
tunable straw_calc_version 1

# devices
device 0 osd.0
device 1 osd.1

# types
type 0 osd
type 1 host
type 2 chassis
type 3 rack
type 4 row
type 5 pdu
type 6 pod
type 7 room
type 8 datacenter
type 9 region
type 10 root

# buckets
host nodeB {
id -2 # do not change unnecessarily
# weight 0.909
alg straw
hash 0 # rjenkins1
item osd.0 weight 0.909
}
host nodeC {
id -3 # do not change unnecessarily
# weight 0.909
alg straw
hash 0 # rjenkins1
item osd.1 weight 0.909
}
root default {
id -1 # do not change unnecessarily
# weight 1.817
alg straw
hash 0 # rjenkins1
item nodeB weight 0.909
item nodeC weight 0.909
}

# rules
rule replicated_ruleset {
ruleset 0
type replicated
min_size 1
max_size 10
step take default
step chooseleaf firstn 0 type host
step emit
}

# end crush map

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