+++ /dev/null
- $ osdmaptool --createsimple 3 myosdmap --with-default-pool
- osdmaptool: osdmap file 'myosdmap'
- osdmaptool: writing epoch 1 to myosdmap
-
- $ osdmaptool --export-crush oc myosdmap
- osdmaptool: osdmap file 'myosdmap'
- osdmaptool: exported crush map to oc
- $ crushtool --decompile oc
- # 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 chooseleaf_stable 1
- tunable straw_calc_version 1
- tunable allowed_bucket_algs 54
-
- # devices
- device 0 osd.0
- device 1 osd.1
- device 2 osd.2
-
- # 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 localhost {
- \tid -2\t\t# do not change unnecessarily (esc)
- \t# weight 3.000 (esc)
- \talg straw2 (esc)
- \thash 0\t# rjenkins1 (esc)
- \titem osd.0 weight 1.000 (esc)
- \titem osd.1 weight 1.000 (esc)
- \titem osd.2 weight 1.000 (esc)
- }
- rack localrack {
- \tid -3\t\t# do not change unnecessarily (esc)
- \t# weight 3.000 (esc)
- \talg straw2 (esc)
- \thash 0\t# rjenkins1 (esc)
- \titem localhost weight 3.000 (esc)
- }
- root default {
- \tid -1\t\t# do not change unnecessarily (esc)
- \t# weight 3.000 (esc)
- \talg straw2 (esc)
- \thash 0\t# rjenkins1 (esc)
- \titem localrack weight 3.000 (esc)
- }
-
- # rules
- rule replicated_rule {
- \tid 0 (esc)
- \ttype replicated (esc)
- \tmin_size 1 (esc)
- \tmax_size 10 (esc)
- \tstep take default (esc)
- \tstep chooseleaf firstn 0 type host (esc)
- \tstep emit (esc)
- }
-
- # end crush map
- $ osdmaptool --print myosdmap
- osdmaptool: osdmap file 'myosdmap'
- epoch 1
- fsid [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (re)
- created \d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d+ (re)
- modified \d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d+ (re)
- flags
- crush_version 1
- full_ratio 0
- backfillfull_ratio 0
- nearfull_ratio 0
- min_compat_client jewel
-
- pool 1 'rbd' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 192 pgp_num 192 last_change 0 flags hashpspool stripe_width 0 application rbd
-
- max_osd 3
-
- $ osdmaptool --clobber --createsimple 3 --with-default-pool myosdmap
- osdmaptool: osdmap file 'myosdmap'
- osdmaptool: writing epoch 1 to myosdmap
- $ osdmaptool --print myosdmap | grep 'pool 1'
- osdmaptool: osdmap file 'myosdmap'
- pool 1 'rbd' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 192 pgp_num 192 last_change 0 flags hashpspool stripe_width 0 application rbd
- $ rm -f myosdmap