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$ osdmaptool --createsimple 3 myosdmap --with-default-pool
osdmaptool: osdmap file 'myosdmap'
osdmaptool: writing epoch 1 to myosdmap
$ ORIG_FSID="$(osdmaptool --print myosdmap|grep ^fsid)"
osdmaptool: osdmap file 'myosdmap'
$ osdmaptool --createsimple 3 myosdmap --with-default-pool
osdmaptool: osdmap file 'myosdmap'
osdmaptool: myosdmap exists, --clobber to overwrite
[255]
# hasn't changed yet
#TODO typo
$ 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}T\d{2}:\d{2}:\d{2}\.\d+.\d\d\d\d (re)
modified \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+.\d\d\d\d (re)
flags
crush_version 1
full_ratio 0
backfillfull_ratio 0
nearfull_ratio 0
min_compat_client jewel
stretch_mode_enabled false
pool 1 'rbd' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 192 pgp_num 192 autoscale_mode on last_change 0 flags hashpspool stripe_width 0 application rbd
max_osd 3
$ NEW_FSID="$(osdmaptool --print myosdmap|grep ^fsid)"
osdmaptool: osdmap file 'myosdmap'
$ [ "$ORIG_FSID" = "$NEW_FSID" ]
$ osdmaptool --createsimple 1 --clobber myosdmap --with-default-pool
osdmaptool: osdmap file 'myosdmap'
osdmaptool: writing epoch 1 to myosdmap
$ 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}T\d{2}:\d{2}:\d{2}\.\d+.\d\d\d\d (re)
modified \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+.\d\d\d\d (re)
flags
crush_version 1
full_ratio 0
backfillfull_ratio 0
nearfull_ratio 0
min_compat_client jewel
stretch_mode_enabled false
pool 1 'rbd' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 64 pgp_num 64 autoscale_mode on last_change 0 flags hashpspool stripe_width 0 application rbd
max_osd 1
$ NEW_FSID="$(osdmaptool --print myosdmap|grep ^fsid)"
osdmaptool: osdmap file 'myosdmap'
#TODO --clobber should probably set new fsid, remove the [1]
$ [ "$ORIG_FSID" != "$NEW_FSID" ]
[1]
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