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Set up
$ ceph osd pool create rbda
pool 'rbda' created
$ rbd pool init rbda
$ rbd create rbda/image1 --size 1000
Test at map options level
$ OPTIONS="alloc_size=65536,lock_on_read"
$ EXPECTED="${OPTIONS}"
$ DEV=$(sudo rbd map rbda/image1 --options ${OPTIONS})
$ sudo grep -q ${EXPECTED} /sys/bus/rbd/devices/${DEV#/dev/rbd}/config_info
$ sudo rbd unmap rbda/image1
Test at global level
$ OPTIONS="alloc_size=4096,crc"
$ EXPECTED="${OPTIONS}"
$ rbd config global set global rbd_default_map_options ${OPTIONS}
$ DEV=$(sudo rbd map rbda/image1)
$ sudo grep -q ${EXPECTED} /sys/bus/rbd/devices/${DEV#/dev/rbd}/config_info
$ sudo rbd unmap rbda/image1
$ OPTIONS="alloc_size=65536,lock_on_read"
$ EXPECTED="alloc_size=65536,crc,lock_on_read"
$ DEV=$(sudo rbd map rbda/image1 --options ${OPTIONS})
$ sudo grep -q ${EXPECTED} /sys/bus/rbd/devices/${DEV#/dev/rbd}/config_info
$ sudo rbd unmap rbda/image1
Test at pool level
$ OPTIONS="alloc_size=8192,share"
$ EXPECTED="${OPTIONS}"
$ rbd config pool set rbda rbd_default_map_options ${OPTIONS}
$ DEV=$(sudo rbd map rbda/image1)
$ sudo grep -q ${EXPECTED} /sys/bus/rbd/devices/${DEV#/dev/rbd}/config_info
$ sudo rbd unmap rbda/image1
$ OPTIONS="lock_on_read,alloc_size=65536"
$ EXPECTED="alloc_size=65536,lock_on_read,share"
$ DEV=$(sudo rbd map rbda/image1 --options ${OPTIONS})
$ sudo grep -q ${EXPECTED} /sys/bus/rbd/devices/${DEV#/dev/rbd}/config_info
$ sudo rbd unmap rbda/image1
Test at image level
$ OPTIONS="alloc_size=16384,tcp_nodelay"
$ EXPECTED="${OPTIONS}"
$ rbd config image set rbda/image1 rbd_default_map_options ${OPTIONS}
$ DEV=$(sudo rbd map rbda/image1)
$ sudo grep -q ${EXPECTED} /sys/bus/rbd/devices/${DEV#/dev/rbd}/config_info
$ sudo rbd unmap rbda/image1
$ OPTIONS="lock_on_read,alloc_size=65536"
$ EXPECTED="alloc_size=65536,lock_on_read,tcp_nodelay"
$ DEV=$(sudo rbd map rbda/image1 --options ${OPTIONS})
$ sudo grep -q ${EXPECTED} /sys/bus/rbd/devices/${DEV#/dev/rbd}/config_info
$ sudo rbd unmap rbda/image1
Teardown
$ ceph osd pool rm rbda rbda --yes-i-really-really-mean-it
pool 'rbda' removed
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