def main():
print "Creating the sanlock disk"
fd, disk = tempfile.mkstemp()
os.close(fd)
offset = sanlock.get_alignment(disk)
SNLK_DISKS = [(disk, offset)]
print "Registering to sanlock"
fd = sanlock.register()
print "Initializing '%s'" % (LOCKSPACE_NAME, )
sanlock.init_lockspace(LOCKSPACE_NAME, disk)
print "Initializing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.init_resource(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS)
print "Acquiring the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME)
sanlock.add_lockspace(LOCKSPACE_NAME, HOST_ID, disk)
try:
print "Acquiring '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.acquire(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd)
print "Releasing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.release(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd)
finally:
print "Releasing the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME)
sanlock.rem_lockspace(LOCKSPACE_NAME, HOST_ID, disk)
print "Removing the sanlock disk"
os.remove(disk)
def main():
print "Creating the sanlock disk"
fd, disk = tempfile.mkstemp()
os.close(fd)
offset = sanlock.get_alignment(disk)
SNLK_DISKS = [(disk, offset)]
print "Registering to sanlock"
fd = sanlock.register()
print "Initializing '%s'" % (LOCKSPACE_NAME,)
sanlock.init_lockspace(LOCKSPACE_NAME, disk)
print "Initializing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.init_resource(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS)
print "Acquiring the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME)
sanlock.add_lockspace(LOCKSPACE_NAME, HOST_ID, disk)
try:
print "Acquiring '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.acquire(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd)
print "Releasing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.release(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd)
finally:
print "Releasing the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME)
sanlock.rem_lockspace(LOCKSPACE_NAME, HOST_ID, disk)
print "Removing the sanlock disk"
os.remove(disk)
def main():
signal.signal(signal.SIGTERM, sigTermHandler)
print "Creating the sanlock disk"
fd, disk = tempfile.mkstemp()
os.close(fd)
os.chown(disk,
pwd.getpwnam("sanlock").pw_uid,
grp.getgrnam("sanlock").gr_gid)
offset = sanlock.get_alignment(disk)
SNLK_DISKS = [(disk, offset)]
print "Registering to sanlock"
fd = sanlock.register()
print "Initializing '%s'" % (LOCKSPACE_NAME, )
sanlock.write_lockspace(LOCKSPACE_NAME, disk)
print "Initializing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.write_resource(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS)
print "Acquiring the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME)
sanlock.add_lockspace(LOCKSPACE_NAME, HOST_ID, disk)
try:
print "Acquiring '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.acquire(LOCKSPACE_NAME,
RESOURCE_NAME,
SNLK_DISKS,
slkfd=fd,
version=0)
while True:
print "Trying to get lockspace '%s' hosts" % LOCKSPACE_NAME
try:
hosts_list = sanlock.get_hosts(LOCKSPACE_NAME)
except sanlock.SanlockException as e:
if e.errno != os.errno.EAGAIN:
raise
else:
print "Lockspace '%s' hosts: " % LOCKSPACE_NAME, hosts_list
break
time.sleep(5)
print "Resource '%s' owners: " % RESOURCE_NAME, \
sanlock.read_resource_owners(
LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS)
print "Releasing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.release(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd)
except Exception as e:
print "Exception: ", e
finally:
print "Releasing the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME)
sanlock.rem_lockspace(LOCKSPACE_NAME, HOST_ID, disk)
print "Removing the sanlock disk"
os.remove(disk)
def main():
signal.signal(signal.SIGTERM, sigTermHandler)
print "Creating the sanlock disk"
fd, disk = tempfile.mkstemp()
os.close(fd)
os.chown(disk, pwd.getpwnam("sanlock").pw_uid, grp.getgrnam("sanlock").gr_gid)
offset = sanlock.get_alignment(disk)
SNLK_DISKS = [(disk, offset)]
print "Registering to sanlock"
fd = sanlock.register()
print "Initializing '%s'" % (LOCKSPACE_NAME,)
sanlock.write_lockspace(LOCKSPACE_NAME, disk, max_hosts=0, iotimeout=0, align=1048576, sector=512)
print "Initializing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.write_resource(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, align=1048576, sector=512)
print "Acquiring the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME)
sanlock.add_lockspace(LOCKSPACE_NAME, HOST_ID, disk)
try:
print "Acquiring '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.acquire(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd,
version=0)
while True:
print "Trying to get lockspace '%s' hosts" % LOCKSPACE_NAME
try:
hosts_list = sanlock.get_hosts(LOCKSPACE_NAME)
except sanlock.SanlockException as e:
if e.errno != os.errno.EAGAIN:
raise
else:
print "Lockspace '%s' hosts: " % LOCKSPACE_NAME, hosts_list
break
time.sleep(5)
print "Resource '%s' owners: " % RESOURCE_NAME, \
sanlock.read_resource_owners(
LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, align=1048576, sector=512)
print "Releasing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME)
sanlock.release(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd)
except Exception as e:
print "Exception: ", e
finally:
print "Releasing the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME)
sanlock.rem_lockspace(LOCKSPACE_NAME, HOST_ID, disk)
print "Removing the sanlock disk"
os.remove(disk)
def test_get_alignment_parse_args(no_sanlock_daemon, filename, encoding):
path = util.generate_path("/tmp/", filename, encoding)
with raises_sanlock_errno(errno.ENOENT):
sanlock.get_alignment(path)
#!/usr/bin/python
import sys, os
import time
from multiprocessing import Process
import tempfile
import sanlock
RESOURCE_NAME = "8e38c2837de14cbe83f578153d8dd808"
LOCKSPACE_NAME = '__LIBVIRT__DISKS__'
SANLOCK_PATH = '/var/lib/libvirt/sanlock/'
SANLOCK_PATH = os.path.abspath(SANLOCK_PATH + RESOURCE_NAME)
offset = sanlock.get_alignment(SANLOCK_PATH)
SNLK_DISKS = [(SANLOCK_PATH, offset)]
def sanlock_acquire(hostId, lockspacePath, leasePath):
sfd = sanlock.register()
if not sanlock.inq_lockspace(LOCKSPACE_NAME, hostId, lockspacePath):
msg = "Try to acquire host id %s:%s:%s:0" % (LOCKSPACE_NAME, hostId,
lockspacePath)
print(msg)
sanlock.add_lockspace(LOCKSPACE_NAME, hostId, lockspacePath)
msg = "Try to acquire leader lease:%s" % str(leasePath)
print(msg)
sanlock.acquire(LOCKSPACE_NAME, RESOURCE_NAME, [(leasePath, 0)], sfd)
if __name__ == "__main__":
host_id = int(sys.argv[1])
lockspace_path = sys.argv[2]
lease_path = sys.argv[3]
