def initLock(self, lease):
self.log.info(
"Initializing sanlock for domain %s path=%s alignment=%s "
"block_size=%s io_timeout=%s",
self._sdUUID, self._idsPath, self._alignment, self._block_size,
self._io_timeout)
resource_name = lease.name.encode("utf-8")
try:
sanlock.write_lockspace(
self._lockspace_name,
self._idsPath,
iotimeout=self._io_timeout,
align=self._alignment,
sector=self._block_size)
sanlock.write_resource(
self._lockspace_name,
resource_name,
[(lease.path, lease.offset)],
align=self._alignment,
sector=self._block_size)
except sanlock.SanlockException:
self.log.exception(
"Cannot initialize lock for domain %s", self._sdUUID)
raise se.ClusterLockInitError()
def test_write_resource(
tmpdir, sanlock_daemon, filename, encoding, size, offset):
path = util.generate_path(tmpdir, filename, encoding)
util.create_file(path, size)
disks = [(path, offset)]
# Test read and write with default alignment and sector size values.
sanlock.write_resource(b"ls_name", b"res_name", disks)
res = sanlock.read_resource(path, offset=offset)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 0
}
# Test read and write with explicit alignment and sector size values.
sanlock.write_resource(
b"ls_name", b"res_name", disks, align=ALIGNMENT_1M,
sector=SECTOR_SIZE_512)
res = sanlock.read_resource(
path, offset=offset, align=ALIGNMENT_1M, sector=SECTOR_SIZE_512)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 0
}
owners = sanlock.read_resource_owners(b"ls_name", b"res_name", disks)
assert owners == []
magic = util.read_magic(path, offset)
assert magic == constants.PAXOS_DISK_MAGIC
util.check_guard(path, size)
def test_write_resource_4k_invalid_sector_size(sanlock_daemon, user_4k_path):
disks = [(user_4k_path, 0)]
with pytest.raises(sanlock.SanlockException) as e:
sanlock.write_resource(
b"ls_name", b"res_name", disks, sector=SECTOR_SIZE_512)
assert e.value.errno == errno.EINVAL
def test_write_resource_4k(sanlock_daemon, user_4k_path, align):
disks = [(user_4k_path, 0)]
# Poison resource area, ensuring that previous tests will not break this
# test, and sanlock does not write beyond the lockspace area.
with io.open(user_4k_path, "rb+") as f:
f.write(align * b"x")
util.write_guard(user_4k_path, align)
sanlock.write_resource(
b"ls_name", b"res_name", disks, align=align, sector=SECTOR_SIZE_4K)
res = sanlock.read_resource(
user_4k_path, align=align, sector=SECTOR_SIZE_4K)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 0
}
owners = sanlock.read_resource_owners(
b"ls_name", b"res_name", disks, align=align, sector=SECTOR_SIZE_4K)
assert owners == []
# Verify that resource was written.
magic = util.read_magic(user_4k_path)
assert magic == constants.PAXOS_DISK_MAGIC
# Check that sanlock did not write beyond the lockspace area.
util.check_guard(user_4k_path, align)
def test_write_resource_4k_invalid_sector_size(sanlock_daemon, user_4k_path):
disks = [(user_4k_path, 0)]
with pytest.raises(sanlock.SanlockException) as e:
sanlock.write_resource(
"ls_name", "res_name", disks, sector=SECTOR_SIZE_512)
assert e.value.errno == errno.EINVAL
def test_write_resource_4k(sanlock_daemon, user_4k_path, align):
disks = [(user_4k_path, 0)]
# Poison resource area, ensuring that previous tests will not break this
# test, and sanlock does not write beyond the lockspace area.
with io.open(user_4k_path, "rb+") as f:
f.write(align * b"x")
util.write_guard(user_4k_path, align)
sanlock.write_resource(
"ls_name", "res_name", disks, align=align, sector=SECTOR_SIZE_4K)
res = sanlock.read_resource(
user_4k_path, align=align, sector=SECTOR_SIZE_4K)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 0
}
owners = sanlock.read_resource_owners(
"ls_name", "res_name", disks, align=align, sector=SECTOR_SIZE_4K)
assert owners == []
# Verify that resource was written.
with io.open(user_4k_path, "rb") as f:
magic, = struct.unpack("< I", f.read(4))
assert magic == constants.PAXOS_DISK_MAGIC
# Check that sanlock did not write beyond the lockspace area.
util.check_guard(user_4k_path, align)
def remove(self, lease_id):
"""
Remove lease from index
Raises:
- NoSuchLease if lease was not found
- OSError if I/O operation failed
- sanlock.SanlockException if sanlock operation failed.
"""
# TODO: validate lease id is lower case uuid
log.info("Removing lease %r in lockspace %r", lease_id,
self._lockspace)
recnum = self._index.find_record(lease_id)
if recnum == -1:
raise NoSuchLease(lease_id)
record = Record(lease_id, RECORD_STALE)
self._write_record(recnum, record)
# TODO: remove the sanlock resource
# There is no sanlock api for removing a resource.
# This is a hack until we find a better way.
# Need to discuss this with David Teigland.
offset = self._lease_offset(recnum)
sanlock.write_resource("", "", [(self._file.name, offset)])
record = Record(BLANK_UUID, RECORD_FREE)
self._write_record(recnum, record)
def test_write_resource_path_length(no_sanlock_daemon):
path = "x" * constants.SANLK_PATH_LEN
with pytest.raises(ValueError):
sanlock.write_resource(b"ls_name", b"res_name", [(path, 0)])
path = "x" * (constants.SANLK_PATH_LEN - 1)
with raises_sanlock_errno():
sanlock.write_resource(b"ls_name", b"res_name", [(path, 0)])
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 test_clear_empty_storage(tmpdir, sanlock_daemon):
path = util.generate_path(tmpdir, "clear_test")
util.create_file(path, MiB)
disks = [(path, 0)]
# Clear area without any resource written - should succeed
sanlock.write_resource(b"ls_name", b"inval_res_name", disks, clear=True)
magic = util.read_magic(path)
assert magic == constants.PAXOS_DISK_CLEAR
def test_write_resource_invalid_align_sector(
tmpdir, sanlock_daemon, align, sector):
path = str(tmpdir.join("resources"))
util.create_file(path, MIN_RES_SIZE)
disks = [(path, 0)]
with pytest.raises(ValueError):
sanlock.write_resource(
"ls_name", "res_name", disks, align=align, sector=sector)
def test_write_resource_parse_args(no_sanlock_daemon, name, filename,
encoding):
path = util.generate_path("/tmp/", filename, encoding)
disks = [(path, 0)]
with raises_sanlock_errno():
sanlock.write_resource(name, b"res_name", disks)
with raises_sanlock_errno():
sanlock.write_resource(b"ls_name", name, disks)
def test_write_resource_invalid_align_sector(
tmpdir, sanlock_daemon, align, sector):
path = str(tmpdir.join("resources"))
util.create_file(path, MIN_RES_SIZE)
disks = [(path, 0)]
with pytest.raises(ValueError):
sanlock.write_resource(
b"ls_name", b"res_name", disks, align=align, sector=sector)
def _write_resource(path, offset, alignment, block_size, resource, lockspace):
"""
Helper for writing sanlock resources.
"""
log.info("Writing sanlock resource=%s lockspace=%s path=%s offset=%s",
resource, lockspace, path, offset)
sanlock.write_resource(lockspace.encode("utf-8"),
resource.encode("utf-8"), [(path, offset)],
align=alignment,
sector=block_size)
def test_clear_empty_lockspace_resource(tmpdir, sanlock_daemon):
path = util.generate_path(tmpdir, "clear_test")
util.create_file(path, MiB)
disks = [(path, 0)]
sanlock.write_resource(b"ls_name", b"res_name", disks)
# Clear with empty lockspace and resource - should succeed
sanlock.write_resource(b"", b"", disks, clear=True)
magic = util.read_magic(path)
assert magic == constants.PAXOS_DISK_CLEAR
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_init_resource(tmpdir, sanlock_daemon):
path = tmpdir.join("resources")
size = 1024**2
util.create_file(str(path), size)
sanlock.write_resource("ls_name", "res_name", [(str(path), 0)])
with io.open(str(path), "rb") as f:
magic, = struct.unpack("< I", f.read(4))
assert magic == constants.PAXOS_DISK_MAGIC
# TODO: check more stuff here...
util.check_guard(str(path), size)
def test_read_resource_owners_4k_invalid_sector_size(
sanlock_daemon, user_4k_path):
disks = [(user_4k_path, 0)]
sanlock.write_resource(
"ls_name",
"res_name",
disks,
align=ALIGNMENT_1M,
sector=SECTOR_SIZE_4K)
with pytest.raises(sanlock.SanlockException) as e:
sanlock.read_resource_owners(
"ls_name", "res_name", disks, sector=SECTOR_SIZE_512)
assert e.value.errno == errno.EINVAL
def test_read_resource_owners_4k_invalid_sector_size(
sanlock_daemon, user_4k_path):
disks = [(user_4k_path, 0)]
sanlock.write_resource(
b"ls_name",
b"res_name",
disks,
align=ALIGNMENT_1M,
sector=SECTOR_SIZE_4K)
with pytest.raises(sanlock.SanlockException) as e:
sanlock.read_resource_owners(
b"ls_name", b"res_name", disks, sector=SECTOR_SIZE_512)
assert e.value.errno == errno.EINVAL
def newVolumeLease(cls, metaId, sdUUID, volUUID):
cls.log.debug("Initializing volume lease volUUID=%s sdUUID=%s, "
"metaId=%s", volUUID, sdUUID, metaId)
volPath = metaId[0]
leasePath = cls.leaseVolumePath(volPath)
oop.getProcessPool(sdUUID).truncateFile(leasePath, LEASE_FILEOFFSET)
cls.file_setrw(leasePath, rw=True)
manifest = sdCache.produce_manifest(sdUUID)
sanlock.write_resource(
sdUUID.encode("utf-8"),
volUUID.encode("utf-8"),
[(leasePath, LEASE_FILEOFFSET)],
align=manifest.alignment,
sector=manifest.block_size)
def add(self, lease_id):
"""
Add lease to index, returning LeaseInfo.
Raises:
- LeaseExists if lease already stored for lease_id
- InvalidRecord if corrupted lease record is found
- NoSpace if all slots are allocated
- OSError if I/O operation failed
- sanlock.SanlockException if sanlock operation failed.
"""
log.info("Adding lease %r in lockspace %r", lease_id, self.lockspace)
recnum = self._index.find_record(lease_id)
if recnum != -1:
record = self._index.read_record(recnum)
if record.updating:
# Record can have updating flag due to partial creation caused
# by older vdsm versions
log.warning(
"Ignoring partially created lease in updating "
"state recnum=%s resource=%s offset=%s", recnum,
record.resource, record.offset)
else:
raise LeaseExists(lease_id)
else:
recnum = self._index.find_free_record()
if recnum == -1:
raise NoSpace(lease_id)
offset = lease_offset(recnum, self._alignment)
# We create a lease in 2 steps:
# 1. create a sanlock resource in the slot associated with this
# record. If this fails, the index will not change.
# 2. write a new record, making the new resource available. If writing
# a record fails, the index does not change and the new resource
# will not be available.
sanlock.write_resource(self.lockspace.encode("utf-8"),
lease_id.encode("utf-8"),
[(self._file.name, offset)],
align=self._alignment,
sector=self._block_size)
record = Record(lease_id, offset)
self._write_record(recnum, record)
return LeaseInfo(self.lockspace, lease_id, self._file.name, offset)
def test_read_resource_owners_invalid_align_size(tmpdir, sanlock_daemon):
path = str(tmpdir.join("path"))
util.create_file(path, GiB)
disks = [(path, 0)]
sanlock.write_resource(b"ls_name",
b"res_name",
disks,
align=ALIGNMENT_1M,
sector=SECTOR_SIZE_512)
with pytest.raises(sanlock.SanlockException) as e:
sanlock.read_resource_owners(b"ls_name",
b"res_name",
disks,
align=ALIGNMENT_2M,
sector=SECTOR_SIZE_512)
assert e.value.errno == errno.EINVAL
def test_write_resource(tmpdir, sanlock_daemon, size, offset):
path = str(tmpdir.join("resources"))
util.create_file(path, size)
disks = [(path, offset)]
# test read and write with default alignment and sector size values
sanlock.write_resource("ls_name", "res_name", disks)
res = sanlock.read_resource(path, offset=offset)
assert res == {
"lockspace": "ls_name",
"resource": "res_name",
"version": 0
}
# test read and write with explicit alignment and sector size values
sanlock.write_resource("ls_name",
"res_name",
disks,
align=ALIGNMENT_1M,
sector=SECTOR_SIZE_512)
res = sanlock.read_resource(path,
offset=offset,
align=ALIGNMENT_1M,
sector=SECTOR_SIZE_512)
assert res == {
"lockspace": "ls_name",
"resource": "res_name",
"version": 0
}
owners = sanlock.read_resource_owners("ls_name", "res_name", disks)
assert owners == []
with io.open(path, "rb") as f:
f.seek(offset)
magic, = struct.unpack("< I", f.read(4))
assert magic == constants.PAXOS_DISK_MAGIC
# TODO: check more stuff here...
util.check_guard(path, size)
def _repair(broken_leases):
print("Repairing volume leases ...")
total = 0
repaired = 0
for sd_uuid in broken_leases:
for img_uuid in broken_leases[sd_uuid]:
for vol_uuid in broken_leases[sd_uuid][img_uuid]:
total += 1
vol_lease = broken_leases[sd_uuid][img_uuid][vol_uuid]
try:
sanlock.write_resource(
sd_uuid, vol_uuid,
[(vol_lease['path'], vol_lease['offset'])])
repaired += 1
except sanlock.SanlockException as e:
print("Failed to repair lease of volume {}/{}. Error {}".
format(vol_lease['image'], vol_lease['volume'], e))
print("Repaired ({}/{}) volume leases.".format(repaired, total))
def test_read_resource_owners_invalid_align_size(tmpdir, sanlock_daemon):
path = str(tmpdir.join("path"))
util.create_file(path, GiB)
disks = [(path, 0)]
sanlock.write_resource(
"ls_name",
"res_name",
disks,
align=ALIGNMENT_1M,
sector=SECTOR_SIZE_512)
with pytest.raises(sanlock.SanlockException) as e:
sanlock.read_resource_owners(
"ls_name",
"res_name",
disks,
align=ALIGNMENT_2M,
sector=SECTOR_SIZE_512)
assert e.value.errno == errno.EINVAL
def test_write_resource(tmpdir, sanlock_daemon, filename, encoding, size, offset):
path = util.generate_path(tmpdir, filename, encoding)
util.create_file(path, size)
disks = [(path, offset)]
# Test read and write with default alignment and sector size values.
sanlock.write_resource("ls_name", "res_name", disks)
res = sanlock.read_resource(path, offset=offset)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 0
}
# Test read and write with explicit alignment and sector size values.
sanlock.write_resource(
"ls_name", "res_name", disks, align=ALIGNMENT_1M,
sector=SECTOR_SIZE_512)
res = sanlock.read_resource(
path, offset=offset, align=ALIGNMENT_1M, sector=SECTOR_SIZE_512)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 0
}
owners = sanlock.read_resource_owners("ls_name", "res_name", disks)
assert owners == []
with io.open(path, "rb") as f:
f.seek(offset)
magic, = struct.unpack("< I", f.read(4))
assert magic == constants.PAXOS_DISK_MAGIC
# TODO: check more stuff here...
util.check_guard(path, size)
def remove(self, lease_id):
"""
Remove lease from index
Raises:
- NoSuchLease if lease was not found
- OSError if I/O operation failed
- sanlock.SanlockException if sanlock operation failed.
"""
log.info("Removing lease %r in lockspace %r", lease_id, self.lockspace)
recnum = self._index.find_record(lease_id)
if recnum == -1:
raise se.NoSuchLease(lease_id)
offset = lease_offset(recnum, self._alignment)
# We remove a lease in 2 steps:
# 1. write an empty record, making the resource unavailable. If writing
# a record fails, the index does not change and the new resource
# remains available
# 2. write an empty sanlock resource in the slot associated with this
# record. If this fails we log an error and don't fail the removal
# as index is already updated and resource will not be available.
self._write_record(recnum, EMPTY_RECORD)
# There is no way to remove a resource, so we write an invalid resource
# with empty resource and lockspace values.
# TODO: Use SANLK_WRITE_CLEAR, expected in rhel 7.4.
try:
sanlock.write_resource(b"",
b"", [(self._file.name, offset)],
align=self._alignment,
sector=self._block_size)
except sanlock.SanlockException:
log.warning(
"Ignoring failure to clear sanlock resource file=%s "
"offset=%s", self._file.name, offset)
def add(self, lease_id):
"""
Add lease to index, returning LeaseInfo.
Raises:
- LeaseExists if lease already stored for lease_id
- InvalidRecord if corrupted lease record is found
- NoSpace if all slots are allocated
- OSError if I/O operation failed
- sanlock.SanlockException if sanlock operation failed.
"""
# TODO: validate lease id is lower case uuid
log.info("Adding lease %r in lockspace %r", lease_id, self._lockspace)
recnum = self._index.find_record(lease_id)
if recnum != -1:
record = self._index.read_record(recnum)
if record.state == RECORD_STALE:
# TODO: rebuild this record instead of failing
raise StaleLease(lease_id, record.modified)
else:
raise LeaseExists(lease_id, record.modified)
recnum = self._index.find_record(BLANK_UUID)
if recnum == -1:
raise NoSpace(lease_id)
record = Record(lease_id, RECORD_STALE)
self._write_record(recnum, record)
offset = self._lease_offset(recnum)
sanlock.write_resource(self._lockspace, lease_id,
[(self._file.name, offset)])
record = Record(lease_id, RECORD_USED)
self._write_record(recnum, record)
return LeaseInfo(self._lockspace, lease_id, self._file.name, offset,
record.modified)
def test_clear_resource(tmpdir, sanlock_daemon):
path = util.generate_path(tmpdir, "clear_test")
util.create_file(path, MiB)
disks = [(path, 0)]
sanlock.write_resource(b"ls_name", b"res_name", disks)
sanlock.write_resource(b"ls_name", b"res_name", disks, clear=True)
with pytest.raises(sanlock.SanlockException) as e:
sanlock.read_resource(path)
assert e.value.errno == constants.SANLK_LEADER_MAGIC
magic = util.read_magic(path)
assert magic == constants.PAXOS_DISK_CLEAR
util.check_guard(path, MiB)
# run clear on already cleared resource
sanlock.write_resource(b"ls_name", b"res_name", disks, clear=True)
magic = util.read_magic(path)
assert magic == constants.PAXOS_DISK_CLEAR
def _clear_resource(path, offset, alignment, block_size):
log.info("Clearing sanlock resource file=%s offset=%s", path, offset)
sanlock.write_resource(b"",
b"", [(path, offset)],
align=alignment,
sector=block_size)
def test_acquire_release_resource(tmpdir, sanlock_daemon, size, offset):
ls_path = str(tmpdir.join("ls_name"))
util.create_file(ls_path, size)
res_path = str(tmpdir.join("res_name"))
util.create_file(res_path, size)
sanlock.write_lockspace("ls_name", ls_path, offset=offset, iotimeout=1)
sanlock.add_lockspace("ls_name", 1, ls_path, offset=offset, iotimeout=1)
# Host status is not available until the first renewal.
with pytest.raises(sanlock.SanlockException) as e:
sanlock.get_hosts("ls_name", 1)
assert e.value.errno == errno.EAGAIN
time.sleep(1)
host = sanlock.get_hosts("ls_name", 1)[0]
assert host["flags"] == sanlock.HOST_LIVE
disks = [(res_path, offset)]
sanlock.write_resource("ls_name", "res_name", disks)
res = sanlock.read_resource(res_path, offset=offset)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 0
}
owners = sanlock.read_resource_owners("ls_name", "res_name", disks)
assert owners == []
fd = sanlock.register()
sanlock.acquire("ls_name", "res_name", disks, slkfd=fd)
res = sanlock.read_resource(res_path, offset=offset)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 1
}
owner = sanlock.read_resource_owners("ls_name", "res_name", disks)[0]
assert owner["host_id"] == 1
assert owner["flags"] == 0
assert owner["generation"] == 1
assert owner["io_timeout"] == 0 # Why 0?
# TODO: check timestamp.
host = sanlock.get_hosts("ls_name", 1)[0]
assert host["flags"] == sanlock.HOST_LIVE
assert host["generation"] == owner["generation"]
sanlock.release("ls_name", "res_name", disks, slkfd=fd)
res = sanlock.read_resource(res_path, offset=offset)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 1
}
owners = sanlock.read_resource_owners("ls_name", "res_name", disks)
assert owners == []
def test_write_resource_invalid_disk(tmpdir, sanlock_daemon, disk):
# Test parsing disks list with invalid content.
disks = [disk]
with pytest.raises(ValueError) as e:
sanlock.write_resource(b"ls_name", b"res_name", disks)
assert repr(disk) in str(e.value)
def test_acquire_release_resource(tmpdir, sanlock_daemon, size, offset):
ls_path = str(tmpdir.join("ls_name"))
util.create_file(ls_path, size)
res_path = str(tmpdir.join("res_name"))
util.create_file(res_path, size)
sanlock.write_lockspace(b"ls_name", ls_path, offset=offset, iotimeout=1)
sanlock.add_lockspace(b"ls_name", 1, ls_path, offset=offset, iotimeout=1)
# Host status is not available until the first renewal.
with pytest.raises(sanlock.SanlockException) as e:
sanlock.get_hosts(b"ls_name", 1)
assert e.value.errno == errno.EAGAIN
time.sleep(1)
host = sanlock.get_hosts(b"ls_name", 1)[0]
assert host["flags"] == sanlock.HOST_LIVE
disks = [(res_path, offset)]
sanlock.write_resource(b"ls_name", b"res_name", disks)
res = sanlock.read_resource(res_path, offset=offset)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 0
}
owners = sanlock.read_resource_owners(b"ls_name", b"res_name", disks)
assert owners == []
fd = sanlock.register()
sanlock.acquire(b"ls_name", b"res_name", disks, slkfd=fd)
res = sanlock.read_resource(res_path, offset=offset)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 1
}
owner = sanlock.read_resource_owners(b"ls_name", b"res_name", disks)[0]
assert owner["host_id"] == 1
assert owner["flags"] == 0
assert owner["generation"] == 1
assert owner["io_timeout"] == 0 # Why 0?
# TODO: check timestamp.
host = sanlock.get_hosts(b"ls_name", 1)[0]
assert host["flags"] == sanlock.HOST_LIVE
assert host["generation"] == owner["generation"]
sanlock.release(b"ls_name", b"res_name", disks, slkfd=fd)
res = sanlock.read_resource(res_path, offset=offset)
assert res == {
"lockspace": b"ls_name",
"resource": b"res_name",
"version": 1
}
owners = sanlock.read_resource_owners(b"ls_name", b"res_name", disks)
assert owners == []
def test_write_resource_invalid_disk(tmpdir, sanlock_daemon, disk):
# Test parsing disks list with invalid content.
disks = [disk]
with pytest.raises(ValueError) as e:
sanlock.write_resource("ls_name", "res_name", disks)
assert repr(disk) in str(e.value)
def test_write_resource_parse_args(no_sanlock_daemon, name):
with raises_sanlock_errno():
sanlock.write_resource(name, "res_name", [("disk_path",0)])
with raises_sanlock_errno():
sanlock.write_resource("ls_name", name, [("disk_path",0)])