def generate(self, args, thread_number):
instructions = InstructionSet()
op_choices = ['NEW_TRANSACTION', 'COMMIT']
reads = [
'GET', 'GET_KEY', 'GET_RANGE', 'GET_RANGE_STARTS_WITH',
'GET_RANGE_SELECTOR'
]
mutations = [
'SET', 'CLEAR', 'CLEAR_RANGE', 'CLEAR_RANGE_STARTS_WITH',
'ATOMIC_OP'
]
snapshot_reads = [x + '_SNAPSHOT' for x in reads]
database_reads = [x + '_DATABASE' for x in reads]
database_mutations = [x + '_DATABASE' for x in mutations]
mutations += ['VERSIONSTAMP']
versions = [
'GET_READ_VERSION', 'SET_READ_VERSION', 'GET_COMMITTED_VERSION'
]
snapshot_versions = ['GET_READ_VERSION_SNAPSHOT']
tuples = [
'TUPLE_PACK', 'TUPLE_UNPACK', 'TUPLE_RANGE', 'TUPLE_SORT', 'SUB',
'ENCODE_FLOAT', 'ENCODE_DOUBLE', 'DECODE_DOUBLE', 'DECODE_FLOAT'
]
if 'versionstamp' in args.types:
tuples.append('TUPLE_PACK_WITH_VERSIONSTAMP')
resets = ['ON_ERROR', 'RESET', 'CANCEL']
read_conflicts = ['READ_CONFLICT_RANGE', 'READ_CONFLICT_KEY']
write_conflicts = [
'WRITE_CONFLICT_RANGE', 'WRITE_CONFLICT_KEY',
'DISABLE_WRITE_CONFLICT'
]
txn_sizes = ['GET_APPROXIMATE_SIZE']
op_choices += reads
op_choices += mutations
op_choices += snapshot_reads
op_choices += database_reads
op_choices += database_mutations
op_choices += versions
op_choices += snapshot_versions
op_choices += tuples
op_choices += read_conflicts
op_choices += write_conflicts
op_choices += resets
op_choices += txn_sizes
idempotent_atomic_ops = [
'BIT_AND', 'BIT_OR', 'MAX', 'MIN', 'BYTE_MIN', 'BYTE_MAX'
]
atomic_ops = idempotent_atomic_ops + [
'ADD', 'BIT_XOR', 'APPEND_IF_FITS'
]
if args.concurrency > 1:
self.max_keys = random.randint(100, 1000)
else:
self.max_keys = random.randint(100, 10000)
instructions.append('NEW_TRANSACTION')
instructions.append('GET_READ_VERSION')
self.preload_database(instructions, self.max_keys)
instructions.setup_complete()
for i in range(args.num_ops):
op = random.choice(op_choices)
index = len(instructions)
read_performed = False
# print 'Adding instruction %s at %d' % (op, index)
if args.concurrency == 1 and (op in database_mutations):
self.wait_for_reads(instructions)
test_util.blocking_commit(instructions)
self.can_get_commit_version = False
self.add_stack_items(1)
if op in resets or op == 'NEW_TRANSACTION':
if args.concurrency == 1:
self.wait_for_reads(instructions)
self.outstanding_ops = []
if op == 'NEW_TRANSACTION':
instructions.append(op)
self.can_get_commit_version = True
self.can_set_version = True
self.can_use_key_selectors = True
elif op == 'ON_ERROR':
instructions.push_args(random.randint(0, 5000))
instructions.append(op)
self.outstanding_ops.append(
(self.stack_size, len(instructions) - 1))
if args.concurrency == 1:
self.wait_for_reads(instructions)
instructions.append('NEW_TRANSACTION')
self.can_get_commit_version = True
self.can_set_version = True
self.can_use_key_selectors = True
self.add_strings(1)
elif op == 'GET' or op == 'GET_SNAPSHOT' or op == 'GET_DATABASE':
self.ensure_key(instructions, 1)
instructions.append(op)
self.add_strings(1)
self.can_set_version = False
read_performed = True
elif op == 'GET_KEY' or op == 'GET_KEY_SNAPSHOT' or op == 'GET_KEY_DATABASE':
if op.endswith('_DATABASE') or self.can_use_key_selectors:
self.ensure_key(instructions, 1)
instructions.push_args(self.workspace.key())
instructions.push_args(
*self.random.random_selector_params())
test_util.to_front(instructions, 3)
instructions.append(op)
# Don't add key here because we may be outside of our prefix
self.add_strings(1)
self.can_set_version = False
read_performed = True
elif op == 'GET_RANGE' or op == 'GET_RANGE_SNAPSHOT' or op == 'GET_RANGE_DATABASE':
self.ensure_key(instructions, 2)
range_params = self.random.random_range_params()
instructions.push_args(*range_params)
test_util.to_front(instructions, 4)
test_util.to_front(instructions, 4)
instructions.append(op)
if range_params[0] >= 1 and range_params[
0] <= 1000: # avoid adding a string if the limit is large
self.add_strings(1)
else:
self.add_stack_items(1)
self.can_set_version = False
read_performed = True
elif op == 'GET_RANGE_STARTS_WITH' or op == 'GET_RANGE_STARTS_WITH_SNAPSHOT' or op == 'GET_RANGE_STARTS_WITH_DATABASE':
# TODO: not tested well
self.ensure_key(instructions, 1)
range_params = self.random.random_range_params()
instructions.push_args(*range_params)
test_util.to_front(instructions, 3)
instructions.append(op)
if range_params[0] >= 1 and range_params[
0] <= 1000: # avoid adding a string if the limit is large
self.add_strings(1)
else:
self.add_stack_items(1)
self.can_set_version = False
read_performed = True
elif op == 'GET_RANGE_SELECTOR' or op == 'GET_RANGE_SELECTOR_SNAPSHOT' or op == 'GET_RANGE_SELECTOR_DATABASE':
if op.endswith('_DATABASE') or self.can_use_key_selectors:
self.ensure_key(instructions, 2)
instructions.push_args(self.workspace.key())
range_params = self.random.random_range_params()
instructions.push_args(*range_params)
instructions.push_args(
*self.random.random_selector_params())
test_util.to_front(instructions, 6)
instructions.push_args(
*self.random.random_selector_params())
test_util.to_front(instructions, 9)
instructions.append(op)
if range_params[0] >= 1 and range_params[
0] <= 1000: # avoid adding a string if the limit is large
self.add_strings(1)
else:
self.add_stack_items(1)
self.can_set_version = False
read_performed = True
elif op == 'GET_READ_VERSION' or op == 'GET_READ_VERSION_SNAPSHOT':
instructions.append(op)
self.has_version = self.can_set_version
self.add_strings(1)
elif op == 'SET' or op == 'SET_DATABASE':
self.ensure_key_value(instructions)
instructions.append(op)
if op == 'SET_DATABASE':
self.add_stack_items(1)
elif op == 'SET_READ_VERSION':
if self.has_version and self.can_set_version:
instructions.append(op)
self.can_set_version = False
elif op == 'CLEAR' or op == 'CLEAR_DATABASE':
self.ensure_key(instructions, 1)
instructions.append(op)
if op == 'CLEAR_DATABASE':
self.add_stack_items(1)
elif op == 'CLEAR_RANGE' or op == 'CLEAR_RANGE_DATABASE':
# Protect against inverted range
key1 = self.workspace.pack(self.random.random_tuple(5))
key2 = self.workspace.pack(self.random.random_tuple(5))
if key1 > key2:
key1, key2 = key2, key1
instructions.push_args(key1, key2)
instructions.append(op)
if op == 'CLEAR_RANGE_DATABASE':
self.add_stack_items(1)
elif op == 'CLEAR_RANGE_STARTS_WITH' or op == 'CLEAR_RANGE_STARTS_WITH_DATABASE':
self.ensure_key(instructions, 1)
instructions.append(op)
if op == 'CLEAR_RANGE_STARTS_WITH_DATABASE':
self.add_stack_items(1)
elif op == 'ATOMIC_OP' or op == 'ATOMIC_OP_DATABASE':
self.ensure_key_value(instructions)
if op == 'ATOMIC_OP' or args.concurrency > 1:
instructions.push_args(random.choice(atomic_ops))
else:
instructions.push_args(
random.choice(idempotent_atomic_ops))
instructions.append(op)
if op == 'ATOMIC_OP_DATABASE':
self.add_stack_items(1)
elif op == 'VERSIONSTAMP':
rand_str1 = self.random.random_string(100)
key1 = self.versionstamped_values.pack((rand_str1, ))
key2 = self.versionstamped_values_2.pack((rand_str1, ))
split = random.randint(0, 70)
prefix = self.random.random_string(20 + split)
if prefix.endswith(b'\xff'):
# Necessary to make sure that the SET_VERSIONSTAMPED_VALUE check
# correctly finds where the version is supposed to fit in.
prefix += b'\x00'
suffix = self.random.random_string(70 - split)
rand_str2 = prefix + fdb.tuple.Versionstamp._UNSET_TR_VERSION + suffix
key3 = self.versionstamped_keys.pack() + rand_str2
index = len(self.versionstamped_keys.pack()) + len(prefix)
key3 = self.versionstamp_key(key3, index)
instructions.push_args(
'SET_VERSIONSTAMPED_VALUE', key1,
self.versionstamp_value(
fdb.tuple.Versionstamp._UNSET_TR_VERSION + rand_str2))
instructions.append('ATOMIC_OP')
if args.api_version >= 520:
instructions.push_args(
'SET_VERSIONSTAMPED_VALUE', key2,
self.versionstamp_value(rand_str2, len(prefix)))
instructions.append('ATOMIC_OP')
instructions.push_args('SET_VERSIONSTAMPED_KEY', key3,
rand_str1)
instructions.append('ATOMIC_OP')
self.can_use_key_selectors = False
elif op == 'READ_CONFLICT_RANGE' or op == 'WRITE_CONFLICT_RANGE':
self.ensure_key(instructions, 2)
instructions.append(op)
self.add_strings(1)
elif op == 'READ_CONFLICT_KEY' or op == 'WRITE_CONFLICT_KEY':
self.ensure_key(instructions, 1)
instructions.append(op)
self.add_strings(1)
elif op == 'DISABLE_WRITE_CONFLICT':
instructions.append(op)
elif op == 'COMMIT':
if args.concurrency == 1 or i < self.max_keys or random.random(
) < 0.9:
if args.concurrency == 1:
self.wait_for_reads(instructions)
test_util.blocking_commit(instructions)
self.can_get_commit_version = False
self.add_stack_items(1)
self.can_set_version = True
self.can_use_key_selectors = True
else:
instructions.append(op)
self.add_strings(1)
elif op == 'RESET':
instructions.append(op)
self.can_get_commit_version = False
self.can_set_version = True
self.can_use_key_selectors = True
elif op == 'CANCEL':
instructions.append(op)
self.can_set_version = False
elif op == 'GET_COMMITTED_VERSION':
if self.can_get_commit_version:
do_commit = random.random() < 0.5
if do_commit:
instructions.append('COMMIT')
instructions.append('WAIT_FUTURE')
self.add_stack_items(1)
instructions.append(op)
self.has_version = True
self.add_strings(1)
if do_commit:
instructions.append('RESET')
self.can_get_commit_version = False
self.can_set_version = True
self.can_use_key_selectors = True
elif op == 'GET_APPROXIMATE_SIZE':
instructions.append(op)
self.add_strings(1)
elif op == 'TUPLE_PACK' or op == 'TUPLE_RANGE':
tup = self.random.random_tuple(10)
instructions.push_args(len(tup), *tup)
instructions.append(op)
if op == 'TUPLE_PACK':
self.add_strings(1)
else:
self.add_strings(2)
elif op == 'TUPLE_PACK_WITH_VERSIONSTAMP':
tup = (self.random.random_string(20),
) + self.random.random_tuple(
10, incomplete_versionstamps=True)
prefix = self.versionstamped_keys.pack()
instructions.push_args(prefix, len(tup), *tup)
instructions.append(op)
self.add_strings(1)
versionstamp_param = prefix + fdb.tuple.pack(tup)
first_incomplete = versionstamp_param.find(
fdb.tuple.Versionstamp._UNSET_TR_VERSION)
second_incomplete = -1 if first_incomplete < 0 else \
versionstamp_param.find(fdb.tuple.Versionstamp._UNSET_TR_VERSION, first_incomplete + len(fdb.tuple.Versionstamp._UNSET_TR_VERSION) + 1)
# If there is exactly one incomplete versionstamp, perform the versionstamp operation.
if first_incomplete >= 0 and second_incomplete < 0:
rand_str = self.random.random_string(100)
instructions.push_args(rand_str)
test_util.to_front(instructions, 1)
instructions.push_args('SET_VERSIONSTAMPED_KEY')
instructions.append('ATOMIC_OP')
if self.api_version >= 520:
version_value_key_2 = self.versionstamped_values_2.pack(
(rand_str, ))
versionstamped_value = self.versionstamp_value(
fdb.tuple.pack(tup),
first_incomplete - len(prefix))
instructions.push_args('SET_VERSIONSTAMPED_VALUE',
version_value_key_2,
versionstamped_value)
instructions.append('ATOMIC_OP')
version_value_key = self.versionstamped_values.pack(
(rand_str, ))
instructions.push_args(
'SET_VERSIONSTAMPED_VALUE', version_value_key,
self.versionstamp_value(
fdb.tuple.Versionstamp._UNSET_TR_VERSION +
fdb.tuple.pack(tup)))
instructions.append('ATOMIC_OP')
self.can_use_key_selectors = False
elif op == 'TUPLE_UNPACK':
tup = self.random.random_tuple(10)
instructions.push_args(len(tup), *tup)
instructions.append('TUPLE_PACK')
instructions.append(op)
self.add_strings(len(tup))
elif op == 'TUPLE_SORT':
tups = self.random.random_tuple_list(10, 30)
for tup in tups:
instructions.push_args(len(tup), *tup)
instructions.append('TUPLE_PACK')
instructions.push_args(len(tups))
instructions.append(op)
self.add_strings(len(tups))
# Use SUB to test if integers are correctly unpacked
elif op == 'SUB':
a = self.random.random_int() // 2
b = self.random.random_int() // 2
instructions.push_args(0, a, b)
instructions.append(op)
instructions.push_args(1)
instructions.append('SWAP')
instructions.append(op)
instructions.push_args(1)
instructions.append('TUPLE_PACK')
self.add_stack_items(1)
elif op == 'ENCODE_FLOAT':
f = self.random.random_float(8)
f_bytes = struct.pack('>f', f)
instructions.push_args(f_bytes)
instructions.append(op)
self.add_stack_items(1)
elif op == 'ENCODE_DOUBLE':
d = self.random.random_float(11)
d_bytes = struct.pack('>d', d)
instructions.push_args(d_bytes)
instructions.append(op)
self.add_stack_items(1)
elif op == 'DECODE_FLOAT':
f = self.random.random_float(8)
instructions.push_args(fdb.tuple.SingleFloat(f))
instructions.append(op)
self.add_strings(1)
elif op == 'DECODE_DOUBLE':
d = self.random.random_float(11)
instructions.push_args(d)
instructions.append(op)
self.add_strings(1)
else:
assert False, 'Unknown operation: ' + op
if read_performed and op not in database_reads:
self.outstanding_ops.append(
(self.stack_size, len(instructions) - 1))
if args.concurrency == 1 and (op in database_reads
or op in database_mutations):
instructions.append('WAIT_FUTURE')
instructions.begin_finalization()
if args.concurrency == 1:
self.wait_for_reads(instructions)
test_util.blocking_commit(instructions)
self.add_stack_items(1)
instructions.append('NEW_TRANSACTION')
instructions.push_args(self.stack_subspace.key())
instructions.append('LOG_STACK')
test_util.blocking_commit(instructions)
return instructions
def generate(self, args, thread_number):
instructions = InstructionSet()
op_choices = ['NEW_TRANSACTION', 'COMMIT']
general = ['DIRECTORY_CREATE_SUBSPACE', 'DIRECTORY_CREATE_LAYER']
op_choices += general
directory_mutations = ['DIRECTORY_CREATE_OR_OPEN', 'DIRECTORY_CREATE', 'DIRECTORY_MOVE', 'DIRECTORY_MOVE_TO',
'DIRECTORY_REMOVE', 'DIRECTORY_REMOVE_IF_EXISTS']
directory_reads = ['DIRECTORY_EXISTS', 'DIRECTORY_OPEN', 'DIRECTORY_LIST']
directory_db_mutations = [x + '_DATABASE' for x in directory_mutations]
directory_db_reads = [x + '_DATABASE' for x in directory_reads]
directory_snapshot_reads = [x + '_SNAPSHOT' for x in directory_reads]
directory = []
directory += directory_mutations
directory += directory_reads
directory += directory_db_mutations
directory += directory_db_reads
if not args.no_directory_snapshot_ops:
directory += directory_snapshot_reads
subspace = ['DIRECTORY_PACK_KEY', 'DIRECTORY_UNPACK_KEY', 'DIRECTORY_RANGE', 'DIRECTORY_CONTAINS', 'DIRECTORY_OPEN_SUBSPACE']
instructions.append('NEW_TRANSACTION')
default_path = 'default%d' % self.next_path
self.next_path += 1
self.dir_list = directory_util.setup_directories(instructions, default_path, self.random)
self.root = self.dir_list[0]
instructions.push_args(0)
instructions.append('DIRECTORY_CHANGE')
# Generate some directories that we are going to create in advance. This tests that other bindings
# are compatible with the Python implementation
self.prepopulated_dirs = [(generate_path(min_length=1), self.generate_layer()) for i in range(5)]
for path, layer in self.prepopulated_dirs:
instructions.push_args(layer)
instructions.push_args(*test_util.with_length(path))
instructions.append('DIRECTORY_OPEN')
self.dir_list.append(self.root.add_child(path, DirectoryStateTreeNode(True, True, has_known_prefix=False, is_partition=(layer==b'partition'))))
# print('%d. Selected %s, dir=%s, dir_id=%s, has_known_prefix=%s, dir_list_len=%d' \
# % (len(instructions), 'DIRECTORY_OPEN', repr(self.dir_index), self.dir_list[-1].dir_id, False, len(self.dir_list)-1))
instructions.setup_complete()
for i in range(args.num_ops):
if random.random() < 0.5:
while True:
self.dir_index = random.randrange(0, len(self.dir_list))
if not self.dir_list[self.dir_index].state.is_partition or not self.dir_list[self.dir_index].state.deleted:
break
instructions.push_args(self.dir_index)
instructions.append('DIRECTORY_CHANGE')
dir_entry = self.dir_list[self.dir_index]
choices = op_choices[:]
if dir_entry.state.is_directory:
choices += directory
if dir_entry.state.is_subspace:
choices += subspace
op = random.choice(choices)
# print('%d. Selected %s, dir=%d, dir_id=%d, has_known_prefix=%d, dir_list_len=%d' \
# % (len(instructions), op, self.dir_index, dir_entry.dir_id, dir_entry.state.has_known_prefix, len(self.dir_list)))
if op.endswith('_DATABASE') or op.endswith('_SNAPSHOT'):
root_op = op[0:-9]
else:
root_op = op
if root_op == 'NEW_TRANSACTION':
instructions.append(op)
elif root_op == 'COMMIT':
test_util.blocking_commit(instructions)
elif root_op == 'DIRECTORY_CREATE_SUBSPACE':
path = generate_path()
instructions.push_args(generate_prefix(require_unique=False, is_partition=True))
instructions.push_args(*test_util.with_length(path))
instructions.append(op)
self.dir_list.append(DirectoryStateTreeNode(False, True, has_known_prefix=True))
elif root_op == 'DIRECTORY_CREATE_LAYER':
indices = []
prefixes = [generate_prefix(require_unique=args.concurrency==1, is_partition=True) for i in range(2)]
for i in range(2):
instructions.push_args(prefixes[i])
instructions.push_args(*test_util.with_length(generate_path()))
instructions.append('DIRECTORY_CREATE_SUBSPACE')
indices.append(len(self.dir_list))
self.dir_list.append(DirectoryStateTreeNode(False, True, has_known_prefix=True))
instructions.push_args(random.choice([0, 1]))
instructions.push_args(*indices)
instructions.append(op)
self.dir_list.append(DirectoryStateTreeNode.get_layer(prefixes[0]))
elif root_op == 'DIRECTORY_CREATE_OR_OPEN':
# Because allocated prefixes are non-deterministic, we cannot have overlapping
# transactions that allocate/remove these prefixes in a comparison test
if op.endswith('_DATABASE') and args.concurrency == 1:
test_util.blocking_commit(instructions)
path = generate_path()
# Partitions that use the high-contention allocator can result in non-determinism if they fail to commit,
# so we disallow them in comparison tests
op_args = test_util.with_length(path) + (self.generate_layer(allow_partition=args.concurrency>1),)
directory_util.push_instruction_and_record_prefix(instructions, op, op_args, path, len(self.dir_list), self.random, self.prefix_log)
if not op.endswith('_DATABASE') and args.concurrency == 1:
test_util.blocking_commit(instructions)
child_entry = dir_entry.get_descendent(path)
if child_entry is None:
child_entry = DirectoryStateTreeNode(True, True)
child_entry.state.has_known_prefix = False
self.dir_list.append(dir_entry.add_child(path, child_entry))
elif root_op == 'DIRECTORY_CREATE':
layer = self.generate_layer()
is_partition = layer == b'partition'
prefix = generate_prefix(require_unique=is_partition and args.concurrency==1, is_partition=is_partition, min_length=0)
# Because allocated prefixes are non-deterministic, we cannot have overlapping
# transactions that allocate/remove these prefixes in a comparison test
if op.endswith('_DATABASE') and args.concurrency == 1: # and allow_empty_prefix:
test_util.blocking_commit(instructions)
path = generate_path()
op_args = test_util.with_length(path) + (layer, prefix)
if prefix is None:
directory_util.push_instruction_and_record_prefix(
instructions, op, op_args, path, len(self.dir_list), self.random, self.prefix_log)
else:
instructions.push_args(*op_args)
instructions.append(op)
if not op.endswith('_DATABASE') and args.concurrency == 1: # and allow_empty_prefix:
test_util.blocking_commit(instructions)
child_entry = dir_entry.get_descendent(path)
if child_entry is None:
child_entry = DirectoryStateTreeNode(True, True, has_known_prefix=bool(prefix))
elif not bool(prefix):
child_entry.state.has_known_prefix = False
if is_partition:
child_entry.state.is_partition = True
self.dir_list.append(dir_entry.add_child(path, child_entry))
elif root_op == 'DIRECTORY_OPEN':
path = generate_path()
instructions.push_args(self.generate_layer())
instructions.push_args(*test_util.with_length(path))
instructions.append(op)
child_entry = dir_entry.get_descendent(path)
if child_entry is None:
self.dir_list.append(DirectoryStateTreeNode(False, False, has_known_prefix=False))
else:
self.dir_list.append(dir_entry.add_child(path, child_entry))
elif root_op == 'DIRECTORY_MOVE':
old_path = generate_path()
new_path = generate_path()
instructions.push_args(*(test_util.with_length(old_path) + test_util.with_length(new_path)))
instructions.append(op)
child_entry = dir_entry.get_descendent(old_path)
if child_entry is None:
self.dir_list.append(DirectoryStateTreeNode(False, False, has_known_prefix=False))
else:
self.dir_list.append(dir_entry.add_child(new_path, child_entry))
# Make sure that the default directory subspace still exists after moving the specified directory
if dir_entry.state.is_directory and not dir_entry.state.is_subspace and old_path == ('',):
self.ensure_default_directory_subspace(instructions, default_path)
elif root_op == 'DIRECTORY_MOVE_TO':
new_path = generate_path()
instructions.push_args(*test_util.with_length(new_path))
instructions.append(op)
child_entry = dir_entry.get_descendent(())
if child_entry is None:
self.dir_list.append(DirectoryStateTreeNode(False, False, has_known_prefix=False))
else:
self.dir_list.append(dir_entry.add_child(new_path, child_entry))
# Make sure that the default directory subspace still exists after moving the current directory
self.ensure_default_directory_subspace(instructions, default_path)
elif root_op == 'DIRECTORY_REMOVE' or root_op == 'DIRECTORY_REMOVE_IF_EXISTS':
# Because allocated prefixes are non-deterministic, we cannot have overlapping
# transactions that allocate/remove these prefixes in a comparison test
if op.endswith('_DATABASE') and args.concurrency == 1:
test_util.blocking_commit(instructions)
path = ()
count = random.randint(0, 1)
if count == 1:
path = generate_path()
instructions.push_args(*test_util.with_length(path))
instructions.push_args(count)
instructions.append(op)
dir_entry.delete(path)
# Make sure that the default directory subspace still exists after removing the specified directory
if path == () or (dir_entry.state.is_directory and not dir_entry.state.is_subspace and path == ('',)):
self.ensure_default_directory_subspace(instructions, default_path)
elif root_op == 'DIRECTORY_LIST' or root_op == 'DIRECTORY_EXISTS':
path = ()
count = random.randint(0, 1)
if count == 1:
path = generate_path()
instructions.push_args(*test_util.with_length(path))
instructions.push_args(count)
instructions.append(op)
elif root_op == 'DIRECTORY_PACK_KEY':
t = self.random.random_tuple(5)
instructions.push_args(*test_util.with_length(t))
instructions.append(op)
instructions.append('DIRECTORY_STRIP_PREFIX')
elif root_op == 'DIRECTORY_UNPACK_KEY' or root_op == 'DIRECTORY_CONTAINS':
if not dir_entry.state.has_known_prefix or random.random() < 0.2 or root_op == 'DIRECTORY_UNPACK_KEY':
t = self.random.random_tuple(5)
instructions.push_args(*test_util.with_length(t))
instructions.append('DIRECTORY_PACK_KEY')
instructions.append(op)
else:
instructions.push_args(fdb.tuple.pack(self.random.random_tuple(5)))
instructions.append(op)
elif root_op == 'DIRECTORY_RANGE' or root_op == 'DIRECTORY_OPEN_SUBSPACE':
t = self.random.random_tuple(5)
instructions.push_args(*test_util.with_length(t))
instructions.append(op)
if root_op == 'DIRECTORY_OPEN_SUBSPACE':
self.dir_list.append(DirectoryStateTreeNode(False, True, dir_entry.state.has_known_prefix))
else:
test_util.to_front(instructions, 1)
instructions.append('DIRECTORY_STRIP_PREFIX')
test_util.to_front(instructions, 1)
instructions.append('DIRECTORY_STRIP_PREFIX')
instructions.begin_finalization()
test_util.blocking_commit(instructions)
instructions.append('NEW_TRANSACTION')
for i, dir_entry in enumerate(self.dir_list):
instructions.push_args(i)
instructions.append('DIRECTORY_CHANGE')
if dir_entry.state.is_directory:
instructions.push_args(self.directory_log.key())
instructions.append('DIRECTORY_LOG_DIRECTORY')
if dir_entry.state.has_known_prefix and dir_entry.state.is_subspace:
# print('%d. Logging subspace: %d' % (i, dir_entry.dir_id))
instructions.push_args(self.subspace_log.key())
instructions.append('DIRECTORY_LOG_SUBSPACE')
if (i + 1) % 100 == 0:
test_util.blocking_commit(instructions)
test_util.blocking_commit(instructions)
instructions.push_args(self.stack_subspace.key())
instructions.append('LOG_STACK')
test_util.blocking_commit(instructions)
return instructions
def generate(self, args, thread_number):
instructions = InstructionSet()
op_choices = ['NEW_TRANSACTION', 'COMMIT']
general = ['DIRECTORY_CREATE_SUBSPACE', 'DIRECTORY_CREATE_LAYER']
op_choices += general
directory_mutations = ['DIRECTORY_CREATE_OR_OPEN', 'DIRECTORY_CREATE', 'DIRECTORY_MOVE', 'DIRECTORY_MOVE_TO',
'DIRECTORY_REMOVE', 'DIRECTORY_REMOVE_IF_EXISTS']
directory_reads = ['DIRECTORY_EXISTS', 'DIRECTORY_OPEN', 'DIRECTORY_LIST']
directory_db_mutations = [x + '_DATABASE' for x in directory_mutations]
directory_db_reads = [x + '_DATABASE' for x in directory_reads]
directory_snapshot_reads = [x + '_SNAPSHOT' for x in directory_reads]
directory = []
directory += directory_mutations
directory += directory_reads
directory += directory_db_mutations
directory += directory_db_reads
if not args.no_directory_snapshot_ops:
directory += directory_snapshot_reads
subspace = ['DIRECTORY_PACK_KEY', 'DIRECTORY_UNPACK_KEY', 'DIRECTORY_RANGE', 'DIRECTORY_CONTAINS', 'DIRECTORY_OPEN_SUBSPACE']
instructions.append('NEW_TRANSACTION')
default_path = unicode('default%d' % self.next_path)
self.next_path += 1
self.dir_list = directory_util.setup_directories(instructions, default_path, self.random)
self.root = self.dir_list[0]
instructions.push_args(0)
instructions.append('DIRECTORY_CHANGE')
# Generate some directories that we are going to create in advance. This tests that other bindings
# are compatible with the Python implementation
self.prepopulated_dirs = [(generate_path(min_length=1), self.generate_layer()) for i in range(5)]
for path, layer in self.prepopulated_dirs:
instructions.push_args(layer)
instructions.push_args(*test_util.with_length(path))
instructions.append('DIRECTORY_OPEN')
# print '%d. Selected %s, dir=%s, has_known_prefix=%s, dir_list_len=%d' \
# % (len(instructions), 'DIRECTORY_OPEN', repr(self.dir_index), False, len(self.dir_list))
self.dir_list.append(self.dir_list[0].add_child(path, default_path, self.root, DirListEntry(True, True, has_known_prefix=False)))
instructions.setup_complete()
for i in range(args.num_ops):
if random.random() < 0.5:
self.dir_index = random.randrange(0, len(self.dir_list))
instructions.push_args(self.dir_index)
instructions.append('DIRECTORY_CHANGE')
choices = op_choices[:]
if self.dir_list[self.dir_index].is_directory:
choices += directory
if self.dir_list[self.dir_index].is_subspace:
choices += subspace
op = random.choice(choices)
dir_entry = self.dir_list[self.dir_index]
# print '%d. Selected %s, dir=%s, has_known_prefix=%s, dir_list_len=%d' \
# % (len(instructions), op, repr(self.dir_index), repr(dir_entry.has_known_prefix), len(self.dir_list))
if op.endswith('_DATABASE') or op.endswith('_SNAPSHOT'):
root_op = op[0:-9]
else:
root_op = op
if root_op == 'NEW_TRANSACTION':
instructions.append(op)
elif root_op == 'COMMIT':
test_util.blocking_commit(instructions)
elif root_op == 'DIRECTORY_CREATE_SUBSPACE':
path = generate_path()
instructions.push_args(generate_prefix(allow_empty=False, is_partition=True))
instructions.push_args(*test_util.with_length(path))
instructions.append(op)
self.dir_list.append(DirListEntry(False, True))
elif root_op == 'DIRECTORY_CREATE_LAYER':
indices = []
for i in range(2):
instructions.push_args(generate_prefix(allow_empty=False, is_partition=True))
instructions.push_args(*test_util.with_length(generate_path()))
instructions.append('DIRECTORY_CREATE_SUBSPACE')
indices.append(len(self.dir_list))
self.dir_list.append(DirListEntry(False, True))
instructions.push_args(random.choice([0, 1]))
instructions.push_args(*indices)
instructions.append(op)
self.dir_list.append(DirListEntry(True, False, False))
elif root_op == 'DIRECTORY_CREATE_OR_OPEN':
# Because allocated prefixes are non-deterministic, we cannot have overlapping
# transactions that allocate/remove these prefixes in a comparison test
if op.endswith('_DATABASE') and args.concurrency == 1:
test_util.blocking_commit(instructions)
path = generate_path()
op_args = test_util.with_length(path) + (self.generate_layer(),)
directory_util.push_instruction_and_record_prefix(instructions, op, op_args, path, len(self.dir_list), self.random, self.prefix_log)
if not op.endswith('_DATABASE') and args.concurrency == 1:
test_util.blocking_commit(instructions)
self.dir_list.append(dir_entry.add_child(path, default_path, self.root, DirListEntry(True, True, False)))
elif root_op == 'DIRECTORY_CREATE':
layer = self.generate_layer()
is_partition = layer == 'partition'
allow_empty_prefix = random.random() < 0.8
prefix = generate_prefix(allow_empty=allow_empty_prefix, is_partition=is_partition)
# Because allocated prefixes are non-deterministic, we cannot have overlapping
# transactions that allocate/remove these prefixes in a comparison test
if op.endswith('_DATABASE') and args.concurrency == 1: # and allow_empty_prefix:
test_util.blocking_commit(instructions)
path = generate_path()
op_args = test_util.with_length(path) + (layer, prefix)
if prefix is None:
directory_util.push_instruction_and_record_prefix(
instructions, op, op_args, path, len(self.dir_list), self.random, self.prefix_log)
else:
instructions.push_args(*op_args)
instructions.append(op)
if not op.endswith('_DATABASE') and args.concurrency == 1: # and allow_empty_prefix:
test_util.blocking_commit(instructions)
self.dir_list.append(dir_entry.add_child(path, default_path, self.root, DirListEntry(True, True, bool(prefix))))
elif root_op == 'DIRECTORY_OPEN':
path = generate_path()
instructions.push_args(self.generate_layer())
instructions.push_args(*test_util.with_length(path))
instructions.append(op)
self.dir_list.append(dir_entry.add_child(path, default_path, self.root, DirListEntry(True, True)))
elif root_op == 'DIRECTORY_MOVE':
old_path = generate_path()
new_path = generate_path()
instructions.push_args(*(test_util.with_length(old_path) + test_util.with_length(new_path)))
instructions.append(op)
# This could probably be made to sometimes set has_known_prefix to true
self.dir_list.append(dir_entry.add_child(new_path, default_path, self.root, DirListEntry(True, True, False)))
# Make sure that the default directory subspace still exists after moving the specified directory
if dir_entry.is_directory and not dir_entry.is_subspace and old_path == (u'',):
self.ensure_default_directory_subspace(instructions, default_path)
elif root_op == 'DIRECTORY_MOVE_TO':
new_path = generate_path()
instructions.push_args(*test_util.with_length(new_path))
instructions.append(op)
self.dir_list.append(dir_entry.root.add_child(new_path, default_path, self.root,
DirListEntry(True, True, dir_entry.has_known_prefix)))
# Make sure that the default directory subspace still exists after moving the current directory
self.ensure_default_directory_subspace(instructions, default_path)
# FIXME: There is currently a problem with removing partitions. In these generated tests, it's possible
# for a removed partition to resurrect itself and insert keys into the database using its allocated
# prefix. The result is non-deterministic HCA errors.
elif root_op == 'DIRECTORY_REMOVE' or root_op == 'DIRECTORY_REMOVE_IF_EXISTS':
# Because allocated prefixes are non-deterministic, we cannot have overlapping
# transactions that allocate/remove these prefixes in a comparison test
if op.endswith('_DATABASE') and args.concurrency == 1:
test_util.blocking_commit(instructions)
path = ()
count = random.randint(0, 1)
if count == 1:
path = generate_path()
instructions.push_args(*test_util.with_length(path))
instructions.push_args(count)
instructions.append(op)
# Make sure that the default directory subspace still exists after removing the specified directory
if path == () or (dir_entry.is_directory and not dir_entry.is_subspace and path == (u'',)):
self.ensure_default_directory_subspace(instructions, default_path)
elif root_op == 'DIRECTORY_LIST' or root_op == 'DIRECTORY_EXISTS':
path = ()
count = random.randint(0, 1)
if count == 1:
path = generate_path()
instructions.push_args(*test_util.with_length(path))
instructions.push_args(count)
instructions.append(op)
elif root_op == 'DIRECTORY_PACK_KEY':
t = self.random.random_tuple(5)
instructions.push_args(*test_util.with_length(t))
instructions.append(op)
instructions.append('DIRECTORY_STRIP_PREFIX')
elif root_op == 'DIRECTORY_UNPACK_KEY' or root_op == 'DIRECTORY_CONTAINS':
if not dir_entry.has_known_prefix or random.random() < 0.2 or root_op == 'DIRECTORY_UNPACK_KEY':
t = self.random.random_tuple(5)
instructions.push_args(*test_util.with_length(t))
instructions.append('DIRECTORY_PACK_KEY')
instructions.append(op)
else:
instructions.push_args(fdb.tuple.pack(self.random.random_tuple(5)))
instructions.append(op)
elif root_op == 'DIRECTORY_RANGE' or root_op == 'DIRECTORY_OPEN_SUBSPACE':
t = self.random.random_tuple(5)
instructions.push_args(*test_util.with_length(t))
instructions.append(op)
if root_op == 'DIRECTORY_OPEN_SUBSPACE':
self.dir_list.append(DirListEntry(False, True, dir_entry.has_known_prefix))
else:
test_util.to_front(instructions, 1)
instructions.append('DIRECTORY_STRIP_PREFIX')
test_util.to_front(instructions, 1)
instructions.append('DIRECTORY_STRIP_PREFIX')
instructions.begin_finalization()
test_util.blocking_commit(instructions)
instructions.append('NEW_TRANSACTION')
for i, dir_entry in enumerate(self.dir_list):
instructions.push_args(i)
instructions.append('DIRECTORY_CHANGE')
if dir_entry.is_directory:
instructions.push_args(self.directory_log.key())
instructions.append('DIRECTORY_LOG_DIRECTORY')
if dir_entry.has_known_prefix and dir_entry.is_subspace:
# print '%d. Logging subspace: %d' % (i, dir_entry.dir_id)
instructions.push_args(self.subspace_log.key())
instructions.append('DIRECTORY_LOG_SUBSPACE')
if (i + 1) % 100 == 0:
test_util.blocking_commit(instructions)
instructions.push_args(self.stack_subspace.key())
instructions.append('LOG_STACK')
test_util.blocking_commit(instructions)
return instructions