143 lines
5.2 KiB
Python
143 lines
5.2 KiB
Python
#
|
|
# directory_util.py
|
|
#
|
|
# This source file is part of the FoundationDB open source project
|
|
#
|
|
# Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
#
|
|
|
|
import random
|
|
import struct
|
|
|
|
import fdb
|
|
|
|
from bindingtester import FDB_API_VERSION
|
|
from bindingtester import util
|
|
|
|
from bindingtester.tests import test_util
|
|
from bindingtester.tests.directory_state_tree import DirectoryStateTreeNode
|
|
|
|
fdb.api_version(FDB_API_VERSION)
|
|
|
|
DEFAULT_DIRECTORY_INDEX = 4
|
|
DEFAULT_DIRECTORY_PREFIX = b'default'
|
|
DIRECTORY_ERROR_STRING = b'DIRECTORY_ERROR'
|
|
|
|
def setup_directories(instructions, default_path, random):
|
|
# Clients start with the default directory layer in the directory list
|
|
DirectoryStateTreeNode.reset()
|
|
dir_list = [DirectoryStateTreeNode.get_layer(b'\xfe')]
|
|
|
|
instructions.push_args(0, b'\xfe')
|
|
instructions.append('DIRECTORY_CREATE_SUBSPACE')
|
|
dir_list.append(DirectoryStateTreeNode(False, True))
|
|
|
|
instructions.push_args(0, b'')
|
|
instructions.append('DIRECTORY_CREATE_SUBSPACE')
|
|
dir_list.append(DirectoryStateTreeNode(False, True))
|
|
|
|
instructions.push_args(1, 2, 1)
|
|
instructions.append('DIRECTORY_CREATE_LAYER')
|
|
dir_list.append(DirectoryStateTreeNode.get_layer(b'\xfe'))
|
|
|
|
create_default_directory_subspace(instructions, default_path, random)
|
|
dir_list.append(dir_list[0].add_child((default_path,), DirectoryStateTreeNode(True, True, has_known_prefix=True)))
|
|
DirectoryStateTreeNode.set_default_directory(dir_list[-1])
|
|
|
|
instructions.push_args(DEFAULT_DIRECTORY_INDEX)
|
|
instructions.append('DIRECTORY_SET_ERROR_INDEX')
|
|
|
|
return dir_list
|
|
|
|
|
|
def create_default_directory_subspace(instructions, path, random):
|
|
test_util.blocking_commit(instructions)
|
|
instructions.push_args(3)
|
|
instructions.append('DIRECTORY_CHANGE')
|
|
prefix = random.random_string(16)
|
|
instructions.push_args(1, path, b'', b'%s-%s' % (DEFAULT_DIRECTORY_PREFIX, prefix))
|
|
instructions.append('DIRECTORY_CREATE_DATABASE')
|
|
|
|
instructions.push_args(DEFAULT_DIRECTORY_INDEX)
|
|
instructions.append('DIRECTORY_CHANGE')
|
|
|
|
|
|
def push_instruction_and_record_prefix(instructions, op, op_args, path, dir_index, random, subspace):
|
|
if not op.endswith('_DATABASE'):
|
|
instructions.push_args(1, *test_util.with_length(path))
|
|
instructions.append('DIRECTORY_EXISTS')
|
|
|
|
# This op must leave the stack in the state it is in at this point, with the exception
|
|
# that it may leave an error on the stack
|
|
instructions.push_args(*op_args)
|
|
instructions.append(op)
|
|
|
|
if not op.endswith('_DATABASE'):
|
|
instructions.push_args(dir_index)
|
|
instructions.append('DIRECTORY_CHANGE')
|
|
|
|
instructions.push_args(1, b'', random.random_string(16), b'')
|
|
instructions.append('DIRECTORY_PACK_KEY')
|
|
test_util.to_front(instructions, 3) # move the existence result up to the front of the stack
|
|
|
|
t = util.subspace_to_tuple(subspace)
|
|
instructions.push_args(len(t) + 3, *t)
|
|
|
|
instructions.append('TUPLE_PACK') # subspace[<exists>][<packed_key>][random.random_string(16)] = b''
|
|
instructions.append('SET')
|
|
|
|
instructions.push_args(DEFAULT_DIRECTORY_INDEX)
|
|
instructions.append('DIRECTORY_CHANGE')
|
|
|
|
|
|
def check_for_duplicate_prefixes(db, subspace):
|
|
last_prefix = None
|
|
start_key = subspace[0].range().start
|
|
|
|
duplicates = set()
|
|
count = 0
|
|
while True:
|
|
prefixes = db.get_range(start_key, subspace[0].range().stop, limit=1000)
|
|
if len(prefixes) == 0:
|
|
break
|
|
|
|
start_key = fdb.KeySelector.first_greater_than(prefixes[-1].key)
|
|
|
|
prefixes = [subspace[0].unpack(kv.key)[0] for kv in prefixes]
|
|
prefixes = [p for p in prefixes if not (p.startswith(DEFAULT_DIRECTORY_PREFIX) or p == DIRECTORY_ERROR_STRING)]
|
|
count += len(prefixes)
|
|
|
|
prefixes = [last_prefix] + prefixes
|
|
duplicates.update([p for i, p in enumerate(prefixes[1:]) if p == prefixes[i]])
|
|
last_prefix = prefixes[-1]
|
|
|
|
util.get_logger().info('Checked %d directory prefixes for duplicates' % count)
|
|
return ['The prefix %r was allocated multiple times' % d[:-2] for d in set(duplicates)]
|
|
|
|
|
|
def validate_hca_state(db):
|
|
hca = fdb.Subspace((b'\xfe', b'hca'), b'\xfe')
|
|
counters = hca[0]
|
|
recent = hca[1]
|
|
|
|
last_counter = db.get_range(counters.range().start, counters.range().stop, limit=1, reverse=True)
|
|
[(start, reported_count)] = [(counters.unpack(kv.key)[0], struct.unpack('<q', kv.value)[0]) for kv in last_counter] or [(0, 0)]
|
|
|
|
actual_count = len(db[recent[start]: recent.range().stop])
|
|
if actual_count > reported_count:
|
|
return ['The HCA reports %d prefixes allocated in current window, but it actually allocated %d' % (reported_count, actual_count)]
|
|
|
|
return []
|