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task.py
2103 lines (1784 loc) · 83.3 KB
/
task.py
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import time
import logger
import random
import string
import copy
import json
import re
import math
import crc32
from httplib import IncompleteRead
from threading import Thread
from memcacheConstants import ERR_NOT_FOUND
from membase.api.rest_client import RestConnection, Bucket
from membase.api.exception import BucketCreationException
from membase.helper.bucket_helper import BucketOperationHelper
from memcached.helper.data_helper import KVStoreAwareSmartClient, VBucketAwareMemcached, MemcachedClientHelper
from couchbase.document import DesignDocument, View
from mc_bin_client import MemcachedError
from tasks.future import Future
from couchbase.stats_tools import StatsCommon
from membase.api.exception import DesignDocCreationException, QueryViewException, ReadDocumentException, RebalanceFailedException, \
GetBucketInfoFailed, CompactViewFailed, SetViewInfoNotFound, FailoverFailedException, ServerUnavailableException, BucketFlushFailed
from couchbase.documentgenerator import BatchedDocumentGenerator
#TODO: Setup stacktracer
#TODO: Needs "easy_install pygments"
#import stacktracer
#stacktracer.trace_start("trace.html",interval=30,auto=True) # Set auto flag to always update file!
PENDING = 'PENDING'
EXECUTING = 'EXECUTING'
CHECKING = 'CHECKING'
FINISHED = 'FINISHED'
class Task(Future):
def __init__(self, name):
Future.__init__(self)
self.log = logger.Logger.get_logger()
self.state = PENDING
self.name = name
self.cancelled = False
self.retries = 0
self.res = None
def step(self, task_manager):
if not self.done():
if self.state == PENDING:
self.state = EXECUTING
task_manager.schedule(self)
elif self.state == EXECUTING:
self.execute(task_manager)
elif self.state == CHECKING:
self.check(task_manager)
elif self.state != FINISHED:
raise Exception("Bad State in {0}: {1}".format(self.name, self.state))
def execute(self, task_manager):
raise NotImplementedError
def check(self, task_manager):
raise NotImplementedError
class NodeInitializeTask(Task):
def __init__(self, server, disabled_consistent_view=None,
rebalanceIndexWaitingDisabled=None,
rebalanceIndexPausingDisabled=None,
maxParallelIndexers=None,
maxParallelReplicaIndexers=None):
Task.__init__(self, "node_init_task")
self.server = server
self.quota = 0
self.disable_consistent_view = disabled_consistent_view
self.rebalanceIndexWaitingDisabled = rebalanceIndexWaitingDisabled
self.rebalanceIndexPausingDisabled = rebalanceIndexPausingDisabled
self.maxParallelIndexers = maxParallelIndexers
self.maxParallelReplicaIndexers = maxParallelReplicaIndexers
def execute(self, task_manager):
try:
rest = RestConnection(self.server)
except ServerUnavailableException as error:
self.state = FINISHED
self.set_exception(error)
return
username = self.server.rest_username
password = self.server.rest_password
if self.disable_consistent_view is None:
rest.set_reb_cons_view(self.disable_consistent_view)
if self.disable_consistent_view is None:
rest.set_reb_index_waiting(self.rebalanceIndexWaitingDisabled)
if self.rebalanceIndexPausingDisabled is not None:
rest.set_rebalance_index_pausing(self.rebalanceIndexPausingDisabled)
if self.maxParallelIndexers is not None:
rest.set_max_parallel_indexers(self.maxParallelIndexers)
if self.maxParallelReplicaIndexers is not None:
rest.set_max_parallel_replica_indexers(self.maxParallelReplicaIndexers)
rest.init_cluster(username, password)
info = rest.get_nodes_self()
if info is None:
self.state = FINISHED
self.set_exception(Exception('unable to get information on a server %s, it is available?' % (self.server.ip)))
return
self.quota = int(info.mcdMemoryReserved * 2 / 3)
rest.init_cluster_memoryQuota(username, password, self.quota)
self.state = CHECKING
task_manager.schedule(self)
def check(self, task_manager):
self.state = FINISHED
self.set_result(self.quota)
class BucketCreateTask(Task):
def __init__(self, server, bucket='default', replicas=1, size=0, port=11211,
password=None):
Task.__init__(self, "bucket_create_task")
self.server = server
self.bucket = bucket
self.replicas = replicas
self.port = port
self.size = size
self.password = password
def execute(self, task_manager):
rest = RestConnection(self.server)
if self.size <= 0:
info = rest.get_nodes_self()
self.size = info.memoryQuota * 2 / 3
authType = 'none' if self.password is None else 'sasl'
try:
rest.create_bucket(bucket=self.bucket,
ramQuotaMB=self.size,
replicaNumber=self.replicas,
proxyPort=self.port,
authType=authType,
saslPassword=self.password)
self.state = CHECKING
task_manager.schedule(self)
except BucketCreationException as e:
self.state = FINISHED
self.set_exception(e)
#catch and set all unexpected exceptions
except Exception as e:
self.state = FINISHED
self.log.info("Unexpected Exception Caught")
self.set_exception(e)
def check(self, task_manager):
try:
if BucketOperationHelper.wait_for_memcached(self.server, self.bucket):
self.log.info("bucket '{0}' was created with per node RAM quota: {1}".format(self.bucket, self.size))
self.set_result(True)
self.state = FINISHED
return
else:
self.log.info("vbucket map not ready after try {0}".format(self.retries))
except Exception:
self.log.info("vbucket map not ready after try {0}".format(self.retries))
self.retries = self.retries + 1
task_manager.schedule(self)
class BucketDeleteTask(Task):
def __init__(self, server, bucket="default"):
Task.__init__(self, "bucket_delete_task")
self.server = server
self.bucket = bucket
def execute(self, task_manager):
rest = RestConnection(self.server)
try:
if rest.delete_bucket(self.bucket):
self.state = CHECKING
task_manager.schedule(self)
else:
self.log.info(StatsCommon.get_stats([self.server], self.bucket, "timings"))
self.state = FINISHED
self.set_result(False)
#catch and set all unexpected exceptions
except Exception as e:
self.state = FINISHED
self.log.info("Unexpected Exception Caught")
self.log.info(StatsCommon.get_stats([self.server], self.bucket, "timings"))
self.set_exception(e)
def check(self, task_manager):
rest = RestConnection(self.server)
try:
if BucketOperationHelper.wait_for_bucket_deletion(self.bucket, rest, 200):
self.set_result(True)
else:
self.set_result(False)
self.state = FINISHED
#catch and set all unexpected exceptions
except Exception as e:
self.state = FINISHED
self.log.info("Unexpected Exception Caught")
self.log.info(StatsCommon.get_stats([self.server], self.bucket, "timings"))
self.set_exception(e)
class RebalanceTask(Task):
def __init__(self, servers, to_add=[], to_remove=[], do_stop=False, progress=30):
Task.__init__(self, "rebalance_task")
self.servers = servers
self.to_add = to_add
self.to_remove = to_remove
self.start_time = None
self.rest = RestConnection(self.servers[0])
def execute(self, task_manager):
try:
self.add_nodes(task_manager)
self.start_rebalance(task_manager)
self.state = CHECKING
task_manager.schedule(self)
except Exception as e:
self.state = FINISHED
self.set_exception(e)
def add_nodes(self, task_manager):
master = self.servers[0]
for node in self.to_add:
self.log.info("adding node {0}:{1} to cluster".format(node.ip, node.port))
self.rest.add_node(master.rest_username, master.rest_password,
node.ip, node.port)
def start_rebalance(self, task_manager):
nodes = self.rest.node_statuses()
#Determine whether its a cluster_run/not
cluster_run = True
firstIp = self.servers[0].ip
if len(self.servers) == 1 and self.servers[0].port == '8091':
cluster_run = False
else:
for node in self.servers:
if node.ip != firstIp:
cluster_run = False
break
ejectedNodes = []
for server in self.to_remove:
for node in nodes:
if cluster_run:
if int(server.port) == int(node.port):
ejectedNodes.append(node.id)
else:
if server.ip == node.ip and int(server.port) == int(node.port):
ejectedNodes.append(node.id)
self.rest.rebalance(otpNodes=[node.id for node in nodes], ejectedNodes=ejectedNodes)
self.start_time = time.time()
def check(self, task_manager):
progress = -100
try:
progress = self.rest._rebalance_progress()
except RebalanceFailedException as ex:
self.state = FINISHED
self.set_exception(ex)
#catch and set all unexpected exceptions
except Exception as e:
self.state = FINISHED
self.log.info("Unexpected Exception Caught in {0} sec".
format(time.time() - self.start_time))
self.set_exception(e)
if progress != -1 and progress != 100:
task_manager.schedule(self, 10)
else:
success_cleaned = []
for removed in self.to_remove:
rest = RestConnection(removed)
start = time.time()
while time.time() - start < 10:
try:
if len(rest.get_pools_info()["pools"]) == 0:
success_cleaned.append(removed)
break
else:
time.sleep(0.1)
except IncompleteRead as e:
self.log.error(e)
result = True
for node in set(self.to_remove) - set(success_cleaned):
self.log.error("node {0}:{1} was not cleaned after removing from cluster".format(
node.ip, node.port))
result = False
self.log.info("rebalancing was completed with progress: {0}% in {1} sec".
format(progress, time.time() - self.start_time))
self.state = FINISHED
self.set_result(result)
class StatsWaitTask(Task):
EQUAL = '=='
NOT_EQUAL = '!='
LESS_THAN = '<'
LESS_THAN_EQ = '<='
GREATER_THAN = '>'
GREATER_THAN_EQ = '>='
def __init__(self, servers, bucket, param, stat, comparison, value):
Task.__init__(self, "stats_wait_task")
self.servers = servers
self.bucket = bucket
if isinstance(bucket, Bucket):
self.bucket = bucket.name
self.param = param
self.stat = stat
self.comparison = comparison
self.value = value
self.conns = {}
def execute(self, task_manager):
self.state = CHECKING
task_manager.schedule(self)
def check(self, task_manager):
stat_result = 0
for server in self.servers:
try:
client = self._get_connection(server)
stats = client.stats(self.param)
if not stats.has_key(self.stat):
self.state = FINISHED
self.set_exception(Exception("Stat {0} not found".format(self.stat)))
return
if stats[self.stat].isdigit():
stat_result += long(stats[self.stat])
else:
stat_result = stats[self.stat]
except EOFError as ex:
self.state = FINISHED
self.set_exception(ex)
if not self._compare(self.comparison, str(stat_result), self.value):
self.log.warn("Not Ready: %s %s %s %s expected on %s" % (self.stat, stat_result,
self.comparison, self.value, self._stringify_servers()))
task_manager.schedule(self, 5)
return
self.log.info("Saw %s %s %s %s expected on %s" % (self.stat, stat_result,
self.comparison, self.value, self._stringify_servers()))
for server, conn in self.conns.items():
conn.close()
self.state = FINISHED
self.set_result(True)
def _stringify_servers(self):
return ''.join([`server.ip + ":" + server.port` for server in self.servers])
def _get_connection(self, server):
if not self.conns.has_key(server):
for i in xrange(3):
try:
self.conns[server] = MemcachedClientHelper.direct_client(server, self.bucket)
return self.conns[server]
except EOFError:
self.log.error("failed to create direct client, retry in 1 sec")
time.sleep(1)
self.conns[server] = MemcachedClientHelper.direct_client(server, self.bucket)
return self.conns[server]
def _compare(self, cmp_type, a, b):
if isinstance(b, (int, long)) and a.isdigit():
a = long(a)
elif isinstance(b, (int, long)) and not a.isdigit():
return False
if (cmp_type == StatsWaitTask.EQUAL and a == b) or\
(cmp_type == StatsWaitTask.NOT_EQUAL and a != b) or\
(cmp_type == StatsWaitTask.LESS_THAN_EQ and a <= b) or\
(cmp_type == StatsWaitTask.GREATER_THAN_EQ and a >= b) or\
(cmp_type == StatsWaitTask.LESS_THAN and a < b) or\
(cmp_type == StatsWaitTask.GREATER_THAN and a > b):
return True
return False
class GenericLoadingTask(Thread, Task):
def __init__(self, server, bucket, kv_store):
Thread.__init__(self)
Task.__init__(self, "load_gen_task")
self.kv_store = kv_store
self.client = VBucketAwareMemcached(RestConnection(server), bucket)
def execute(self, task_manager):
self.start()
self.state = EXECUTING
def check(self, task_manager):
pass
def run(self):
while self.has_next() and not self.done():
self.next()
self.state = FINISHED
self.set_result(True)
def has_next(self):
raise NotImplementedError
def next(self):
raise NotImplementedError
def _unlocked_create(self, partition, key, value):
try:
value_json = json.loads(value)
value_json['mutated'] = 0
value = json.dumps(value_json)
except ValueError:
index = random.choice(range(len(value)))
value = value[0:index] + random.choice(string.ascii_uppercase) + value[index + 1:]
try:
self.client.set(key, self.exp, self.flag, value)
if self.only_store_hash:
value = str(crc32.crc32_hash(value))
partition.set(key, value, self.exp, self.flag)
except Exception as error:
self.state = FINISHED
self.set_exception(error)
def _unlocked_read(self, partition, key):
try:
o, c, d = self.client.get(key)
except MemcachedError as error:
if error.status == ERR_NOT_FOUND and partition.get_valid(key) is None:
pass
else:
self.state = FINISHED
self.set_exception(error)
def _unlocked_update(self, partition, key):
try:
o, c, value = self.client.get(key)
if value is None:
return
value_json = json.loads(value)
value_json['mutated'] += 1
value = json.dumps(value_json)
except MemcachedError as error:
if error.status == ERR_NOT_FOUND and partition.get_valid(key) is None:
#there is no such item, we do not know what value to set
return
else:
self.state = FINISHED
self.set_exception(error)
return
except ValueError:
index = random.choice(range(len(value)))
value = value[0:index] + random.choice(string.ascii_uppercase) + value[index + 1:]
try:
self.client.set(key, self.exp, self.flag, value)
if self.only_store_hash:
value = str(crc32.crc32_hash(value))
partition.set(key, value, self.exp, self.flag)
except Exception as error:
self.state = FINISHED
self.set_exception(error)
def _unlocked_delete(self, partition, key):
try:
self.client.delete(key)
partition.delete(key)
except MemcachedError as error:
if error.status == ERR_NOT_FOUND and partition.get_valid(key) is None:
pass
else:
self.state = FINISHED
self.set_exception(error)
class LoadDocumentsTask(GenericLoadingTask):
def __init__(self, server, bucket, generator, kv_store, op_type, exp, flag=0, only_store_hash=True):
GenericLoadingTask.__init__(self, server, bucket, kv_store)
self.generator = generator
self.op_type = op_type
self.exp = exp
self.flag = flag
self.only_store_hash = only_store_hash
def has_next(self):
return self.generator.has_next()
def next(self):
key, value = self.generator.next()
partition = self.kv_store.acquire_partition(key)
if self.op_type == 'create':
self._unlocked_create(partition, key, value)
elif self.op_type == 'read':
self._unlocked_read(partition, key)
elif self.op_type == 'update':
self._unlocked_update(partition, key)
elif self.op_type == 'delete':
self._unlocked_delete(partition, key)
else:
self.state = FINISHED
self.set_exception(Exception("Bad operation type: %s" % self.op_type))
self.kv_store.release_partition(key)
class BatchedLoadDocumentsTask(GenericLoadingTask):
def __init__(self, server, bucket, generator, kv_store, op_type, exp, flag=0, only_store_hash=True, batch_size=100, pause_secs=1, timeout_secs=30):
GenericLoadingTask.__init__(self, server, bucket, kv_store)
self.batch_generator = BatchedDocumentGenerator(generator, batch_size)
self.op_type = op_type
self.exp = exp
self.flag = flag
self.only_store_hash = only_store_hash
self.batch_size = batch_size
self.pause = pause_secs
self.timeout = timeout_secs
def has_next(self):
has = self.batch_generator.has_next()
if math.fmod(self.batch_generator._doc_gen.itr, 50000) == 0.0 or not has:
self.log.info("Batch {0} documents done #: {1}".\
format(self.op_type, self.batch_generator._doc_gen.itr))
return has
def next(self):
key_value = self.batch_generator.next_batch()
partition_keys_dic = self.kv_store.acquire_partitions(key_value.keys())
if self.op_type == 'create':
self._create_batch(partition_keys_dic, key_value)
elif self.op_type == 'update':
self._update_batch(partition_keys_dic, key_value)
elif self.op_type == 'delete':
self._delete_batch(partition_keys_dic, key_value)
elif self.op_type == 'read':
self._read_batch(partition_keys_dic, key_value)
else:
self.state = FINISHED
self.set_exception(Exception("Bad operation type: %s" % self.op_type))
self.kv_store.release_partitions(partition_keys_dic.keys())
def _create_batch(self, partition_keys_dic, key_val):
try:
self._process_values_for_create(key_val)
self.client.setMulti(self.exp, self.flag, key_val, self.pause, self.timeout, parallel=False)
self._populate_kvstore(partition_keys_dic, key_val)
except MemcachedError as error:
self.state = FINISHED
self.set_exception(error)
def _update_batch(self, partition_keys_dic, key_val):
try:
self._process_values_for_update(partition_keys_dic, key_val)
self.client.setMulti(self.exp, self.flag, key_val, self.pause, self.timeout, parallel=False)
self._populate_kvstore(partition_keys_dic, key_val)
except MemcachedError as error:
self.state = FINISHED
self.set_exception(error)
def _delete_batch(self, partition_keys_dic, key_val):
for partition, keys in partition_keys_dic.items():
for key in keys:
try:
self.client.delete(key)
partition.delete(key)
except MemcachedError as error:
if error.status == ERR_NOT_FOUND and partition.get_valid(key) is None:
pass
else:
self.state = FINISHED
self.set_exception(error)
return
def _read_batch(self, partition_keys_dic, key_val):
try:
o, c, d = self.client.getMulti(key_val.keys(), self.pause, self.timeout)
except MemcachedError as error:
self.state = FINISHED
self.set_exception(error)
def _process_values_for_create(self, key_val):
for key, value in key_val.items():
try:
value_json = json.loads(value)
value_json['mutated'] = 0
value = json.dumps(value_json)
except ValueError:
index = random.choice(range(len(value)))
value = value[0:index] + random.choice(string.ascii_uppercase) + value[index + 1:]
finally:
key_val[key] = value
def _process_values_for_update(self, partition_keys_dic, key_val):
for partition, keys in partition_keys_dic.items():
for key in keys:
value = partition.get_valid(key)
if value is None:
del key_val[key]
continue
try:
value = key_val[key] # new updated value, however it is not their in orginal code "LoadDocumentsTask"
value_json = json.loads(value)
value_json['mutated'] += 1
value = json.dumps(value_json)
except ValueError:
index = random.choice(range(len(value)))
value = value[0:index] + random.choice(string.ascii_uppercase) + value[index + 1:]
finally:
key_val[key] = value
def _populate_kvstore(self, partition_keys_dic, key_val):
for partition, keys in partition_keys_dic.items():
self._populate_kvstore_partition(partition, keys, key_val)
def _release_locks_on_kvstore(self):
for part in self._partitions_keyvals_dic.keys:
self.kv_store.release_lock(part)
def _populate_kvstore_partition(self, partition, keys, key_val):
for key in keys:
if self.only_store_hash:
key_val[key] = str(crc32.crc32_hash(key_val[key]))
partition.set(key, key_val[key], self.exp, self.flag)
class WorkloadTask(GenericLoadingTask):
def __init__(self, server, bucket, kv_store, num_ops, create, read, update, delete, exp):
GenericLoadingTask.__init__(self, server, bucket, kv_store)
self.itr = 0
self.num_ops = num_ops
self.create = create
self.read = create + read
self.update = create + read + update
self.delete = create + read + update + delete
self.exp = exp
def has_next(self):
if self.num_ops == 0 or self.itr < self.num_ops:
return True
return False
def next(self):
self.itr += 1
rand = random.randint(1, self.delete)
if rand > 0 and rand <= self.create:
self._create_random_key()
elif rand > self.create and rand <= self.read:
self._get_random_key()
elif rand > self.read and rand <= self.update:
self._update_random_key()
elif rand > self.update and rand <= self.delete:
self._delete_random_key()
def _get_random_key(self):
partition, part_num = self.kv_store.acquire_random_partition()
if partition is None:
return
key = partition.get_random_valid_key()
if key is None:
self.kv_store.release_partition(part_num)
return
self._unlocked_read(partition, key)
self.kv_store.release_partition(part_num)
def _create_random_key(self):
partition, part_num = self.kv_store.acquire_random_partition(False)
if partition is None:
return
key = partition.get_random_deleted_key()
if key is None:
self.kv_store.release_partition(part_num)
return
value = partition.get_deleted(key)
if value is None:
self.kv_store.release_partition(part_num)
return
self._unlocked_create(partition, key, value)
self.kv_store.release_partition(part_num)
def _update_random_key(self):
partition, part_num = self.kv_store.acquire_random_partition()
if partition is None:
return
key = partition.get_random_valid_key()
if key is None:
self.kv_store.release_partition(part_num)
return
self._unlocked_update(partition, key)
self.kv_store.release_partition(part_num)
def _delete_random_key(self):
partition, part_num = self.kv_store.acquire_random_partition()
if partition is None:
return
key = partition.get_random_valid_key()
if key is None:
self.kv_store.release_partition(part_num)
return
self._unlocked_delete(partition, key)
self.kv_store.release_partition(part_num)
class ValidateDataTask(GenericLoadingTask):
def __init__(self, server, bucket, kv_store, max_verify=None, only_store_hash=True):
GenericLoadingTask.__init__(self, server, bucket, kv_store)
self.valid_keys, self.deleted_keys = kv_store.key_set()
self.num_valid_keys = len(self.valid_keys)
self.num_deleted_keys = len(self.deleted_keys)
self.itr = 0
self.max_verify = self.num_valid_keys + self.num_deleted_keys
self.only_store_hash = only_store_hash
if max_verify is not None:
self.max_verify = min(max_verify, self.max_verify)
self.log.info("%s items will be verified on %s bucket" % (self.max_verify, bucket))
self.start_time = time.time()
def has_next(self):
if self.itr < (self.num_valid_keys + self.num_deleted_keys) and\
self.itr < self.max_verify:
if not self.itr % 50000:
self.log.info("{0} items were verified".format(self.itr))
return True
self.log.info("{0} items were verified in {1} sec.the average number of ops\
- {2} per second ".format(self.itr, time.time() - self.start_time,
self.itr / (time.time() - self.start_time)).rstrip())
return False
def next(self):
if self.itr < self.num_valid_keys:
self._check_valid_key(self.valid_keys[self.itr])
else:
self._check_deleted_key(self.deleted_keys[self.itr - self.num_valid_keys])
self.itr += 1
def _check_valid_key(self, key):
partition = self.kv_store.acquire_partition(key)
value = partition.get_valid(key)
flag = partition.get_flag(key)
if value is None or flag is None:
self.kv_store.release_partition(key)
return
try:
o, c, d = self.client.get(key)
if self.only_store_hash:
if crc32.crc32_hash(d) != int(value):
self.state = FINISHED
self.set_exception(Exception('Bad hash result: %d != %d' % (crc32.crc32_hash(d), int(value))))
else:
value = json.dumps(value)
if d != json.loads(value):
self.state = FINISHED
self.set_exception(Exception('Bad result: %s != %s' % (json.dumps(d), value)))
if o != flag:
self.state = FINISHED
self.set_exception(Exception('Bad result for flag value: %s != the value we set: %s' % (o, flag)))
except MemcachedError as error:
if error.status == ERR_NOT_FOUND and partition.get_valid(key) is None:
pass
else:
self.state = FINISHED
self.set_exception(error)
self.kv_store.release_partition(key)
def _check_deleted_key(self, key):
partition = self.kv_store.acquire_partition(key)
try:
o, c, d = self.client.delete(key)
if partition.get_valid(key) is not None:
self.state = FINISHED
self.set_exception(Exception('Not Deletes: %s' % (key)))
except MemcachedError as error:
if error.status == ERR_NOT_FOUND:
pass
else:
self.state = FINISHED
self.set_exception(error)
self.kv_store.release_partition(key)
class BatchedValidateDataTask(GenericLoadingTask):
def __init__(self, server, bucket, kv_store, max_verify=None, only_store_hash=True, batch_size=100):
GenericLoadingTask.__init__(self, server, bucket, kv_store)
self.valid_keys, self.deleted_keys = kv_store.key_set()
self.num_valid_keys = len(self.valid_keys)
self.num_deleted_keys = len(self.deleted_keys)
self.itr = 0
self.max_verify = self.num_valid_keys + self.num_deleted_keys
self.only_store_hash = only_store_hash
if max_verify is not None:
self.max_verify = min(max_verify, self.max_verify)
self.log.info("%s items will be verified on %s bucket" % (self.max_verify, bucket))
self.batch_size = batch_size
self.start_time = time.time()
def has_next(self):
has = False
if self.itr < (self.num_valid_keys + self.num_deleted_keys) and self.itr < self.max_verify:
has = True
if math.fmod(self.itr, 10000) == 0.0:
self.log.info("{0} items were verified".format(self.itr))
if not has:
self.log.info("{0} items were verified in {1} sec.the average number of ops\
- {2} per second".format(self.itr, time.time() - self.start_time,
self.itr / (time.time() - self.start_time)).rstrip())
return has
def next(self):
if self.itr < self.num_valid_keys:
keys_batch = self.valid_keys[self.itr:self.itr + self.batch_size]
self.itr += len(keys_batch)
self._check_valid_keys(keys_batch)
else:
self._check_deleted_key(self.deleted_keys[self.itr - self.num_valid_keys])
self.itr += 1
def _check_valid_keys(self, keys):
partition_keys_dic = self.kv_store.acquire_partitions(keys)
key_vals = self.client.getMulti(keys, parallel=True)
for partition, keys in partition_keys_dic.items():
self._check_validity(partition, keys, key_vals)
self.kv_store.release_partitions(partition_keys_dic.keys())
def _check_validity(self, partition, keys, key_vals):
for key in keys:
value = partition.get_valid(key)
flag = partition.get_flag(key)
if value is None:
continue
try:
o, c, d = key_vals[key]
if self.only_store_hash:
if crc32.crc32_hash(d) != int(value):
self.state = FINISHED
self.set_exception(Exception('Bad hash result: %d != %d' % (crc32.crc32_hash(d), int(value))))
else:
value = json.dumps(value)
if d != json.loads(value):
self.state = FINISHED
self.set_exception(Exception('Bad result: %s != %s' % (json.dumps(d), value)))
if o != flag:
self.state = FINISHED
self.set_exception(Exception('Bad result for flag value: %s != the value we set: %s' % (o, flag)))
except KeyError as error:
self.state = FINISHED
self.set_exception(error)
def _check_deleted_key(self, key):
partition = self.kv_store.acquire_partition(key)
try:
o, c, d = self.client.delete(key)
if partition.get_valid(key) is not None:
self.state = FINISHED
self.set_exception(Exception('Not Deletes: %s' % (key)))
except MemcachedError as error:
if error.status == ERR_NOT_FOUND:
pass
else:
self.state = FINISHED
self.set_exception(error)
self.kv_store.release_partition(key)
class VerifyRevIdTask(GenericLoadingTask):
def __init__(self, src_server, dest_server, bucket, kv_store, ops_perf):
GenericLoadingTask.__init__(self, src_server, bucket, kv_store)
self.client_dest = VBucketAwareMemcached(RestConnection(dest_server), bucket)
self.valid_keys, self.deleted_keys = kv_store.key_set()
self.num_valid_keys = len(self.valid_keys)
self.num_deleted_keys = len(self.deleted_keys)
self.itr = 0
self.err_count = 0
self.ops_perf = ops_perf
def has_next(self):
if self.ops_perf in ["delete", "update"] :
if self.itr < (self.num_valid_keys + self.num_deleted_keys):
return True
self.log.info("Verification done, {0} items have been "
"verified ({1}d items: {2})".format(
self.itr, self.ops_perf, self.num_deleted_keys))
return False
def next(self):
if self.ops_perf in ["delete", "update"]:
if self.itr < self.num_valid_keys:
self._check_key_revId(self.valid_keys[self.itr])
elif self.itr < (self.num_valid_keys + self.num_deleted_keys):
# verify deleted/expired keys
self._check_key_revId(self.deleted_keys[self.itr - self.num_valid_keys])
self.itr += 1
## show progress of verification for every 50k items
if math.fmod(self.itr, 50000) == 0.0:
self.log.info("{0} items have been verified".format(self.itr))
def _check_key_revId(self, key):
try:
src = self.client.memcached(key)
dest = self.client_dest.memcached(key)
_, flags_src, exp_src, seqno_src, cas_src = src.getMeta(key)
_, flags_dest, exp_dest, seqno_dest, cas_dest = dest.getMeta(key)
## seqno number should never be zero
if seqno_src == 0:
self.err_count += 1
self.log.error(
"(Source) Sequence numbers for key {0}\t is 0, Error Count{1}".format(key, self.err_count))
self.log.error(
"Source (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_src, cas_src, exp_src, flags_src))
self.state = FINISHED
if seqno_dest == 0:
self.err_count += 1
self.log.error(
"(Dest) Sequence numbers for key {0}\t is 0, Error Count{1}".format(key, self.err_count))
self.log.error(
"Dest (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_dest, cas_dest, exp_dest, flags_dest))
self.state = FINISHED
## verify all metadata
if seqno_src != seqno_dest:
self.err_count += 1
self.log.error(
"Mismatch on sequence numbers for key {0}\t Source Sequence Num:{1}\t Destination Sequence Num:{2}\tError Count{3}".format(
key, seqno_src, seqno_dest, self.err_count))
self.log.error(
"Source (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_src, cas_src, exp_src, flags_src))
self.log.error(
"Dest (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_dest, cas_dest, exp_dest, flags_dest))
self.state = FINISHED
elif cas_src != cas_dest:
self.err_count += 1
self.log.error(
"Mismatch on CAS for key {0}\t Source CAS:{1}\t Destination CAS:{2}\tError Count{3}".format(key,
cas_src,
cas_dest, self.err_count))
self.log.error(
"Source (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_src, cas_src, exp_src, flags_src))
self.log.error(
"Dest (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_dest, cas_dest, exp_dest, flags_dest))
self.state = FINISHED
elif exp_src != exp_dest:
self.err_count += 1
self.log.error(
"Mismatch on Expiry Flags for key {0}\t Source Expiry Flags:{1}\t Destination Expiry Flags:{2}\tError Count{3}".format(
key,
exp_src, exp_dest, self.err_count))
self.log.error(
"Source (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_src, cas_src, exp_src, flags_src))
self.log.error(
"Dest (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_dest, cas_dest, exp_dest, flags_dest))
self.state = FINISHED
elif flags_src != flags_dest:
self.err_count += 1
self.log.error(
"Mismatch on Flags for key {0}\t Source Flags:{1}\t Destination Flags:{2}\tError Count{3}".format(
key,
flags_src, flags_dest, self.err_count))
self.log.error(
"Source (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_src, cas_src, exp_src, flags_src))
self.log.error(
"Dest (Seqno: {0}, CAS: {1}, Exp: {2}, Flag: {3})".format(seqno_dest, cas_dest, exp_dest, flags_dest))
self.state = FINISHED
except MemcachedError as error:
if error.status == ERR_NOT_FOUND:
pass
else:
self.state = FINISHED
self.set_exception(error)