def create_adapter(er_partition: ErPartition, options: dict = None):
if options is None:
options = {}
options['store_type'] = er_partition._store_locator._store_type
options['path'] = get_db_path(er_partition)
options['er_partition'] = er_partition
return create_pair_adapter(options=options)
def run_task(self, task: ErTask):
if L.isEnabledFor(logging.TRACE):
L.trace(
f'[RUNTASK] start. task_name={task._name}, inputs={task._inputs}, outputs={task._outputs}, task_id={task._id}'
)
else:
L.debug(
f'[RUNTASK] start. task_name={task._name}, task_id={task._id}')
functors = task._job._functors
result = task
if task._name == 'get':
# TODO:1: move to create_serdes
f = create_functor(functors[0]._body)
with create_adapter(task._inputs[0]) as input_adapter:
L.trace(
f"get: key: {self.functor_serdes.deserialize(f._key)}, path: {input_adapter.path}"
)
value = input_adapter.get(f._key)
result = ErPair(key=f._key, value=value)
elif task._name == 'getAll':
tag = f'{task._id}'
er_pair = create_functor(functors[0]._body)
input_store_head = task._job._inputs[0]
key_serdes = create_serdes(input_store_head._store_locator._serdes)
def generate_broker():
with create_adapter(
task._inputs[0]) as db, db.iteritems() as rb:
limit = None if er_pair._key is None else key_serdes.deserialize(
er_pair._key)
try:
yield from TransferPair.pair_to_bin_batch(rb,
limit=limit)
finally:
TransferService.remove_broker(tag)
TransferService.set_broker(tag, generate_broker())
elif task._name == 'count':
with create_adapter(task._inputs[0]) as input_adapter:
result = ErPair(key=self.functor_serdes.serialize('result'),
value=self.functor_serdes.serialize(
input_adapter.count()))
elif task._name == 'putBatch':
partition = task._outputs[0]
tag = f'{task._id}'
PutBatchTask(tag, partition).run()
elif task._name == 'putAll':
output_partition = task._outputs[0]
tag = f'{task._id}'
L.trace(f'egg_pair putAll: transfer service tag={tag}')
tf = TransferPair(tag)
store_broker_result = tf.store_broker(output_partition,
False).result()
# TODO:2: should wait complete?, command timeout?
elif task._name == 'put':
f = create_functor(functors[0]._body)
with create_adapter(task._inputs[0]) as input_adapter:
value = input_adapter.put(f._key, f._value)
#result = ErPair(key=f._key, value=bytes(value))
elif task._name == 'destroy':
input_store_locator = task._inputs[0]._store_locator
namespace = input_store_locator._namespace
name = input_store_locator._name
store_type = input_store_locator._store_type
L.debug(
f'destroying store_type={store_type}, namespace={namespace}, name={name}'
)
if name == '*':
from eggroll.roll_pair.utils.pair_utils import get_db_path, get_data_dir
target_paths = list()
if store_type == '*':
data_dir = get_data_dir()
store_types = os.listdir(data_dir)
for store_type in store_types:
target_paths.append('/'.join(
[data_dir, store_type, namespace]))
else:
db_path = get_db_path(task._inputs[0])
target_paths.append(db_path[:db_path.rfind('*')])
real_data_dir = os.path.realpath(get_data_dir())
for path in target_paths:
realpath = os.path.realpath(path)
if os.path.exists(path):
if realpath == "/" \
or realpath == real_data_dir \
or not realpath.startswith(real_data_dir):
raise ValueError(
f'trying to delete a dangerous path: {realpath}'
)
else:
shutil.rmtree(path)
else:
options = task._job._options
with create_adapter(task._inputs[0],
options=options) as input_adapter:
input_adapter.destroy(options=options)
elif task._name == 'delete':
f = create_functor(functors[0]._body)
with create_adapter(task._inputs[0]) as input_adapter:
if input_adapter.delete(f._key):
L.trace("delete k success")
elif task._name == 'mapValues':
f = create_functor(functors[0]._body)
def map_values_wrapper(input_iterator, key_serdes, value_serdes,
output_writebatch):
for k_bytes, v_bytes in input_iterator:
v = value_serdes.deserialize(v_bytes)
output_writebatch.put(k_bytes,
value_serdes.serialize(f(v)))
self._run_unary(map_values_wrapper, task)
elif task._name == 'map':
f = create_functor(functors[0]._body)
def map_wrapper(input_iterator, key_serdes, value_serdes,
shuffle_broker):
for k_bytes, v_bytes in input_iterator:
k1, v1 = f(key_serdes.deserialize(k_bytes),
value_serdes.deserialize(v_bytes))
shuffle_broker.put(
(key_serdes.serialize(k1), value_serdes.serialize(v1)))
self._run_unary(map_wrapper, task, shuffle=True)
elif task._name == 'reduce':
seq_op_result = self.aggregate_seq(task=task)
result = ErPair(key=self.functor_serdes.serialize(
task._inputs[0]._id),
value=self.functor_serdes.serialize(seq_op_result))
elif task._name == 'aggregate':
seq_op_result = self.aggregate_seq(task=task)
result = ErPair(key=self.functor_serdes.serialize(
task._inputs[0]._id),
value=self.functor_serdes.serialize(seq_op_result))
elif task._name == 'mapPartitions':
reduce_op = create_functor(functors[1]._body)
shuffle = create_functor(functors[2]._body)
def map_partitions_wrapper(input_iterator, key_serdes,
value_serdes, output_writebatch):
f = create_functor(functors[0]._body)
value = f(generator(key_serdes, value_serdes, input_iterator))
if isinstance(value, Iterable):
for k1, v1 in value:
if shuffle:
output_writebatch.put((key_serdes.serialize(k1),
value_serdes.serialize(v1)))
else:
output_writebatch.put(key_serdes.serialize(k1),
value_serdes.serialize(v1))
else:
key = input_iterator.key()
output_writebatch.put((key, value_serdes.serialize(value)))
self._run_unary(map_partitions_wrapper,
task,
shuffle=shuffle,
reduce_op=reduce_op)
elif task._name == 'collapsePartitions':
def collapse_partitions_wrapper(input_iterator, key_serdes,
value_serdes, output_writebatch):
f = create_functor(functors[0]._body)
value = f(generator(key_serdes, value_serdes, input_iterator))
if input_iterator.last():
key = input_iterator.key()
output_writebatch.put(key, value_serdes.serialize(value))
self._run_unary(collapse_partitions_wrapper, task)
elif task._name == 'flatMap':
shuffle = create_functor(functors[1]._body)
def flat_map_wraaper(input_iterator, key_serdes, value_serdes,
output_writebatch):
f = create_functor(functors[0]._body)
for k1, v1 in input_iterator:
for k2, v2 in f(key_serdes.deserialize(k1),
value_serdes.deserialize(v1)):
if shuffle:
output_writebatch.put((key_serdes.serialize(k2),
value_serdes.serialize(v2)))
else:
output_writebatch.put(key_serdes.serialize(k2),
value_serdes.serialize(v2))
self._run_unary(flat_map_wraaper, task, shuffle=shuffle)
elif task._name == 'glom':
def glom_wrapper(input_iterator, key_serdes, value_serdes,
output_writebatch):
k_tmp = None
v_list = []
for k, v in input_iterator:
v_list.append((key_serdes.deserialize(k),
value_serdes.deserialize(v)))
k_tmp = k
if k_tmp is not None:
output_writebatch.put(k_tmp,
value_serdes.serialize(v_list))
self._run_unary(glom_wrapper, task)
elif task._name == 'sample':
def sample_wrapper(input_iterator, key_serdes, value_serdes,
output_writebatch):
fraction = create_functor(functors[0]._body)
seed = create_functor(functors[1]._body)
input_iterator.first()
random_state = np.random.RandomState(seed)
for k, v in input_iterator:
if random_state.rand() < fraction:
output_writebatch.put(k, v)
self._run_unary(sample_wrapper, task)
elif task._name == 'filter':
def filter_wrapper(input_iterator, key_serdes, value_serdes,
output_writebatch):
f = create_functor(functors[0]._body)
for k, v in input_iterator:
if f(key_serdes.deserialize(k),
value_serdes.deserialize(v)):
output_writebatch.put(k, v)
self._run_unary(filter_wrapper, task)
elif task._name == 'join':
def merge_join_wrapper(left_iterator, left_key_serdes,
left_value_serdes, right_iterator,
right_key_serdes, right_value_serdes,
output_writebatch):
if not left_iterator.adapter.is_sorted(
) or not right_iterator.adapter.is_sorted():
raise RuntimeError(
f"merge join cannot be applied: not both store types support sorting. "
f"left type: {type(left_iterator.adapter)}, is_sorted: {left_iterator.adapter.is_sorted()}; "
f"right type: {type(right_iterator.adapter)}, is_sorted: {right_iterator.adapter.is_sorted()}"
)
f = create_functor(functors[0]._body)
is_same_serdes = left_key_serdes == right_key_serdes
l_iter = iter(left_iterator)
r_iter = iter(right_iterator)
try:
k_left, v_left_bytes = next(l_iter)
k_right_raw, v_right_bytes = next(r_iter)
if is_same_serdes:
k_right = k_right_raw
else:
k_right = left_key_serdes.serialize(
right_key_serdes.deserialize(k_right_raw))
while True:
while k_right < k_left:
k_right_raw, v_right_bytes = next(r_iter)
if is_same_serdes:
k_right = k_right_raw
else:
k_right = left_key_serdes.serialize(
right_key_serdes.deserialize(k_right_raw))
while k_left < k_right:
k_left, v_left_bytes = next(l_iter)
if k_left == k_right:
output_writebatch.put(
k_left,
left_value_serdes.serialize(
f(
left_value_serdes.deserialize(
v_left_bytes),
right_value_serdes.deserialize(
v_right_bytes))))
k_left, v_left_bytes = next(l_iter)
# skips next(r_iter) to avoid duplicate codes for the 3rd time
except StopIteration as e:
return
def hash_join_wrapper(left_iterator, left_key_serdes,
left_value_serdes, right_iterator,
right_key_serdes, right_value_serdes,
output_writebatch):
f = create_functor(functors[0]._body)
is_diff_serdes = type(left_key_serdes) != type(
right_key_serdes)
for k_left, l_v_bytes in left_iterator:
if is_diff_serdes:
k_left = right_key_serdes.serialize(
left_key_serdes.deserialize(k_left))
r_v_bytes = right_iterator.adapter.get(k_left)
if r_v_bytes:
output_writebatch.put(
k_left,
left_value_serdes.serialize(
f(left_value_serdes.deserialize(l_v_bytes),
right_value_serdes.deserialize(r_v_bytes))))
join_type = task._job._options.get('join_type', 'merge')
if join_type == 'merge':
self._run_binary(merge_join_wrapper, task)
else:
self._run_binary(hash_join_wrapper, task)
elif task._name == 'subtractByKey':
def merge_subtract_by_key_wrapper(left_iterator, left_key_serdes,
left_value_serdes,
right_iterator, right_key_serdes,
right_value_serdes,
output_writebatch):
if not left_iterator.adapter.is_sorted(
) or not right_iterator.adapter.is_sorted():
raise RuntimeError(
f"merge subtract_by_key cannot be applied: not both store types support sorting. "
f"left type: {type(left_iterator.adapter)}, is_sorted: {left_iterator.adapter.is_sorted()}; "
f"right type: {type(right_iterator.adapter)}, is_sorted: {right_iterator.adapter.is_sorted()}"
)
is_same_serdes = left_key_serdes == right_key_serdes
l_iter = iter(left_iterator)
r_iter = iter(right_iterator)
is_left_stopped = False
is_equal = False
try:
k_left, v_left = next(l_iter)
except StopIteration:
is_left_stopped = True
k_left = None
v_left = None
try:
k_right_raw, v_right = next(r_iter)
except StopIteration:
is_left_stopped = False
k_right_raw = None
v_right = None
# left is None, output must be None
if k_left is None:
return
try:
if k_left is None:
raise StopIteration()
if k_right_raw is None:
raise StopIteration()
if is_same_serdes:
k_right = k_right_raw
else:
k_right = left_key_serdes.serialize(
right_key_serdes.deserialize(k_right_raw))
while True:
is_left_stopped = False
if k_left < k_right:
output_writebatch.put(k_left, v_left)
k_left, v_left = next(l_iter)
is_left_stopped = True
elif k_left == k_right:
is_equal = True
is_left_stopped = True
k_left, v_left = next(l_iter)
is_left_stopped = False
is_equal = False
k_right_raw, v_right = next(r_iter)
k_right = left_key_serdes.serialize(
right_key_serdes.deserialize(k_right_raw))
else:
k_right_raw, v_right = next(r_iter)
k_right = left_key_serdes.serialize(
right_key_serdes.deserialize(k_right_raw))
is_left_stopped = True
except StopIteration as e:
pass
if not is_left_stopped and not is_equal:
try:
if k_left is not None and v_left is not None:
output_writebatch.put(k_left, v_left)
while True:
k_left, v_left = next(l_iter)
output_writebatch.put(k_left, v_left)
except StopIteration as e:
pass
elif is_left_stopped and not is_equal and k_left is not None:
output_writebatch.put(k_left, v_left)
return
def hash_subtract_by_key_wrapper(left_iterator, left_key_serdes,
left_value_serdes, right_iterator,
right_key_serdes,
right_value_serdes,
output_writebatch):
is_diff_serdes = type(left_key_serdes) != type(
right_key_serdes)
for k_left, v_left in left_iterator:
if is_diff_serdes:
k_left = right_key_serdes.serialize(
left_key_serdes.deserialize(k_left))
v_right = right_iterator.adapter.get(k_left)
if v_right is None:
output_writebatch.put(k_left, v_left)
subtract_by_key_type = task._job._options.get(
'subtract_by_key_type', 'merge')
if subtract_by_key_type == 'merge':
self._run_binary(merge_subtract_by_key_wrapper, task)
else:
self._run_binary(hash_subtract_by_key_wrapper, task)
elif task._name == 'union':
def merge_union_wrapper(left_iterator, left_key_serdes,
left_value_serdes, right_iterator,
right_key_serdes, right_value_serdes,
output_writebatch):
if not left_iterator.adapter.is_sorted(
) or not right_iterator.adapter.is_sorted():
raise RuntimeError(
f"merge union cannot be applied: not both store types support sorting. "
f"left type: {type(left_iterator.adapter)}, is_sorted: {left_iterator.adapter.is_sorted()}; "
f"right type: {type(right_iterator.adapter)}, is_sorted: {right_iterator.adapter.is_sorted()}"
)
f = create_functor(functors[0]._body)
is_same_serdes = left_key_serdes == right_key_serdes
l_iter = iter(left_iterator)
r_iter = iter(right_iterator)
k_left = None
v_left_bytes = None
k_right = None
v_right_bytes = None
none_none = (None, None)
is_left_stopped = False
is_equal = False
try:
k_left, v_left_bytes = next(l_iter, none_none)
k_right_raw, v_right_bytes = next(r_iter, none_none)
if k_left is None and k_right_raw is None:
return
elif k_left is None:
is_left_stopped = True
raise StopIteration()
elif k_right_raw is None:
is_left_stopped = False
raise StopIteration()
if is_same_serdes:
k_right = k_right_raw
else:
k_right = left_key_serdes.serialize(
right_key_serdes.deserialize(k_right_raw))
while True:
is_left_stopped = False
while k_right < k_left:
if is_same_serdes:
output_writebatch.put(k_right, v_right_bytes)
else:
output_writebatch.put(
k_right,
left_value_serdes.serialize(
right_value_serdes.deserialize(
v_right_bytes)))
k_right_raw, v_right_bytes = next(r_iter)
if is_same_serdes:
k_right = k_right_raw
else:
k_right = left_key_serdes.serialize(
right_key_serdes.deserialize(k_right_raw))
is_left_stopped = True
while k_left < k_right:
output_writebatch.put(k_left, v_left_bytes)
k_left, v_left_bytes = next(l_iter)
if k_left == k_right:
is_equal = True
output_writebatch.put(
k_left,
left_value_serdes.serialize(
f(
left_value_serdes.deserialize(
v_left_bytes),
right_value_serdes.deserialize(
v_right_bytes))))
is_left_stopped = True
k_left, v_left_bytes = next(l_iter)
is_left_stopped = False
k_right_raw, v_right_bytes = next(r_iter)
if is_same_serdes:
k_right = k_right_raw
else:
k_right = left_key_serdes.serialize(
right_key_serdes.deserialize(k_right_raw))
is_equal = False
except StopIteration as e:
pass
if not is_left_stopped:
try:
output_writebatch.put(k_left, v_left_bytes)
while True:
k_left, v_left_bytes = next(l_iter)
output_writebatch.put(k_left, v_left_bytes)
except StopIteration as e:
pass
else:
try:
if not is_equal:
if is_same_serdes:
output_writebatch.put(k_right_raw,
v_right_bytes)
else:
output_writebatch.put(
left_key_serdes.serialize(
right_key_serdes.deserialize(
k_right_raw)),
left_value_serdes.serialize(
right_value_serdes.deserialize(
v_right_bytes)))
while True:
k_right_raw, v_right_bytes = next(r_iter)
if is_same_serdes:
output_writebatch.put(k_right_raw,
v_right_bytes)
else:
output_writebatch.put(
left_key_serdes.serialize(
right_key_serdes.deserialize(
k_right_raw)),
left_value_serdes.serialize(
right_value_serdes.deserialize(
v_right_bytes)))
except StopIteration as e:
pass
# end of merge union wrapper
return
def hash_union_wrapper(left_iterator, left_key_serdes,
left_value_serdes, right_iterator,
right_key_serdes, right_value_serdes,
output_writebatch):
f = create_functor(functors[0]._body)
is_diff_serdes = type(left_key_serdes) != type(
right_key_serdes)
for k_left, v_left in left_iterator:
if is_diff_serdes:
k_left = right_key_serdes.serialize(
left_key_serdes.deserialize(k_left))
v_right = right_iterator.adapter.get(k_left)
if v_right is None:
output_writebatch.put(k_left, v_left)
else:
v_final = f(left_value_serdes.deserialize(v_left),
right_value_serdes.deserialize(v_right))
output_writebatch.put(
k_left, left_value_serdes.serialize(v_final))
right_iterator.first()
for k_right, v_right in right_iterator:
if is_diff_serdes:
final_v_bytes = output_writebatch.get(
left_key_serdes.serialize(
right_key_serdes.deserialize(k_right)))
else:
final_v_bytes = output_writebatch.get(k_right)
if final_v_bytes is None:
output_writebatch.put(k_right, v_right)
union_type = task._job._options.get('union_type', 'merge')
if union_type == 'merge':
self._run_binary(merge_union_wrapper, task)
else:
self._run_binary(hash_union_wrapper, task)
elif task._name == 'withStores':
f = create_functor(functors[0]._body)
result = ErPair(key=self.functor_serdes.serialize(
task._inputs[0]._id),
value=self.functor_serdes.serialize(f(task)))
if L.isEnabledFor(logging.TRACE):
L.trace(
f'[RUNTASK] end. task_name={task._name}, inputs={task._inputs}, outputs={task._outputs}, task_id={task._id}'
)
else:
L.debug(
f'[RUNTASK] end. task_name={task._name}, task_id={task._id}')
return result