def update_params(self, argv):
# type: (list) -> None
""" Constructs a configuration description for the piper worker using
the arguments.
:param argv: arguments from the command line.
:return: None
"""
set_temporary_directory(argv[1], create_tmpdir=False)
if argv[2] == 'true':
context.enable_nesting()
self.nesting = True
self.debug = argv[3] == 'true'
self.tracing = argv[4] == '1'
self.storage_conf = argv[5]
self.stream_backend = argv[6]
self.stream_master_name = argv[7]
self.stream_master_port = argv[8]
self.tasks_x_node = int(argv[9])
in_pipes = argv[10:10 + self.tasks_x_node]
out_pipes = argv[10 + self.tasks_x_node:-2]
if self.debug:
assert self.tasks_x_node == len(in_pipes)
assert self.tasks_x_node == len(out_pipes)
self.pipes = []
for i in range(0, self.tasks_x_node):
self.pipes.append(Pipe(in_pipes[i], out_pipes[i]))
self.control_pipe = Pipe(argv[-2], argv[-1])
def update_params(self, argv):
"""
Constructs a configuration description for the piper worker using the
arguments
:param argv: arguments from the command line
"""
self.debug = argv[1] == 'true'
self.tracing = argv[2] == 'true'
self.storage_conf = argv[3]
self.stream_backend = argv[4]
self.stream_master_name = argv[5]
self.stream_master_port = argv[6]
self.tasks_x_node = int(argv[7])
in_pipes = argv[8:8 + self.tasks_x_node]
out_pipes = argv[8 + self.tasks_x_node:-2]
if self.debug:
assert self.tasks_x_node == len(in_pipes)
assert self.tasks_x_node == len(out_pipes)
self.pipes = []
for i in range(0, self.tasks_x_node):
self.pipes.append(Pipe(in_pipes[i], out_pipes[i]))
self.control_pipe = Pipe(argv[-2], argv[-1])
def compss_persistent_worker(config):
# type: (PiperWorkerConfiguration) -> None
""" Persistent worker main function.
Retrieves the initial configuration and spawns the worker processes.
:param config: Piper Worker Configuration description.
:return: None
"""
global CACHE
global CACHE_PROCESS
# Catch SIGTERM sent by bindings_piper
signal.signal(signal.SIGTERM, shutdown_handler)
# Set the binding in worker mode
context.set_pycompss_context(context.WORKER)
persistent_storage = (config.storage_conf != 'null')
logger, logger_cfg, storage_loggers, log_dir = load_loggers(config.debug, persistent_storage)
if __debug__:
logger.debug(HEADER + "piper_worker.py wake up")
config.print_on_logger(logger)
if persistent_storage:
# Initialize storage
logger.debug(HEADER + "Starting persistent storage")
with event_worker(INIT_STORAGE_AT_WORKER_EVENT):
from storage.api import initWorker as initStorageAtWorker # noqa
initStorageAtWorker(config_file_path=config.storage_conf)
# Create new processes
queues = []
cache_profiler = False
if config.cache_profiler.lower() == 'true':
cache_profiler = True
# Setup cache
if is_cache_enabled(str(config.cache)):
# Deploy the necessary processes
CACHE = True
cache_params = start_cache(logger, str(config.cache), cache_profiler, log_dir)
else:
# No cache
CACHE = False
cache_params = (None, None, None, None) # type: ignore
smm, CACHE_PROCESS, cache_queue, cache_ids = cache_params
# Create new executor processes
conf = ExecutorConf(config.debug,
get_temporary_directory(),
TRACING,
config.storage_conf,
logger,
logger_cfg,
persistent_storage,
storage_loggers,
config.stream_backend,
config.stream_master_name,
config.stream_master_port,
cache_ids,
cache_queue,
cache_profiler)
for i in range(0, config.tasks_x_node):
if __debug__:
logger.debug(HEADER + "Launching process " + str(i))
process_name = "".join(("Process-", str(i)))
pid, queue = create_executor_process(process_name, conf, config.pipes[i])
queues.append(queue)
# Read command from control pipe
alive = True
process_counter = config.tasks_x_node
control_pipe = config.control_pipe # type: typing.Any
while alive:
command = control_pipe.read_command(retry_period=1)
if command != "":
line = command.split()
if line[0] == ADD_EXECUTOR_TAG:
process_name = "".join(("Process-", str(process_counter)))
process_counter = process_counter + 1
in_pipe = line[1]
out_pipe = line[2]
pipe = Pipe(in_pipe, out_pipe)
pid, queue = create_executor_process(process_name, conf, pipe)
queues.append(queue)
control_pipe.write(" ".join((ADDED_EXECUTOR_TAG,
out_pipe,
in_pipe,
str(pid))))
elif line[0] == QUERY_EXECUTOR_ID_TAG:
in_pipe = line[1]
out_pipe = line[2]
proc = PROCESSES.get(in_pipe) # type: typing.Any
pid = proc.pid
control_pipe.write(" ".join((REPLY_EXECUTOR_ID_TAG,
out_pipe,
in_pipe,
str(pid))))
elif line[0] == CANCEL_TASK_TAG:
in_pipe = line[1]
cancel_proc = PROCESSES.get(in_pipe) # type: typing.Any
cancel_pid = cancel_proc.pid
if __debug__:
logger.debug(HEADER + "Signaling process with PID " +
str(cancel_pid) + " to cancel a task")
os.kill(cancel_pid, signal.SIGUSR2) # NOSONAR cancellation produced by COMPSs
elif line[0] == REMOVE_EXECUTOR_TAG:
in_pipe = line[1]
out_pipe = line[2]
proc = PROCESSES.pop(in_pipe, None)
if proc:
if proc.is_alive():
logger.warn(HEADER + "Forcing terminate on : " +
proc.name)
proc.terminate()
proc.join()
control_pipe.write(" ".join((REMOVED_EXECUTOR_TAG,
out_pipe,
in_pipe)))
elif line[0] == PING_TAG:
control_pipe.write(PONG_TAG)
elif line[0] == QUIT_TAG:
alive = False
# Wait for all threads
for proc in PROCESSES.values():
proc.join()
# Check if there is any exception message from the threads
for i in range(0, config.tasks_x_node):
if not queues[i].empty:
logger.error(HEADER + "Exception in threads queue: " +
str(queues[i].get()))
for queue in queues:
queue.close()
queue.join_thread()
if CACHE:
stop_cache(smm, cache_queue, cache_profiler, CACHE_PROCESS) # noqa
if persistent_storage:
# Finish storage
if __debug__:
logger.debug(HEADER + "Stopping persistent storage")
with event_worker(FINISH_STORAGE_AT_WORKER_EVENT):
from storage.api import finishWorker as finishStorageAtWorker # noqa
finishStorageAtWorker()
if __debug__:
logger.debug(HEADER + "Finished")
control_pipe.write(QUIT_TAG)
control_pipe.close()
def compss_persistent_worker(config):
"""
Persistent worker main function.
Retrieves the initial configuration and spawns the worker processes.
:param config: Piper Worker Configuration description
:return: None
"""
# Catch SIGTERM sent by bindings_piper
signal.signal(signal.SIGTERM, shutdown_handler)
# Set the binding in worker mode
context.set_pycompss_context(context.WORKER)
if TRACING:
try:
user_paths = os.environ['PYTHONPATH']
except KeyError:
user_paths = ""
print("PYTHON PATH = " + user_paths)
import pyextrae.multiprocessing as pyextrae
pyextrae.eventandcounters(SYNC_EVENTS, 1)
pyextrae.eventandcounters(TASK_EVENTS, WORKER_RUNNING_EVENT)
persistent_storage = (config.storage_conf != 'null')
logger, storage_loggers = load_loggers(config.debug, persistent_storage)
if __debug__:
logger.debug(HEADER + "piper_worker.py wake up")
config.print_on_logger(logger)
if persistent_storage:
# Initialize storage
logger.debug(HEADER + "Starting persitent storage")
from storage.api import initWorker as initStorageAtWorker
initStorageAtWorker(config_file_path=config.storage_conf)
# Create new threads
queues = []
for i in range(0, config.tasks_x_node):
if __debug__:
logger.debug(HEADER + "Launching process " + str(i))
process_name = 'Process-' + str(i)
queue = Queue()
queues.append(queue)
conf = ExecutorConf(TRACING,
config.storage_conf,
logger,
storage_loggers,
config.stream_backend,
config.stream_master_name,
config.stream_master_port)
process = Process(target=executor, args=(queue,
process_name,
config.pipes[i],
conf))
PROCESSES[config.pipes[i].input_pipe] = process
process.start()
# Read command from control pipe
alive = True
process_counter = config.tasks_x_node
control_pipe = config.control_pipe
while alive:
command = control_pipe.read_command(retry_period=1)
if command != "":
line = command.split()
if line[0] == ADD_EXECUTOR_TAG:
process_name = 'Process-' + str(process_counter)
process_counter = process_counter + 1
in_pipe = line[1]
out_pipe = line[2]
pipe = Pipe(in_pipe, out_pipe)
pid = create_threads(process_name, pipe)
control_pipe.write(ADDED_EXECUTOR_TAG + " " +
out_pipe + " " +
in_pipe + " " +
str(pid))
elif line[0] == QUERY_EXECUTOR_ID_TAG:
in_pipe = line[1]
out_pipe = line[2]
proc = PROCESSES.get(in_pipe)
pid = proc.pid
control_pipe.write(REPLY_EXECUTOR_ID_TAG + " " +
out_pipe + " " +
in_pipe + " " +
str(pid))
elif line[0] == CANCEL_TASK_TAG:
in_pipe = line[1]
proc = PROCESSES.get(in_pipe)
pid = proc.pid
logger.debug("[PYTHON WORKER] Signaling process with PID " + str(pid) + " to cancel a task")
kill(pid, signal.SIGUSR2)
elif line[0] == REMOVE_EXECUTOR_TAG:
in_pipe = line[1]
out_pipe = line[2]
proc = PROCESSES.pop(in_pipe, None)
if proc:
if proc.is_alive():
logger.warn(HEADER + "Forcing terminate on : " +
proc.name)
proc.terminate()
proc.join()
control_pipe.write(REMOVED_EXECUTOR_TAG + " " +
out_pipe + " " +
in_pipe)
elif line[0] == PING_TAG:
control_pipe.write(PONG_TAG)
elif line[0] == QUIT_TAG:
alive = False
# Wait for all threads
for proc in PROCESSES.values():
proc.join()
# Check if there is any exception message from the threads
for i in range(0, config.tasks_x_node):
if not queues[i].empty:
logger.error(HEADER + "Exception in threads queue: " +
str(queues[i].get()))
for queue in queues:
queue.close()
queue.join_thread()
if persistent_storage:
# Finish storage
logger.debug(HEADER + "Stopping persistent storage")
from storage.api import finishWorker as finishStorageAtWorker
finishStorageAtWorker()
if __debug__:
logger.debug(HEADER + "Finished")
if TRACING:
pyextrae.eventandcounters(TASK_EVENTS, 0)
pyextrae.eventandcounters(SYNC_EVENTS, 0)
control_pipe.write(QUIT_TAG)
control_pipe.close()