def health_check(ctx):
for pid in list(ctx.apprentices.keys()):
if not ctx.apprentices[pid]['process'].is_running():
ctx.logger.warn('cleaning up stale app %s with pid %d',
ctx.apprentices[pid]['location'].uname, pid)
ctx.master.deregister_app(pyyjj.now_in_nano(),
ctx.apprentices[pid]['location'].uid)
del ctx.apprentices[pid]
def send_to_passive(ctx, sock, location, data):
sock.send(
json.dumps({
'gen_time': pyyjj.now_in_nano(),
'trigger_time': 0,
'msg_type': 10099,
'source': ctx.io_device.home.uid,
'dest': location.uid,
'data': data
}))
def ping(ctx, times, message):
pass_ctx_from_parent(ctx)
pyyjj.setup_log(ctx.name)
io_device = pyyjj.create_io_device_client(ctx.parent.name)
latency = []
for t in range(times):
start = pyyjj.now_in_nano()
request = {'messsage': message} if message else {}
sent_bytes = io_device.publisher.publish(json.dumps(request))
while not io_device.observer.wait():
pass
rsp_data = io_device.observer.get_notice()
end = pyyjj.now_in_nano()
latency.append(end - start)
recv_bytes = len(rsp_data)
print('[{}] {}/{} bytes time={} ns'.format(t + 1, sent_bytes,
recv_bytes, latency[-1]))
click.echo(
'round-trip min/avg/max/stddev = {:.0f}/{:.0f}/{:.0f}/{:.0f} ns'.
format(numpy.min(latency), numpy.mean(latency), numpy.max(latency),
numpy.std(latency)))
def on_exit(self):
pyyjj.master.on_exit(self)
self.ctx.logger.info('master checking on exit')
for pid in self.ctx.apprentices:
apprentice = self.ctx.apprentices[pid]['process']
if apprentice.is_running():
self.ctx.logger.info(
'terminating apprentice %s pid %d',
self.ctx.apprentices[pid]['location'].uname, pid)
self.deregister_app(pyyjj.now_in_nano(),
self.ctx.apprentices[pid]['location'].uid)
apprentice.terminate()
count = 0
time_to_wait = 10
while count < time_to_wait:
remaining = list(
map(
lambda pid: [self.ctx.apprentices[pid]['location'].uname]
if self.ctx.apprentices[pid]['process'].is_running() else [
], self.ctx.apprentices))
remaining = functools.reduce(lambda x, y: x + y,
remaining) if remaining else []
if remaining:
self.ctx.logger.info(
'terminating apprentices, remaining %s, count down %ds',
remaining, time_to_wait - count)
time.sleep(1)
count = count + 1
else:
break
for pid in self.ctx.apprentices:
apprentice = self.ctx.apprentices[pid]['process']
if apprentice.is_running():
self.ctx.logger.warn(
'killing apprentice %s pid %d',
self.ctx.apprentices[pid]['location'].uname, pid)
apprentice.kill()
self.ctx.logger.info('master cleaned up')
def strfnow(format=DATETIME_FORMAT):
return strftime(pyyjj.now_in_nano(), format)
def reader(ctx, session_id, io_type, from_beginning, max_messages, msg,
continuous, output):
pass_ctx_from_parent(ctx)
session = kfj.find_session(ctx, session_id)
uname = '{}/{}/{}/{}'.format(session['category'], session['group'],
session['name'], session['mode'])
uid = pyyjj.hash_str_32(uname)
ctx.category = '*'
ctx.group = '*'
ctx.name = '*'
ctx.mode = '*'
locations = kfj.collect_journal_locations(ctx)
location = locations[uid]
home = kfj.make_location_from_dict(ctx, location)
io_device = pyyjj.io_device(home)
reader = io_device.open_reader_to_subscribe()
if io_type == 'out' or io_type == 'all':
for dest in location['readers']:
dest_id = int(dest, 16)
reader.join(home, dest_id, session['begin_time'])
if (io_type == 'in' or io_type == 'all'
) and not (home.category == pyyjj.category.SYSTEM
and home.group == 'master' and home.name == 'master'):
master_home_uid = pyyjj.hash_str_32('system/master/master/live')
master_home_location = kfj.make_location_from_dict(
ctx, locations[master_home_uid])
reader.join(master_home_location, 0, session['begin_time'])
master_cmd_uid = pyyjj.hash_str_32('system/master/{:08x}/live'.format(
location['uid']))
master_cmd_location = kfj.make_location_from_dict(
ctx, locations[master_cmd_uid])
reader.join(master_cmd_location, location['uid'],
session['begin_time'])
start_time = pyyjj.now_in_nano(
) if not from_beginning else session["begin_time"]
msg_count = 0
if output:
if msg == "all":
raise ValueError(
"invalid msg {}, please choose from ('quote', 'order', 'trade')"
.format(msg))
msg_type = wc_utils.get_msg_type(msg)
fieldnames = wc_utils.get_csv_header(msg_type)
csv_writer = csv.DictWriter(
open(output, "w"), fieldnames=wc_utils.get_csv_header(msg_type))
csv_writer.writeheader()
pp = pprint.PrettyPrinter(indent=4)
while True:
if reader.data_available() and msg_count < max_messages:
frame = reader.current_frame()
if frame.dest == home.uid and (
frame.msg_type == yjj_msg.RequestReadFrom
or frame.msg_type == yjj_msg.RequestReadFromPublic):
request = pyyjj.get_RequestReadFrom(frame)
source_location = kfj.make_location_from_dict(
ctx, locations[request.source_id])
reader.join(
source_location, location['uid'] if frame.msg_type
== yjj_msg.RequestReadFrom else 0, request.from_time)
if frame.dest == home.uid and frame.msg_type == yjj_msg.Deregister:
loc = json.loads(frame.data_as_string())
reader.disjoin(loc['uid'])
if frame.msg_type == yjj_msg.SessionEnd:
ctx.logger.info("session reach end at %s",
kft.strftime(frame.gen_time))
break
elif frame.gen_time >= start_time and (
msg == "all"
or wc_utils.get_msg_type(msg) == frame.msg_type):
dict_row = wc_utils.flatten_json(
wc_utils.object_as_dict(frame.data))
if output:
csv_writer.writerow(dict_row)
else:
pp.pprint(dict_row)
msg_count += 1
reader.next()
elif msg_count >= max_messages:
ctx.logger.info("reach max messages {}".format(max_messages))
break
elif not reader.data_available():
if not continuous:
ctx.logger.info("no data is available")
break
else:
time.sleep(0.1)
def reader(ctx, session_id, io_type, from_beginning, max_messages, msg,
continuous, output, script):
pass_ctx_from_parent(ctx)
session = kfj.find_session(ctx, session_id)
uname = '{}/{}/{}/{}'.format(session['category'], session['group'],
session['name'], session['mode'])
uid = pyyjj.hash_str_32(uname)
ctx.category = '*'
ctx.group = '*'
ctx.name = '*'
ctx.mode = '*'
locations = kfj.collect_journal_locations(ctx)
location = locations[uid]
home = kfj.make_location_from_dict(ctx, location)
io_device = pyyjj.io_device(home)
reader = io_device.open_reader_to_subscribe()
if io_type == 'out' or io_type == 'all':
for dest in location['readers']:
dest_id = int(dest, 16)
reader.join(home, dest_id, session['begin_time'])
if (io_type == 'in' or io_type == 'all'
) and not (home.category == pyyjj.category.SYSTEM
and home.group == 'master' and home.name == 'master'):
master_home_uid = pyyjj.hash_str_32('system/master/master/live')
master_home_location = kfj.make_location_from_dict(
ctx, locations[master_home_uid])
reader.join(master_home_location, 0, session['begin_time'])
master_cmd_uid = pyyjj.hash_str_32('system/master/{:08x}/live'.format(
location['uid']))
master_cmd_location = kfj.make_location_from_dict(
ctx, locations[master_cmd_uid])
reader.join(master_cmd_location, location['uid'],
session['begin_time'])
start_time = pyyjj.now_in_nano(
) if not from_beginning else session["begin_time"]
msg_count = 0
msg_type_to_read = None if msg == "all" else kungfu.msg.Registry.meta_from_name(
msg)["id"]
if output:
if msg not in kungfu.msg.Registry.type_names():
raise ValueError("invalid msg {}, please choose from {}".format(
kungfu.msg.Registry.type_names()))
csv_writer = None
def handle(frame):
data_as_dict = frame["data"]
dict_row = kungfu.msg.utils.flatten_json(data_as_dict)
nonlocal csv_writer
if not csv_writer:
csv_writer = csv.DictWriter(open(output, "w"),
fieldnames=dict_row.keys())
csv_writer.writeheader()
csv_writer.writerow(dict_row)
frame_handler = handle
elif script:
dir = os.path.dirname(script)
name_no_ext = os.path.split(os.path.basename(script))
sys.path.append(os.path.relpath(dir))
impl = importlib.import_module(os.path.splitext(name_no_ext[1])[0])
frame_handler = getattr(impl, 'on_frame', lambda frame: None)
else:
pp = pprint.PrettyPrinter(indent=4)
frame_handler = pp.pprint
while True:
if reader.data_available() and msg_count < max_messages:
frame = reader.current_frame()
if frame.dest == home.uid and (
frame.msg_type == yjj_msg.RequestReadFrom
or frame.msg_type == yjj_msg.RequestReadFromPublic):
request = pyyjj.get_RequestReadFrom(frame)
source_location = kfj.make_location_from_dict(
ctx, locations[request.source_id])
reader.join(
source_location, location['uid'] if frame.msg_type
== yjj_msg.RequestReadFrom else 0, request.from_time)
if frame.dest == home.uid and frame.msg_type == yjj_msg.Deregister:
loc = json.loads(frame.data_as_string())
reader.disjoin(loc['uid'])
if frame.msg_type == yjj_msg.SessionEnd:
ctx.logger.info("session reach end at %s",
kft.strftime(frame.gen_time))
break
elif frame.gen_time >= start_time and (
msg == "all" or msg_type_to_read == frame.msg_type):
try:
frame_handler(frame.as_dict())
except Exception as e:
exc_type, exc_obj, exc_tb = sys.exc_info()
ctx.logger.error(
'error [%s] %s', exc_type,
traceback.format_exception(exc_type, exc_obj, exc_tb))
msg_count += 1
reader.next()
elif msg_count >= max_messages:
ctx.logger.info("reach max messages {}".format(max_messages))
break
elif not reader.data_available():
if not continuous:
ctx.logger.info("no data is available")
break
else:
time.sleep(0.1)
