def _send_heartbeat(self, update_frequency=2.0):
"""Send a heartbeat to the Combiner. """
while True:
heartbeat = fedn.Heartbeat(sender=fedn.Client(name=self.name, role=fedn.WORKER))
try:
self.connection.SendHeartbeat(heartbeat)
except grpc.RpcError as e:
status_code = e.code()
print("CLIENT heartbeat: GRPC ERROR {} retrying..".format(status_code.name), flush=True)
import time
time.sleep(update_frequency)
def ListActiveClients(self, request: fedn.ListClientsRequest, context):
""" RPC endpoint that returns a ClientList containing the names of all active clients.
An active client has sent a status message / responded to a heartbeat
request in the last 10 seconds.
"""
clients = fedn.ClientList()
active_clients = self._list_active_clients(request.channel)
for client in active_clients:
clients.client.append(fedn.Client(name=client, role=fedn.WORKER))
return clients
def _send_heartbeat(self, update_frequency=2.0):
while True:
heartbeat = fedn.Heartbeat(sender=fedn.Client(name=self.name, role=fedn.WORKER))
try:
self.connection.SendHeartbeat(heartbeat)
# self.send_status("HEARTBEAT from {}".format(self.client),log_level=fedn.Status.INFO)
except grpc.RpcError as e:
status_code = e.code()
print("CLIENT heartbeat: GRPC ERROR {} retrying..".format(status_code.name), flush=True)
import time
time.sleep(update_frequency)
def _send_heartbeat(self, update_frequency=2.0):
"""Send a heartbeat to the combiner.
Parameters
----------
update_frequency : float
The interval in seconds between heartbeat messages.
"""
while True:
heartbeat = fedn.Heartbeat(sender=fedn.Client(name=self.name, role=fedn.WORKER))
try:
self.connection.SendHeartbeat(heartbeat)
self._missed_heartbeat = 0
except grpc.RpcError as e:
status_code = e.code()
print("CLIENT heartbeat: GRPC ERROR {} retrying..".format(status_code.name), flush=True)
self._handle_combiner_failure()
time.sleep(update_frequency)
if not self._attached:
return