def start_as_dht_member(self):
if self.status == DS_DESTROYING:
return
self.status = DS_INITIALIZE
dht_range = self.get_dht_range()
curr_start = dht_range.get_start()
curr_end = dht_range.get_end()
last_range = dht_range.get_last_range()
if last_range and not self.__split_requests_cache:
new_range = self.__get_next_range_near(last_range[0], last_range[1])
elif dht_range.is_max_range() or self.__split_requests_cache:
new_range = self.__get_next_max_range()
else:
new_range = self.__get_next_range_near(curr_start, curr_end)
if new_range is None:
#wait and try again
if self.__start_dht_try_count == Config.DHT_CYCLE_TRY_COUNT:
logger.error('Cant initialize node as a part of DHT')
self.__start_dht_try_count = 0
return
logger.info('No ready range for me on network... So, sleep and try again')
self.__start_dht_try_count += 1
self.__split_requests_cache = []
time.sleep(Config.WAIT_RANGE_TIMEOUT)
return self.start_as_dht_member()
if (new_range.start == curr_start and new_range.end == curr_end):
new_dht_range = dht_range
else:
new_dht_range = FSHashRanges(long(new_range.start), long(new_range.end), self.save_path)
self.update_dht_range(new_dht_range)
new_dht_range.restore_from_reservation() #try getting new range data from reservation
if new_range.node_address == self.self_address:
self._take_range(new_range)
self.set_status_to_normalwork()
return
self.__split_requests_cache.append(new_range.node_address)
logger.info('Call SplitRangeRequest [%040x-%040x] to %s'% \
(new_dht_range.get_start(), new_dht_range.get_end(), new_range.node_address,))
parameters = { 'start_key': new_dht_range.get_start(), 'end_key': new_dht_range.get_end() }
req = FabnetPacketRequest(method='SplitRangeRequest', sender=self.self_address, parameters=parameters)
self.call_node(new_range.node_address, req)
