def increment_chunk_replication_degree(self,message,addr):
ip=addr[0]
data = Data(self.db_path)
file_id=message.split(" ")[2]
chunk_number=message.split(" ")[3]
print "file_id: *"+file_id+"*"
print "chunk_number: *"+chunk_number+"*"
if(data.increment_replication_degree(file_id, chunk_number,ip)):
print "replication degree: " + str(data.get_chunk_replication_degree(file_id, chunk_number))
def check_bigger_replication_degree(self, message, addr):
data = Data(self.db_path)
file_id = message.split(" ")[2]
chunk_number = message.split(" ")[3]
replication_degree = data.get_chunk_replication_degree(file_id, chunk_number)
minimum_replication_degree = data.get_chunk_minimum_replication_degree(file_id, chunk_number)
if (data.chunk_owner(file_id) and replication_degree >= minimum_replication_degree and not data.chunk_have_replication_host(file_id, chunk_number, addr[0])):
print_message("Sending a chunk delete to "+str(addr[0])+" because the replication degree was already enough")
message="deletechunk " + file_id + " "+ chunk_number
self.shell.sendto(message, (addr[0], SHELL_PORT))
return True
return False
def update_chunk_replication_degree(self,message,addr):
file_id=message.split(" ")[2]
chunk_number=message.split(" ")[3].strip(CRLF+CRLF)
host=addr[0]
data = Data(self.db_path)
if(data.get_chunk_id(chunk_number, file_id)):
data.remove_chunk_replication_degree(file_id, chunk_number, host)
# check replication degree
replication_degree=data.get_chunk_replication_degree(file_id, chunk_number)
minimum_replication_degree=data.get_chunk_minimum_replication_degree(file_id , chunk_number)
print_message("Chunk replication degree is "+str(replication_degree) + " and minimum is "+str(minimum_replication_degree))
if(replication_degree<minimum_replication_degree):
print_message("Chunk replication degree is not enough. Sending a PUTCHUNK")
self.put_chunk(file_id,chunk_number,replication_degree)