There are two things you have to concern yourself with.
1] Bootstrapping the network
The following example creates a network of one node
import gevent_dht
// This tell the network it is the first node by default it listens on port 8339
table = gevent_dht.distributedHashTable( None )
// This sets a value in our hash table
table['key_1'] = [1,2,3]
for i in table['key_1']:
// Prints 123
print i
// Adds an item to a list in a hash table.
// Note : If the key is not in the hash table. It will put a list in place and then append to it.
table.append('key_1', 4)
// Now we are adding another node :
// Another client has connected. It supplied the address of a node in the network to connect with the preexisting network
other_clients_table = gevent_dht.distributedHashTable( '127.0.0.1:8339' , local_port = 8449 )
for i in other_clients_table['key_1']:
// Prints 1234
print i
So in order to connect to an existing network you must have a way to get an address of another member. It doesn't have to be the first node but needs to be a node in the network.
2] Latency/ This may fail
Keys are not guarenteed to persist forever, nodes may crash, the network may eat messages etc... While we are working in tcp/ip mode there may still be bizarre glitches. Always check for a return value of None.
Additionally due to the time it takes for messages to travel the network sometimes a key will not be immedietly available after you set it or when you get the result back it may not be completely current.