def remote_put(node_id, key, value):
'''
Store the key-value pair in to ring via node_id. It will
put into multiple nodes for replication.
Args:
node_id: The node id.
key: The key of key-value pair.
value: The value of key-value pair.
Returns:
N/A
Raises:
N/A
'''
cname = hp._gen_net_id(node_id)
key_id = hp._hash(key)
logger.info('hash({}) -> {}'.format(key, key_id))
succ = key_id
for i in range(0, ct.BACKUP_SUCC_NUM + 1): # put into successors and backups
# find successor
cmd = 'docker exec {} pipenv run python helper.py --local_find_successor {}'\
.format(cname, succ)
proc = sp.run(cmd, shell=True, stdout=sp.PIPE, check=True)
succ = proc.stdout.splitlines()[0]
logger.info('{}th successor is {}'.format(i, succ))
# put value
cmd = 'docker exec {} pipenv run python helper.py --local_put {} {}'\
.format(hp._gen_net_id(succ), key, value)
sp.run(cmd, shell=True, stdout=sp.PIPE, check=True)
# next succ
succ = hp._add(succ, 1)
def test_in_range_ee(self):
'''
test the (start, end]
'''
h = 'b444ac06613fc8d63795be9ad0beaf55011936ac'
node = Node(h)
# start==end
test = h
start = h
end = h
self.assertFalse(node._in_range_ee(test, start, end))
# end = start + 1
test = h
start = h
end = helper._add(h, 1)
self.assertFalse(node._in_range_ee(test, start, end))
# start<test<end
test = h
start = helper._add(h, -10)
end = helper._add(h, 10)
self.assertTrue(node._in_range_ee(test, start, end))
# start=h<end
test = h
start = h
end = helper._add(h, 10)
self.assertFalse(node._in_range_ee(test, start, end))
# start<test=end
test = h
start = helper._add(h, -10)
end = h
self.assertFalse(node._in_range_ee(test, start, end))
# test<start<end
test = h
start = helper._add(h, 10)
end = helper._add(h, 20)
self.assertFalse(node._in_range_ee(test, start, end))
# start>end, test is in
test = helper._format(1)
start = h
end = helper._format(int(h, 16)//2)
self.assertTrue(node._in_range_ee(test, start, end))
def test_add(self):
h = helper._add('0000000000000000000000000000000000000000', -1)
self.assertEqual(h, 'ffffffffffffffffffffffffffffffffffffffff')