def test_load_config(self):
#Testing fail case
with self.assertRaises(IOError) as err:
HerdClient(config='/etc/etc/sdfsdfasdiff.conf')
missing_exception = err.exception
self.assertEqual(missing_exception.errno, 2)
#Testing load works
self.client = HerdClient(config=self.config_path)
self.assertEqual(self.client.seed, "127.0.0.1:8338")
#Testing passing arguments in
self.client = HerdClient(seed="127.0.0.2:8888", config=self.config_path)
self.assertEqual(self.client.seed, "127.0.0.2:8888")
with self.assertRaises(AttributeError):
HerdClient(config="%s/configs/failed.conf" % (self.real_path))
def test_request(self):
from gevent.server import StreamServer
def handle_req(sock, address):
timeout = gevent.spawn_later(10, lambda: sock.shutdown(0))
fileobj = sock.makefile()
while True:
try:
line = fileobj.readline()
except IOError:
line = None
timeout.kill()
if not line:
break
else:
msg = json.loads(line)
msg['foo'] = 'bar'
if msg:
fileobj.write(json.dumps(msg))
fileobj.flush()
fileobj.close()
sock.close()
break
self.stream = StreamServer(('127.0.0.1', 8338), handle_req)
self.stream.start()
self.client = HerdClient(seed="127.0.0.1:8338")
msg = { 'testing': 'this' }
response = self.client.request(msg)
self.assertEqual(response['foo'], 'bar')
self.assertEqual(response['testing'], 'this')
self.stream.stop()
class ClientTest(TestCase):
def setUp(self):
self.real_path = os.path.dirname(os.path.realpath(__file__))
self.config_path = "%s/configs/herd_client.conf" % (self.real_path)
def test_load_config(self):
#Testing fail case
with self.assertRaises(IOError) as err:
HerdClient(config='/etc/etc/sdfsdfasdiff.conf')
missing_exception = err.exception
self.assertEqual(missing_exception.errno, 2)
#Testing load works
self.client = HerdClient(config=self.config_path)
self.assertEqual(self.client.seed, "127.0.0.1:8338")
#Testing passing arguments in
self.client = HerdClient(seed="127.0.0.2:8888", config=self.config_path)
self.assertEqual(self.client.seed, "127.0.0.2:8888")
with self.assertRaises(AttributeError):
HerdClient(config="%s/configs/failed.conf" % (self.real_path))
def test_request(self):
from gevent.server import StreamServer
def handle_req(sock, address):
timeout = gevent.spawn_later(10, lambda: sock.shutdown(0))
fileobj = sock.makefile()
while True:
try:
line = fileobj.readline()
except IOError:
line = None
timeout.kill()
if not line:
break
else:
msg = json.loads(line)
msg['foo'] = 'bar'
if msg:
fileobj.write(json.dumps(msg))
fileobj.flush()
fileobj.close()
sock.close()
break
self.stream = StreamServer(('127.0.0.1', 8338), handle_req)
self.stream.start()
self.client = HerdClient(seed="127.0.0.1:8338")
msg = { 'testing': 'this' }
response = self.client.request(msg)
self.assertEqual(response['foo'], 'bar')
self.assertEqual(response['testing'], 'this')
self.stream.stop()
def manager2():
manager = HerdManager(address='127.0.0.1:8339', port=8339, ip='127.0.0.4', config=None,
stream_ip='127.0.0.4', stream_port=8338)
manager.start_listener()
print "Starting Herd Managers"
m1 = Greenlet(manager1)
m1.start()
m2 = Greenlet(manager2)
m2.start()
print "Ensure there are no existing groups in the cluster"
gevent.sleep(8)
msg = {'command': 'groups', 'data': None }
manager_client = HerdClient(seed='127.0.0.1:8338')
response = manager_client.request(msg)
print response
#Start two cluster nodes
def node1():
groups=['phalliday']
managers = ['127.0.0.1:8338']
seeds = []
address = '127.0.0.2:14922'
cluster = HerdCluster(seeds=seeds, address=address, groups=groups, ping_time=5000, managers=managers)
cluster.start()
def node2():
groups=['drizzt51','phalliday']
managers = ['127.0.0.1:8338']
import logging
import random
from herd.cluster.server import HerdCluster
from herd.manager.client import HerdClient
logger = logging.getLogger('')
logger.setLevel(logging.DEBUG)
logger.addHandler(logging.StreamHandler())
groups=['phalliday']
managers = ['127.0.0.1:8338']
msg = { 'command': 'init', 'data': { 'groups': groups } }
seeds = []
address = '127.0.0.2:14922'
client = HerdClient(seed=random.choice(managers))
response = client.request(msg)
if response and len(response['data']['groups']):
for item in response['data']['groups']:
for value in item.values():
for ip in value:
if ip not in seeds and address != ip:
seeds.append(ip)
cluster = HerdCluster(seeds=seeds, address=address, groups=groups, ping_time=5000, managers=managers)
cluster.start()
