def test_discover_slaves(cluster, sentinel):
assert sentinel.discover_slaves('mymaster') == []
cluster.slaves = [
{
'ip': 'slave0',
'port': 1234,
'is_odown': False,
'is_sdown': False
},
{
'ip': 'slave1',
'port': 1234,
'is_odown': False,
'is_sdown': False
},
]
assert sentinel.discover_slaves('mymaster') == [('slave0', 1234),
('slave1', 1234)]
# slave0 -> ODOWN
cluster.slaves[0]['is_odown'] = True
assert sentinel.discover_slaves('mymaster') == [('slave1', 1234)]
# slave1 -> SDOWN
cluster.slaves[1]['is_sdown'] = True
assert sentinel.discover_slaves('mymaster') == []
cluster.slaves[0]['is_odown'] = False
cluster.slaves[1]['is_sdown'] = False
# node0 -> DOWN
cluster.nodes_down.add(('foo', 26379))
assert sentinel.discover_slaves('mymaster') == [('slave0', 1234),
('slave1', 1234)]
def test_discover_slaves(cluster, sentinel):
assert sentinel.discover_slaves('mymaster') == []
cluster.slaves = [
{'ip': 'slave0', 'port': 1234, 'is_odown': False, 'is_sdown': False},
{'ip': 'slave1', 'port': 1234, 'is_odown': False, 'is_sdown': False},
]
assert sentinel.discover_slaves('mymaster') == [
('slave0', 1234), ('slave1', 1234)]
# slave0 -> ODOWN
cluster.slaves[0]['is_odown'] = True
assert sentinel.discover_slaves('mymaster') == [
('slave1', 1234)]
# slave1 -> SDOWN
cluster.slaves[1]['is_sdown'] = True
assert sentinel.discover_slaves('mymaster') == []
cluster.slaves[0]['is_odown'] = False
cluster.slaves[1]['is_sdown'] = False
# node0 -> DOWN
cluster.nodes_down.add(('foo', 26379))
assert sentinel.discover_slaves('mymaster') == [
('slave0', 1234), ('slave1', 1234)]
def check(self):
log.info('检查 Redis Sentinel 连接: %s', self._master)
try:
sentinel = redis.sentinel.Sentinel(
[s.split(':') for s in self._sentinels],
password=self._password,
socket_timeout=0.1)
log.info('> master: %s', sentinel.discover_master(self._master))
log.info('> slaves: %s', sentinel.discover_slaves(self._master))
log.info('尝试获取 master 节点状态信息...')
master = sentinel.master_for(self._master, socket_timeout=0.1)
self._log_redis_info(master.info())
except redis.sentinel.MasterNotFoundError as e:
log.error('检查 Redis Sentinel 出错: %s - %s', e.__class__, e)
def test_discover_slaves(cluster, sentinel):
assert sentinel.discover_slaves("mymaster") == []
cluster.slaves = [
{
"ip": "slave0",
"port": 1234,
"is_odown": False,
"is_sdown": False
},
{
"ip": "slave1",
"port": 1234,
"is_odown": False,
"is_sdown": False
},
]
assert sentinel.discover_slaves("mymaster") == [("slave0", 1234),
("slave1", 1234)]
# slave0 -> ODOWN
cluster.slaves[0]["is_odown"] = True
assert sentinel.discover_slaves("mymaster") == [("slave1", 1234)]
# slave1 -> SDOWN
cluster.slaves[1]["is_sdown"] = True
assert sentinel.discover_slaves("mymaster") == []
cluster.slaves[0]["is_odown"] = False
cluster.slaves[1]["is_sdown"] = False
# node0 -> DOWN
cluster.nodes_down.add(("foo", 26379))
assert sentinel.discover_slaves("mymaster") == [("slave0", 1234),
("slave1", 1234)]
cluster.nodes_down.clear()
# node0 -> TIMEOUT
cluster.nodes_timeout.add(("foo", 26379))
assert sentinel.discover_slaves("mymaster") == [("slave0", 1234),
("slave1", 1234)]