Python StrictRedis.ping方法代碼示例

# 需要導入模塊: from redis.client import StrictRedis [as 別名]
# 或者: from redis.client.StrictRedis import ping [as 別名]
c = StrictRedis('localhost', 55511)
wait_for_redis(c)

sentinel = Sentinel([('localhost', 55511)], socket_timeout=0.1)
if sentinel.discover_master(NAME)[1] != 33311:
    print 'unexpected situation: expecting port 33311 to be the master'
    sys.exit(99)

print """>> Getting an High Availability connection through the sentinel.
"""
mha = sentinel.master_for(NAME)
if int(mha.config_get()['port']) != 33311:
    print 'unexpected master. expecting master to be on port 33311.'
    sys.exit(99)

assert mha.ping() and a.ping()

print """>> Currently: (MASTER:{})<==(SLAVES:{})""".format(sentinel.discover_master(NAME),
                                                           sentinel.discover_slaves(NAME))

print """>> Stopping A instance (current master)
"""
# err = subprocess.call('./stop-master.sh')
# if err:
#     print 'error stopping master instance.'
#     sys.exit(99)
raw_input('./stop-master.sh')
print ">> waiting for A to stop."

try:
    while a.ping():

# 需要導入模塊: from redis.client import StrictRedis [as 別名]
# 或者: from redis.client.StrictRedis import ping [as 別名]
class RedisStore():
    def __init__(self, db_host, db_port, db_num, db_pw):
        self.pool = ConnectionPool(max_connections=2, db=db_num, host=db_host, port=db_port, password=db_pw,
                                   decode_responses=True)
        self.redis = StrictRedis(connection_pool=self.pool)
        self.redis.ping()
        self._object_map = WeakValueDictionary()

    def create_object(self, dbo_class, dbo_dict, update_timestamp=True):
        dbo_class = get_dbo_class(getattr(dbo_class, 'dbo_key_type', dbo_class))
        if not dbo_class:
            return
        try:
            dbo_id = dbo_dict['dbo_id']
        except KeyError:
            dbo_id, dbo_dict = dbo_dict, {}
        if dbo_id is None or dbo_id == '':
            warn("create_object called with empty dbo_id")
            return
        dbo_id = str(dbo_id).lower()
        if self.object_exists(dbo_class.dbo_key_type, dbo_id):
            raise ObjectExistsError(dbo_id)
        dbo = dbo_class()
        dbo.dbo_id = dbo_id
        dbo.hydrate(dbo_dict)
        dbo.db_created()
        if dbo.dbo_set_key:
            self.redis.sadd(dbo.dbo_set_key, dbo.dbo_id)
        self.save_object(dbo, update_timestamp)
        return dbo

    def save_object(self, dbo, update_timestamp=False, autosave=False):
        if update_timestamp:
            dbo.dbo_ts = int(time.time())
        if dbo.dbo_indexes:
            self._update_indexes(dbo)
        self._clear_old_refs(dbo)
        save_root, new_refs = dbo.to_db_value()
        self.redis.set(dbo.dbo_key, json_encode(save_root))
        if new_refs:
            self._set_new_refs(dbo, new_refs)
        debug("db object {} {}saved", dbo.dbo_key, "auto" if autosave else "")
        self._object_map[dbo.dbo_key] = dbo
        return dbo

    def save_raw(self, key, raw):
        self.redis.set(key, json_encode(raw))

    def load_raw(self, key, default=None):
        json = self.redis.get(key)
        if json:
            return json_decode(json)
        return default

    def load_cached(self, dbo_key):
        return self._object_map.get(dbo_key)

    def load_object(self, dbo_key, key_type=None, silent=False):
        if key_type:
            try:
                key_type = key_type.dbo_key_type
            except AttributeError:
                pass
            try:
                dbo_key, dbo_id = ':'.join([key_type, dbo_key]), dbo_key
            except TypeError:
                if not silent:
                    exception("Invalid dbo_key passed to load_object", stack_info=True)
                return
        else:
            key_type, _, dbo_id = dbo_key.partition(':')
        cached_dbo = self._object_map.get(dbo_key)
        if cached_dbo:
            return cached_dbo
        json_str = self.redis.get(dbo_key)
        if not json_str:
            if not silent:
                warn("Failed to find {} in database", dbo_key)
            return
        return self.load_from_json(json_str, key_type, dbo_id)

    def load_from_json(self, json_str, key_type, dbo_id):
        dbo_dict = json_decode(json_str)
        dbo = get_mixed_type(key_type, dbo_dict.get('mixins'))()
        dbo.dbo_id = dbo_id
        self._object_map[dbo.dbo_key] = dbo
        dbo.hydrate(dbo_dict)
        return dbo

    def object_exists(self, obj_type, obj_id):
        return self.redis.exists('{}:{}'.format(obj_type, obj_id))

    def load_object_set(self, dbo_class, set_key=None):
        key_type = dbo_class.dbo_key_type
        if not set_key:
            set_key = dbo_class.dbo_set_key
        results = set()
        keys = deque()
        pipeline = self.redis.pipeline()
        for key in self.fetch_set_keys(set_key):
#.........這裏部分代碼省略.........