U dG4@sddlZddlZddlZddlmZmZmZmZmZm Z ddl m Z ddl m Z mZmZmZddlmZddlmZmZmZmZddlmZGdd d eZGd d d eZGd d d e ZGdddeeZGdddeZGdddeZdS)N) AsyncIteratorIterableMappingSequenceTupleType)Redis) ConnectionConnectionPool EncodableT SSLConnection)AsyncSentinelCommands)ConnectionError ReadOnlyError ResponseError TimeoutError) str_if_bytesc@s eZdZdS)MasterNotFoundErrorN__name__ __module__ __qualname__rr:/tmp/pip-unpacked-wheel-f5h5_hbx/redis/asyncio/sentinel.pyrsrc@s eZdZdS)SlaveNotFoundErrorNrrrrrrsrcsLeZdZfddZddZfddZddZd ed fd d ZZ S)SentinelManagedConnectionc s|d|_tjf|dS)Nconnection_pool)poprsuper__init__)selfkwargs __class__rrrs z"SentinelManagedConnection.__init__cCsD|j}|jjd|j}|jr)rr#r service_namehostport)r poolsZ host_inforrr__repr__s z"SentinelManagedConnection.__repr__csV|\|_|_tIdH|jjrR|dIdHt|IdHdkrRt ddS)NZPINGZPONGz PING failed) r'r(rconnectrcheck_connectionZ send_commandr read_responser)r addressr"rr connect_to's  z$SentinelManagedConnection.connect_toc s|jr dS|jjr0||jIdHIdHnN|j2z<3dHW}z||IdHWStk rtYq:Yq:Xq:6tdSN)Z_readerr is_masterr0get_master_address rotate_slavesrr)r slaverrrr,/sz!SentinelManagedConnection.connectFdisable_decodingcsPztj|dIdHWStk rJ|jjrD|IdHtdYnXdS)Nr6z"The previous master is now a slave)rr.rrr2 disconnectr)r r7r"rrr.<sz'SentinelManagedConnection.read_response)F) rrrrr+r0r,boolr. __classcell__rrr"rrs    rc@s eZdZdS)SentinelManagedSSLConnectionNrrrrrr;Ksr;cs\eZdZdZfddZddZfddZedfd d Zd d Z e d ddZ Z S)SentinelConnectionPoolz Sentinel backed connection pool. If ``check_connection`` flag is set to True, SentinelManagedConnection sends a PING command right after establishing the connection. c sv|d|ddrtnt|d<|dd|_|dd|_tjf|t ||j d<||_ ||_ d|_ d|_dS)NZconnection_classsslFr2Tr-r)getrr;rr2r-rrweakrefproxyconnection_kwargsr&sentinel_managermaster_addressslave_rr_counter)r r&rBr!r"rrrWs zSentinelConnectionPool.__init__cCs&|jjd|jd|jrdpddS)Nr$(Zmasterr5z)>)r#rr&r2r rrrr+gs$zSentinelConnectionPool.__repr__cstd|_d|_dSr1)rresetrCrDrFr"rrrGms zSentinelConnectionPool.reset) connectioncs0|j p|jo|j|j|jfk}|o.t|Sr1)r2rCr'r(rowns_connection)r rHcheckr"rrrIrsz&SentinelConnectionPool.owns_connectioncs@|j|jIdH}|jr<|j|kr<||_|jddIdH|S)NF)Zinuse_connections)rBdiscover_masterr&r2rCr8)r rCrrrr3xs  z)SentinelConnectionPool.get_master_address)returncCs|j|jIdH}|rn|jdkr8tdt|d|_tt|D](}|jdt||_||j}|VqDz|IdHVWnt k rYnXt d|jdS)zRound-robin slave balancerNrzNo slave found for ) rBdiscover_slavesr&rDrandomrandintlenranger3rr)r slaves_r5rrrr4s  z$SentinelConnectionPool.rotate_slaves) rrr__doc__rr+rGr rIr3rr4r:rrr"rr<Os   r<c@seZdZdZdddZddZdd Zeee d d d Z ed ddZ e e eeeefdddZeeeeefdddZeefeeeeedddZeefeeeeedddZdS)Sentinela~ Redis Sentinel cluster client >>> from redis.sentinel import Sentinel >>> sentinel = Sentinel([('localhost', 26379)], socket_timeout=0.1) >>> master = sentinel.master_for('mymaster', socket_timeout=0.1) >>> await master.set('foo', 'bar') >>> slave = sentinel.slave_for('mymaster', socket_timeout=0.1) >>> await slave.get('foo') b'bar' ``sentinels`` is a list of sentinel nodes. Each node is represented by a pair (hostname, port). ``min_other_sentinels`` defined a minimum number of peers for a sentinel. When querying a sentinel, if it doesn't meet this threshold, responses from that sentinel won't be considered valid. ``sentinel_kwargs`` is a dictionary of connection arguments used when connecting to sentinel instances. Any argument that can be passed to a normal Redis connection can be specified here. If ``sentinel_kwargs`` is not specified, any socket_timeout and socket_keepalive options specified in ``connection_kwargs`` will be used. ``connection_kwargs`` are keyword arguments that will be used when establishing a connection to a Redis server. rNc sD|dkrdd|D}|_fdd|D_|_|_dS)NcSs i|]\}}|dr||qS)Zsocket_) startswith).0kvrrr s z%Sentinel.__init__..cs&g|]\}}tf||djqS))r'r()rsentinel_kwargs)rXhostnamer(rFrr sz%Sentinel.__init__..)itemsr\ sentinelsmin_other_sentinelsrA)r r`rar\rArrFrrs  zSentinel.__init__csptdd}dkr&d|rRfdd|jD}tj|IdHnt|jj IdHdS)z Execute Sentinel command in sentinel nodes. once - If set to True, then execute the resulting command on a single node at random, rather than across the entire sentinel cluster. onceFcsg|]}t|jqSr)asyncioZTaskexecute_command)rXsentinelargsr!rrr^sz,Sentinel.execute_command..NT) r9r>keysrr`rcZgatherrOchoicerd)r rgr!rbZtasksrrfrrds   zSentinel.execute_commandcCsNg}|jD](}||jjdd|jjdq |jjdd|dS)Nr':r(z )r`appendrrAr#rjoin)r Zsentinel_addressesrerrrr+s  zSentinel.__repr__)stater&rLcCs2|dr|ds|drdS|d|jkr.dSdS)Nr2is_sdownis_odownFznum-other-sentinelsT)ra)r rnr&rrrcheck_master_states zSentinel.check_master_state)r&c st|jD]\}}z|IdH}Wnttfk r@Yq YnX||}|r |||r ||jd|jd<|j|<|d|dfSq td|dS)z Asks sentinel servers for the Redis master's address corresponding to the service labeled ``service_name``. Returns a pair (address, port) or raises MasterNotFoundError if no master is found. Nripr(zNo master found for ) enumerater`Zsentinel_mastersrrr>rqr)r r&Z sentinel_noreZmastersrnrrrrKs  zSentinel.discover_master)rSrLcCs:g}|D],}|ds|drq||d|dfq|S)z1Remove slaves that are in an ODOWN or SDOWN staterprorrr()rl)r rSZ slaves_aliver5rrr filter_slavess zSentinel.filter_slaves)r&rLc sZ|jD]N}z||IdH}Wntttfk r<YqYnX||}|r|SqgS)z;Returns a list of alive slaves for service ``service_name``N)r`Zsentinel_slavesrrrrt)r r&rerSrrrrNs    zSentinel.discover_slaves)r& redis_classconnection_pool_classcKs0d|d<t|j}||||||f|dS)a Returns a redis client instance for the ``service_name`` master. A :py:class:`~redis.sentinel.SentinelConnectionPool` class is used to retrieve the master's address before establishing a new connection. NOTE: If the master's address has changed, any cached connections to the old master are closed. By default clients will be a :py:class:`~redis.Redis` instance. Specify a different class to the ``redis_class`` argument if you desire something different. The ``connection_pool_class`` specifies the connection pool to use. The :py:class:`~redis.sentinel.SentinelConnectionPool` will be used by default. All other keyword arguments are merged with any connection_kwargs passed to this class and passed to the connection pool as keyword arguments to be used to initialize Redis connections. Tr2rdictrAupdater r&rurvr!rArrr master_fors  zSentinel.master_forcKs0d|d<t|j}||||||f|dS)a Returns redis client instance for the ``service_name`` slave(s). A SentinelConnectionPool class is used to retrieve the slave's address before establishing a new connection. By default clients will be a :py:class:`~redis.Redis` instance. Specify a different class to the ``redis_class`` argument if you desire something different. The ``connection_pool_class`` specifies the connection pool to use. The SentinelConnectionPool will be used by default. All other keyword arguments are merged with any connection_kwargs passed to this class and passed to the connection pool as keyword arguments to be used to initialize Redis connections. Fr2rwrxr{rrr slave_forBs  zSentinel.slave_for)rN)rrrrUrrdr+rystrr9rqrKrrrrr rtrNrr<rr|r}rrrrrVs8     )rV) rcrOr?typingrrrrrrZredis.asyncio.clientrZredis.asyncio.connectionr r r r Zredis.commandsr Zredis.exceptionsrrrrZ redis.utilsrrrrr;r<rVrrrrs    1E