redis python操作api

redis单例数据库

 #redis单例连接
 '''
 redis-server redis_diy.conf
 '''
 import redis
 conn=redis.StrictRedis(host='192.168.160.135',port='',db=0,password='')#redis配置文件，db指定redis数据库的隔离区，有0-15共16个，默认为0
 print(conn.dbsize())
 print(conn.keys())
 conn.set('age',18)
 print(conn.keys())
 print(conn.get('name'))
 print(conn.exists('name'))

redis单例数据库

redis-sentinel（哨兵）

 #redis-sentinel连接
 '''
 启动redis服务端(6390主库)：
     redis-server msconf/redis-6390.conf
     redis-server msconf/redis-6391.conf
     redis-server msconf/redis-6392.conf
     redis-server msconf/redis-6393.conf
 启动哨兵功能：
     redis-sentinel redis_sentinel/redis-sentinel_26390.conf
     redis-sentinel redis_sentinel/redis-sentinel_26391.conf
     redis-sentinel redis_sentinel/redis-sentinel_26392.conf
 '''

 ## 导入redis sentinel包
 from redis.sentinel import Sentinel
 #指定sentinel的地址和端口号（连接哨兵）
 sentinel=Sentinel([('192.168.160.135',26390),('192.168.160.135',26391),('192.168.160.135',26392)],socket_timeout=0.1)
 #测试，获取以下主库和从库的信息：mymaster是哨兵配置文件中的指定的监控主库
 print(sentinel.discover_master('mymaster'))#主库信息
 print(sentinel.discover_slaves('mymaster'))#从库信息

 ##配置读写分离
 #写节点：主库
 master=sentinel.master_for('mymaster',password=123456,socket_timeout=0.1)#注意主库设置了安全模式有密码
 print(master)
 #读节点:从库
 slave=sentinel.slave_for('mymaster',password=123456,socket_timeout=0.1)#注意从库设置了安全模式有密码
 print(slave)

 #读写分离测试
 print(master.dbsize())
 print(master.keys())
 print(slave.keys())
 master.set('name4',4)
 print(slave.keys())
 print(slave.get('name4'))

redis-sentinel（哨兵）

redis-cluster(集群)

 # redis-cluster集群:https://github.com/Grokzen/redis-py-cluster
 # pip install redis-py-cluster
 from rediscluster import StrictRedisCluster
 #是少要链接集群中的一台数据库，可以是多台，防止有的数据库会挂掉
 startup_nodes = [{"host": "192.168.160.135", "port": ""}, {"host": "192.168.160.135", "port": ""},
                  {"host": "192.168.160.135", "port": ""}, {"host": "192.168.160.135", "port": ""},
                  {"host": "192.168.160.135", "port": ""}, {"host": "192.168.160.135", "port": ""} ]
 rc = StrictRedisCluster(startup_nodes=startup_nodes,password=123456, decode_responses=True)
 rc.set('name1',1234)
 print(rc.keys())
 print(rc.dbsize())
 print(rc.get('name1'))

redis-cluster(集群)