The KEEPTTL option will be added to SET in redis>=6.0 https://redis.io/commands/set https://github.com/antirez/redis/pull/6679 The SET command supports a set of options that modify its behavior: EX seconds — Set the specified expire time, in seconds. PX milliseconds — Set the specified expire time, in milliseconds. NX — Only set the key if it does not already … Read more
You should await client.connect() before using the client
Perhaps flushdb or flushall are options that you can look into. In Node, with the client, these look like this: client.flushdb( function (err, succeeded) { console.log(succeeded); // will be true if successfull });
You can del use like this: redis.del(‘SampleKey’);
Edit: In Socket.IO 1.0+, rather than setting a store with multiple Redis clients, a simpler Redis adapter module can now be used. var io = require(‘socket.io’)(3000); var redis = require(‘socket.io-redis’); io.adapter(redis({ host: ‘localhost’, port: 6379 })); The example shown below would look more like this: var cluster = require(‘cluster’); var os = require(‘os’); if (cluster.isMaster) … Read more
From here: eval “return #redis.pcall(‘keys’, ‘abc:*’)” 0 It’s not O(1), but at least the count is done on the server side.