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Redis distributed lock across multiple instances/servers using setnx
- Redis 2.6.12
var lock =
Both methods return promises.
acquire (key, options)
Take the lock and avoid others to take it. `key` is a string key identifying the lock
`ttl` Lock time to live in milliseconds (will be automatically released after that time) `timeout` Time trying to get lock before (ms) `wait` Time between 2 tries getting lock (ms)
Release the lock for others. `key` string identifying the lock
Tells if the lock is taken. `key` string identifying the lock returns `true` or `false`
renew (key, ttl)
`key` string identifying the lock `ttl` new lock time-to-live in ms