redlock-dist 1.0.1

redlock-dist

Implementation of distributed locking with Redis

Distributed locks with Redis

Usage

Install:

pip install redlock-dist

example:

from redis import StrictRedis
from redlock_dist import RedLock

rds = StrictRedis(host='localhost', port=6379, db=0)

"""
:param expire: lock key ttl(ms)
:param retry_times: retry times to get lock
:param retry_interval: retry interval(ms)
"""
with RedLock(rds, 'key-name', expires=30000, retry_times=3, retry_interval=50) as red_lock:

    if red_lock:
        print('get lock')
    else:
        print('do not get lock')

Principle and notes

Because Redis is single-threaded and you can use SET key value NX PX expires