redlock-dist
Implementation of distributed locking 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
