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🐤 🐤 🐤 用redis实现的分布式锁,含有超时和重试次数的控制

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redis_netlock

介绍:

一个用redis实现的分布式锁,含有retry和timetout的功能。

  • 用with做锁的逻辑语句
  • timeout避免了避免了任务出现异常,没有做delete操作
  • 对于长时间的业务,增加retry重试锁的次数

更新:

  1. 增加了ask_lock接口
#coding:utf-8
#blog: http://xiaorui.cc

import time
from __future__ import with_statement

import redis
from redis_netlock import dist_lock

client = redis.Redis(connection_pool=redis.BlockingConnectionPool(max_connections=15, host='localhost', port=6379))
with dist_lock('test', client):
    time.sleep(10)
    print 'welcome to my blog, http://xiaorui.cc'

example:

同时运行test.py and test2.py

python test.py

[root@li568-252 redis_netlock]# python test.py
welcome to my blog, http://xiaorui.cc

python test2.py

[root@li568-252 redis_netlock]# python test2.py
Sleeipng for 0.404031367603
Sleeipng for 1.19347232007
Sleeipng for 2.47668271021
Sleeipng for 4.55280708824
hello

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🐤 🐤 🐤 用redis实现的分布式锁,含有超时和重试次数的控制

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