Redis

Recently more busy, study a lot of Java things, slowly published.Use a Linux system.Redis memory database for simple key and value storage. High efficiency.1. Download Rediswget http://redis.googlecode.com/files/redis-2.2.12.tar.gz2. Compiling the

Installation configuration of Redis under Ubuntu environment1. Brief introductionDis is a key-value storage system. Similar to memcached, it supports storing more value types, including string (string), list (linked list), set (set), Zset (sorted

question No. 0003: Save the 200 activation codes (or coupons) generated by 0001 questions to the Redis non-relational database.Similar to the 0002 question, it is just the exchange of relational databases with non-relational databases.Steps:

#!/usr/bin/python#coding=utf-8import redisclass urllist (): ########################################## #### create by myjack# you can call the function by urllist  class.# vertion : v-01# date : 2015-4-5################################### ########## 

Exception troubleshootingRedis-server redis.windows.confD:\redis-2.8.17>redis-server.exe redis.windows.conf[4692] 12:14:05.995 #The Windows version of Redis allocates a memory mapped heap for sharing withThe forked process used for persistence

A total of five data types:1, Strings-string127.0.0.1:6379> set name "Zhaoja" ok127.0.0.1:6379> Get Name "Zhaoja"2, hashes-hash value3. Lists-ListThe Redis list is a simple list of strings, sorted in order of insertion. You can add elements to the

Original:Redis learning note 4--redis data storage optimization mechanism1.Zipmap optimized Hash:The previous talk of storing an object in a hash type consumes less memory and makes it easier to access the entire object. The reason for saving memory

Original: The LRU mechanism of RedisIn Redis, if you set the MaxMemory, it is necessary to configure the key recycle mechanism parameter maxmemory-policy, default VOLATILE-LRU, see the original blog of the Redis Author: Antirez Weblog >> Redis As an

The basic building of a Redis cluster is described in Redis 3 cluster (i). This section focuses on the operation of the Redis cluster. Add master node to cluster Create a new instance of port 7006 as per Redis cluster one, and start the

OverviewOnly the operation steps and cluster tests are documented to ensure a fast cluster environment. Please refer to the Official document (Chinese version) for the specific principle: Http://redisdoc.com/topic/cluster-tutorial.html

Redis is an open source API that is written in ANSI C, supports the Web , can be persisted in memory, key-value databases, and provides multiple languages. Unlike the normal key-value structure, the Redis key supports a flexible data structure,

Redis Cluster Deployment Documentation (CENTOS6 system ) (To make the cluster work at least 3 primary nodes, here we will create 6 redis nodes, of which three are the primary node, three are slave nodes, the corresponding redis node IP and port

I. Installing the necessary packagesYum Install GCCTwo. Install under Linux# download wget http://download.redis.io/releases/redis-3.0.0. Tar.gztar zxvf redis-3.0.0. tar.gzcd Redis-3.0.0# If no parameters are added, Linux will error make

Redis's handling of transactions is so simple that Redis can only guarantee that commands in one client-initiated transaction can be executed consecutively, without inserting another client's commands, and when a client issues a multi command in a

11.redis Common CommandsKeys * Returns all keysKeys my* Fuzzy MatchingExists key to confirm if key existsDel keyExpire key time expires in [seconds] for an existing key settingTTL key to view expiration time, 1 means expiredMove moves the key in the

About Redis?? Redis is an abbreviation for the Remote Dictionary Server (Redis), and maybe you can guess what it's about by listening to your name. Yes, it is a Key-value storage system written by Salvatore Sanfilippo, a Key-value database that is

wget http://download.redis.io/releases/redis-2.8.3.tar.gztar xzf redis-2.8.3.tar.gzCD redis-2.8.3 Make2. After compiling, in the./src directory, there are three executables redis-server, Redis-benchmark, Redis-cli, and./redis.conf and then copied to

ObjectivePreviously there has been the use of celery priority mechanism (Redis-based task queue), has been very curious about its implementation mechanism, after consulting some of the information, decided to write this article, as a summary.1.

Key-Value Related commandsKeys * Returns all keys keys my*exists Mykey1 whether there is a mykey1 keyDel MyKey Delete MyKey keyExpire MyKey 10 setting MyKey key expiration time is 10 secondsTTL MyKey get MyKey Expiration time (constantly changing),-1

Chapter7 Compression ListOne of the underlying implementations of the list key and hash keys (the list key contains only a few elements, and the elements are small integers or shorter strings, and the hash keys contain a small number of key-value