redis nosql

1:redis official Http://redis.io/downloadDownload down, there are 32-bit, have 64-bit, choose for themselves.2: Place the Redis folder on the D drive:D:\redis3: Use the CD command to switch folders to D:\redis to perform Redis-server.exe. The Redis service is ready to start

MongoDB Series:MongoDB IntroductionMongoDB 2.4.10 Installation and configurationMongoDB implements Currentop timing captureMongoDB uses replica set backup to add new secondary replica membersMongoDB Log switch (Rotate log Files) methods and considerationsMongoDB Log switch (Rotate log Files) guideMongoDB Log switch (Rotate log Files) combatReplset error RS102 too stale to catch up Memcache Series:Memcache IntroductionMemcached 1.4.22 Installation and configurationConsistent hashing algorit

Download to the lamp directory via wget: Composer [root @ localhostlamp] # cdredis-2.4.18 Editor Download to the lamp directory through wget: [root @ localhost home] # mkdir lamp [root @ localhost lamp] # wget http://redis.googlecode.com/files/redis-2.4.18.tar.gz unzip [root @ localhost lamp] # tar zxvf redis-2.4.18.tar.gz [root @ localhost lamp] # cd redis-2.4.1

Label:1.Redis IntroductionRedis 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 set-ordered collection), and hash (hash type). These data types support Push/pop, Add/remove, and intersection-set and difference sets, and richer operations, and these operations are atomic. Based on this, Redis sup

192.168.157.11 6379Redis6381.confPort 6381182 Dbfilename Dump6381.rdb513 Appendfilename "Appendonly6381.aof"211 Slaveof 192.168.157.11 6379Note: default: Read-only from node(Error) READONLY you can ' t write against a read only slave.Modify Parameters:Slave-read-only Yes# Masterauth 4. The process of communication between master and slave nodesMaster node from nodeSynchronizing an RDB----------->Synchronizing the aof-----------> Redo LogsMust NOTE: Each time you start, the number of nodes from

Download can download the address of the decompression installation: Https://github.com/dmajkic/redis/downloadsModify Redis.confUncomment Requirepass foobaredRun Redis-serverRun REDIS-CLIAuthorized Auth FoobaredDownload NuGet Package Servicestack.redisC#Static voidMain (string[] args) { stringHost ="127.0.0.1"; stringElementkey ="TestKey"; intPort =637

Http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis from Cassandra vs MongoDB vs couchdb vs redis vs Riak vs hbase vs membase vs neo4j While SQL databases are insanely useful tools, their monopoly ~ 15 years is coming to an end. And it was just time: I can't even count the things that were forced into relational databases, but never really fitted them. But the differences between

Redis OverviewRedis was developed by Salvatore Sanfilippo in 2009 for its start-up company Lloogg, and is still a standalone project, but VMware likes the project (the author is its employee). It is implemented in C language, so it performs well. Use a BSD license that uses key-value storage, similar to Amazon Dynamo,cassandra,riak,voldemort,memcache. Support for rich data types, such as arrays, lists, collections, etc., is ideal for Web services that

Tags: redis backup master-SlaveRedis Persistence – Two waysRedis provides two ways to persist, namely, RDB (Redis DataBase) and aof (Append only File).Official advice: Both options are open and backed up at the same time. The optional snapshot RDB is not high-endurance.RDB: At different points in time, the Redis stored data is generated and stored on the disk and

1. Download Redis NBSP can be installed or downloaded online, redis ① before the online installation needs to detect whether there is a RPM package does not exist, to see if the Yum online RPM package does not exist, it can only be downloaded manually or in other ways to download[[email protected] ~]# rpm-qa|grep redis[[email protected] ~]# yum L

transaction and discard all commands of the transaction block. If you are using watch monitoring, all monitoring will be canceled.Time Complexity: O (1)Return Value: Always Returns OK WatchFormat: wathc key [key...]Specifies the KEY (multiple keys) to be monitored. If this (or these) key is changed by other commands before the transaction is executed, the transaction will be interrupted.Time Complexity: O (1)Return Value: Always Returns OK ExecExecute all the commands in the transaction block.

expire the key, Instead, wait for the master node to expire it. When the master node expires the time of a key, use the Del command to notify all slave nodes to delete the key. However, Due to the master driver expiration time, at some point it is still possible for slave to retain some key that has actually expired because the master node does not provide the DEL command in a timely manner. In order to handle the slave node using its correct time to report a nonexistent key,

and specify the validity period of the KEY value.?? Setex twnmae 10 red;??4: setrange sets the substring of the value of the specified KEY.???? Setrange name 6 tangwen.org ?? Replace the value with tangwen.org. 5: mset sets the value of multiple keys at a time. 0 k is returned for success, and 0 is returned for failure; ? Mset key1 value1 key2 value26: getset? Set the new value of the key and return the old value of the key. 7: getrange gets the substring.? Getrange name 0, 6? Returns the subsc

jedis.set ("name", "He Jinghuan"); System.out.println (Jedis.get ("name"));//Run Result: He Jinghuan//delete key corresponding record Jedis.del ("name"); System.out.println (Jedis.get ("name"));//Run Result: null/** * mset equivalent to * jedis.set ("name", "Hejin Gyuan "); * Jedis.set ("Xvshu", "He Jinghuan"); */Jedis.mset ("name", "Hejingyuan", "Xvshu", "He Jinghuan"); System.out.println (Jedis.mget ("name", "Xvshu")); } }Output Result:Hejin

exist, it is overwritten when it is created.Return: if the field is created in the hash table, 1 is returned. 1. The existing field and the old value have been overwritten by the new value. 0 is returned.The procedure is as follows:Redis 127.0.0.1: 6379> hset uinfo_1 name tw(Integer) 1Redis 127.0.0.1: 6379> hget uinfo_1 name"Tw"Redis 127.0.0.1: 6379> hset uinfo_1 name tw2(Integer) 0Redis 127.0.0.1: 6379> hget uinfo_1 name"Tw2 ″2: hgetDescription: ret

Edis backup and restore, with the help of a third party tool, Redis-dump1, install Redis-dump The code is as follows Copy Code [Root@localhost tank]# yum install ruby rubygems ruby-devel/installation RubyGems and related packages[Root@localhost tank]# gem sources-a http://ruby.taobao.org///source, add Taobao, outside the source can not accesshttp://ruby.taobao.org/added to sourc

means of an atomic rename system call, which fails at the time of anything. Redis's RDB files are always available. At the same time. The Rdb file for Redis is also a part of the Redis master-Slave synchronization internal implementation. We can very clearly see that the RDB has its shortcomings, that is, once the database fails, then the data stored in our Rdb file is not entirely new. All the dat

Tags: help phone relationship God security Company Information BSP pollThe application of NoSQL, Redis/mongo1. Spiritual Journey I came to the company last November, with another colleague, made the company a mobile project of the public number, and then in order to promote the public number, planning there need us to do some activities, including Sweepstakes, vote. I didn't use

Source: comparison of various nosql databases in http://hi.baidu.com/eastdoor/blog/item/758d0e3eedb5d92471cf6c14.html Cassandra, MongoDB, CouchDB, Redis, Riak, HBaseCouchDBDevelopment language: ErlangMain advantages: data consistency and ease of useLicense: ApacheProtocol: HTTP/RESTApplicable: accumulated, less changed data. Or a large number of versions are required.Example: CRM, CMS systems. multi-site de

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