Redis

Keep in mind that node.js is primarily used to build high-performance, highly scalable server and client applications, and it is geared toward "live Web".The goal of Node.js is to provide an "easy way to build scalable Web servers", which is

Redis is heavily used in distributed environments, and it becomes a problem to solve the locks in a distributed environment. For example, our current hand-travel program, server side is divided by Business module server, there are applications,

1, Redis-benchmarkRedis baseline information, Redis server performance detection Redis-benchmark-h localhost-p 6379-c 100-n 100000100 concurrent connections, 100,000 requests, detecting Redis server performance with host localhost port 6379

First, the replication of Redis: The configuration of the Master-slave mode in Redis is very simple, and the following list clearly explains the characteristics and advantages of REDIS replication. 1. The same master can synchronize multiple slaves.

>>memcachedAdvantages of memcached:The memcached can take advantage of multicore advantages, with a very high single-instance throughput of hundreds of thousands of QPS (depending on key, the byte size of value, and server hardware performance,

The story of PostgreSQL and its friends-RedisRead and write Redis directly in PostgreSQL.Many benefits, can reduce the complexity of application layer design, reduce the number of interactions, reduce Rt.Examples of application scenarios:.1. Improve

Keep doing the exercises today, the topic is https://github.com/Yixiaohan/show-me-the-code.question No. 0001: as an independent developer of the Apple Store App, do you want to make a limited-time promotion, generate an Activation code (or coupon)

This is often the case in daily development workProject A, you need to use RedisProject B, you also need to use Redis......The original silly on the server to install a few redis, through a different port number to useIn fact, Redis can be used with

About NoSQLBefore I introduce Redis, I'd like to know about NoSQL, not just SQL, which is a non-relational data store with Key/value key-value pairs. Existing NoSQL DB product: Redis/mongodb/memcached/hbase/cassandra/tokyo cabinet/voldemort/dynomite/

Problems encountered in traditional mysql+ memcached architecturesThe actual MySQL is suitable for massive data storage, through the memcached to load hot data to the cache, speed up access, many companies have used such a structure, but with the

Memcached and Redis , as the Key-value database of two Inmemory, have many common places in design and thought, and in many cases, functions and applications ( Used as a distributed cache server, etc. ) is also very similar, here put the two

The difference between Redis and memcachedProblems encountered in traditional mysql+ memcached architecturesThe actual MySQL is suitable for massive data storage, through the memcached to load hot data to the cache, speed up access, many companies

I. Unordered collectionSet operation, set set is a list that does not allow duplicates　　1.1 Sadd (name, values)# add elements to the collection that corresponds to name　　1.2 Smembers (name)# get the name corresponding to all members of the

Development tools1.Eclipse IDE: Using MAVEN project management, modular.2. Code generation: Through the interface mode simple configuration, automatically generate the corresponding code, currently includes three ways to generate (add and revise):

Redis supports many programming language clients, C, C #, C + +, Clojure, Common Lisp, Erlang, Go, Lua, Objective-c, PHP, Ruby, Scala, Even the more fashionable node. js, of course, is more than Java's client support. Redis's official list of Java

Implementation principle:1. Fetch one more piece of data per page of hbase data. Such as: pagination is 10 page, the first query hbase, take 10+1 bar data, and then the first and last rowkey data stored in Redis, Redis key is the user's token+url.

When I recently made a project, I wrote an event push scenario. Before the implementation of the job is to query the database to see if there is no latest news. This way is very not elegant, anyway I can not tolerate, because envy itself relies on

Work encountered a problem, is that there are some need to do a full table scan of the database, and the results are more relaxed, the total feel can find local optimization, such as temporarily save the calculation results.The first thing to think

Not much to say, directly on the dry goods!　　Attention:The Redis official does not have a Windows installation package for Redis, but on GitHub there are related。First, the RedisRelated, as follows: Https://github.com/ServiceStack/redis-windows/tree/

First, under Windows installation:https://github.com/MSOpenTech/redis/releases version 3.2.100Baidu Network disk : HTTPS://PAN.BAIDU.COM/S/1JI9G1XKAccording to the system, choose 32-bit or 64-bit (Zip) to download, extract to any directory to