redis persistence

Redis Persistence: Provides several different levels of persistence: one is an RDB and the other is aof. RDB persistence can generate a point-in-time snapshot of a dataset (Point-in-time snapshot) within a specified time interval. The AOF persists all the write commands that the server performs and restores the dataset

I. Introduction of RedisRedis is an advanced Key-value database. It is similar to memcached but the data can be persisted and the data types supported are rich. There are string linked list collections and ordered collections. Support for multiple sorting functions is also supported on the server-side compute set (difference). So Redis can also be viewed as a data structure server.All redis data is stored i

This is a creation in Article, where the information may have evolved or changed. Go get Github.com/alphazero/go-redisGo get Github.com/simonz05/godisGo get Github.com/garyburd/redigoGo get Github.com/gosexy/redisGo get Cgl.tideland.biz/redis At present these five kinds of Use of open Source Library Redigo GitHub Address:Https://github.com/garyburd/redigo Document Address:Http://godoc.org/github.com/garyburd/redigo/

the source zmalloc.h and zmalloc.c two files to achieve. Redis in order to facilitate the management of memory, after allocating a piece of memory, it will be the size of the memory block to the head of memory. As shown in the figure, Real_ptr is the pointer returned after Redis calls malloc. Redis the size of the memory block to the head, size occupies a known

represents the number of memory blocks allocated by the current program, and the size of the memory block is the subscript for that element. In the source code, this array is zmalloc_allocations. ZMALLOC_ALLOCATIONS[16] represents the number of memory blocks that have been allocated for a length of 16bytes. ZMALLOC.C has a static variable used_memory used to record the total amount of memory currently allocated. So, on the whole, Redis uses packaging

Brief introduction:Redis is an open-source, high-performance key-value system that can be used to cache or store data.Redis data can be persisted and supports multiple data types: string, list, hash (hash), set (set), and ordered set (sorted set).Can be a good complement to the relational database. It also offers a variety of client-side Python, Ruby, Erlang, and PHP that can be easily invoked.Persistence:Redis is a memory database (similar to memcache), excellent in data access efficiency, and

for a length of 16bytes. ZMALLOC.C has a static variable used_memory used to record the total amount of memory currently allocated. So, on the whole, Redis uses packaging mallc/free, which is much simpler than Memcached's memory management approach.3. Data Persistence supportAlthough Redis is a memory-based storage system, it natively supports the

good complement to the relational database. It provides clients such as Java,c/c++,c#,php,javascript,perl,object-c,python,ruby,erlang, which is convenient to use. Redis supports master-slave synchronization. Data can be synchronized from the primary server to any number of slave servers, from the server to the primary server that is associated with other slave servers. This enables Redis to perform single-

Redis is a key-value type of in-memory database, and Redis is more powerful than memcached. 1. Redis supports two methods of data persistence: snapshotting (snapshot) and Append-only file (append) 2, Redis not only supports simple key-value, but also supports list (list), se

improves write performance.4) Schema free,auto-sharding and so on. For example, some of the common document databases are support Schema-free, directly store JSON format data, and support functions such as auto-sharding, such as MongoDB.In the face of these different types of nosql products, we need to choose the most appropriate product based on our business scenario.Redis is best suited for all data in-momory scenarios, although Redis also provides

article is based on knowledge sharing attribution 2.5 Mainland China Welcome reprint, deduction or for commercial purposes, but must retain the signature of this article Mr. Mushroom (including links).Category: NET Framework, development experience Tags: quartz.net green channel: Good text to top concern my collection This article contact me Mr. MushroomFollow-4Fans-75 + plus attention00(Please comment on the article) «Previous: C # implementing Redis