Redis Introduction
Remote DIctionary server, which is completely open source free, written in C, and following the BSD protocol, is a high-performance (KV) distributed memory database that runs on memory and supports persistent NoSQL databases, is
Use the following command to update the Yum source and install the Redis service:
RPM-UVH http://mirrors.kernel.org/fedora-epel/6/i386/epel-release-6-8.noarch.rpm
Yuminstall-y Redis
Serviceredis start
Chkconfigredis on
After the installation, we
Redis more than 3.0 support clusters, because the cluster needs ruby support, you need to install the Ruby environment and download the Communication Management Pack
Ruby Environment Installation
Redis Command Reference:
Waving sway sprinkle write hundreds of words, suddenly found himself is written no others good, original or reprint it.
I will write a few of the better blog address to everyone, and then write some of their own problems and solutions to solve
Redis's aof persistence strategy is to record every command sent to the Redis server and save it to a aof file on your hard disk, like a log file, and a command to record one.
aof Settings
The location of the AoF file is the same as the location of
Redis master-slave replication process
When slave is configured, slave establishes a connection with master and then sends the Sync command. Whether it is the first connection or reconnection, master initiates a background process, saves the DB
Shiro is often used in the project to do permission authentication and authorization functions, when the user authentication is successful, the first time to access a restricted resource, Shiro will load all the user access to the identity of the
Hset key field value
Function: Set the value of the filed field in the key to value
Note: If there is no field field, add directly, if any, overwrite the value of the original Field field
Hmset key field1 value1 [field2 value2 field3 value3 ...
Client implementations of Redis I chose Jedis.
The spring framework contains support for Redis, which is actually a layer of encapsulation that allows us to use boilerplate to simplify code or choose not to use the template provided by spring and to
What is NoSQL?
NoSQL is the database solution to solve a series of problems, such as high concurrency, high availability, high scalability, and big data storage.
NOSQL, called a non-relational database, whose full name is not the only SQL. It can
String TypeSet/get is the most common and simplest operation. Key value pair;
[Plain]View plain copy 192.168.159.130:7000> set num 1 OK 192.168.159.130:7000> get num "1" 192.168.159.130:7000> ; Get Age (Nil)
SETNX differs from set if the key value
This article is for you to explain the Redis 2.8.18 installation error error:jemalloc/jemalloc.h:no such file or directory solution, interested students reference. Error Description
Installing the Redis 2.8.18 times
Redis is an in-memory database that supports persistence, which means that Redis often needs to synchronize in-memory data to disk to ensure persistence. Redis supports two persistence modes, one is snapshotting (snapshot) is the default, and the
* Features * Key-value
Java map:string value = Map.get ("key") Python dict:dictionary["key"] value ...
BitMaps Bitmap bron Filter Hyperloglog Ultra Small Memory unique value Count GEO Geographic information positioning speed fast
10w OPS is the
Redis is now a popular cache database, and it is generally found that it can store strings (string), hash tables (hashes), lists, collections (set), ordered collections (sorted set), and so on. Redis is a Key-value store, and value can contain many
Base 2.8.7
Redis is a large dictionary that contains a lot of key-value pairs, and this dictionary supports a very rich set of value that can be used for strings, hash tables, lists, collections, and ordered sets, based on these types of rich value,
Redis is a large dictionary that contains a lot of key-value pairs, and this dictionary supports a very rich set of value that can be used for strings, hash tables, lists, collections, and ordered sets, based on these types of rich value, extending
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