redis lua performance

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Redis Application Scenario redis Introduction 2 -- common basic types of redis vs Oracle advance queue performance comparison (I) redis vs Oracle advance queue performance comparison (II)

is similar to set. The difference is that set is not automatically ordered, while sorted set can sort members by providing an additional priority (score) parameter, it is insert-ordered, that is, automatic sorting. When you need an ordered and non-repeated list of sets, you can choose sorted set data structure. For example, Twitter's public timeline can be stored as score by posting time, in this way, the query is automatically sorted by time. Implementation Method: In

Redis (21): redis performance troubleshooting Manual

include performance problems that most people often encounter when using redis.Memory usage used_memory The used_memory field data in indicates the total memory allocated by the redis distributor, in bytes. The data on used_memory_human is the same as that on used_memory, which is displayed in m units for ease of reading.Used_memory is the total memory used by redis

Topsy Lua in Redis

First, IntroductionRedis has been learning for a while, and the basics are all fine. Starting today to write about some of the things that are related to Redis and Lua scripting, the Lua script is a good thing that can be run on any platform or embedded in most languages to extend its functionality. The Lua script is w

Development idea of using Lua script in Redis

"... key );Count = count + redis. call ("del", key );EndEndReturn count; It should be noted that scenario 2 can be used as an idea to use Lua scripts combined with redis built-in commands to implement specific function commands. The Mode key batch deletion here does not provide a good command, because if the number of keys is large, there will be serious

Development idea of using Lua script in Redis

keys = redis. call ("keys", KEYS [1]);Local count = 0;If (keys and (table. maxn (keys)> 0) thenFor index, key in ipairs (keys) doRedis. log (redis. LOG_NOTICE, "del"... key );Count = count + redis. call ("del", key );EndEndReturn count; It should be noted that scenario 2 can be used as an idea to use Lua scripts combi

CentOS6.4 install Openresty and Redis and easily read Redis data using LUA in Nginx

1. download Openresty and RedisOpenresty:wget http://openresty.org/download/ngx_openresty-1.4.3.6.tar.gzRedis:wget http://download.redis.io/releases/redis-2.8.6.tar.gz2. Install dependent packagesYum install-y gcc gcc-c++ readline-devel pcre-devel openssl-devel tcl Perl3, installation openrestyInstall Luajit Firstwget http://luajit.org/download/LuaJIT-2.0.2.tar.gztar zxvf luajit-2.0.2.tar.gzmakemake installexport luajit_lib=/ Usr/local/libexport luaji

Conversion between Lua data types and Redis data types

When Lua executes the Redis command through the call () or Pcall () function, the return value of the command is converted to the LUA data structure. Similarly, when the Lua script runs in the Redis built-in interpreter, the return value of the

Nginx+php+redis vs Nginx+lua+redis

script access, the connection is not closed until the end of the PHP processAfter I did the AB Pconnect, I found that there were several redis connections until I killed the php-fpm process, or by setting the timeout parameter in the redis.conf fileNginx+lua+redis Short Connection Connection poolThe previous article mentioned Nginx+

The idea of using LUA scripts in Redis

count;It is important to note that scenario two can be used as a way of thinking by combining the Redis built-in commands to implement commands for specific functions through LUA scripting. And here the Mode key bulk Delete is not a good command, because if the number of key is very large, there will be more serious performance problems.

StackExchange. Redis loads the Lua script for batch deletion and modification of fuzzy queries. stackexchange. redis

StackExchange. Redis loads the Lua script for batch deletion and modification of fuzzy queries. stackexchange. redisPreface Use StackExchange. redis does not directly use related methods to batch delete or modify Fuzzy queries. Although you can use Scan-related methods to perform fuzzy queries, for example, HashScan ("hashkey ", "* key *"), and then use the relev

Php+redis implementing the LUA scripting capabilities provided by Redis, redislua_php tutorial

Php+redis implements the LUA scripting capabilities provided by Redis, Redislua Phprequire_once"Predis-0.8/autoload.php"; $config[' schema '] = ' TCP '; $config[' Host ']= ' 192.168.1.7 '; $config[' port '] = 6379; $redis=NewPredis\client ($config); classWodeextendsPredis\command\scriptedcommand { Public functionGet

Introduction to the use of LUA scripts in conjunction with Redis databases _redis

Maybe you've heard of the scripting language embedded in Redis, but haven't you tried it yourself? This introductory tutorial will allow you to learn to use the powerful Lua language on your Redis server.Hello, lua!. Our first Redis Lua

How to Implement Lua script transaction in Redis?

In many aspects, Redis is similar to MySQL before InnoDB. Redis adopts a reasonable method to ensure data integrity (such as replication and AOF), and In many aspects, Redis is similar to MySQL before InnoDB. Redis adopts a reasonable method to ensure data integrity (such as replication and AOF), and In the past f

Redis Design and Implementation Learning Note-lua Script

Redis supports LUA scripts from 2.6, similar to the functionality of transactions, where multiple Redis commands can be executed by the Lua script atom. Redis provides the eval and Evalsha commands to execute LUA scripts.Create an

Php + Redis implements the lua script function provided by Redis, redislua

Php + Redis implements the lua script function provided by Redis, redislua How can I set a valid time for the redis value with lua? No existing method existsIf you want to implement the functionIn general, you can use insert or remove to increase or decrease the value of a

Redis integrates Lua script implementation and redislua script

Redis integrates Lua script implementation and redislua script Author: zhanhailiang Date: 2014-12-02Related Dependencies 1. Environment deployment Redis installation and configuration tutorial and phpredis extension installation test Redis installation and php Extension Install the phpredis module in Windows (the p

Lua-redis Redis Data (table) into JSON

Key,val is not a correspondence in the hash data obtained by Lua-redis. Data structures are as follows 1 Key1 2 Val1 3 Key2 4 Val2 To make it easier for other language programs to get formatted data, you need to convert it to JSON so that key and Val correspond, and the program makes the following modifications (LUA)

Support for Redis (vi) LUA scripting

Why Redis requires support for LUA scriptingWhen the application requires Redis to complete some features that are not supported by Redis commands, either extend the Redis client or even write C extension redis server. This greatl

Redis Performance Troubleshooting Manual (vii)

much information and clutter, you can specify the parameters of the info command to get the data under a single category. For example, entering the info Memory command will return only memory-related data.To quickly locate and resolve performance issues, here are 5 key data metrics that contain the performance issues that most people often encounter when using Redis.Memory Utilization Used_memoryThe Used_m

Nginx + lua + redis implement verification code anti-collection

Nginx + lua + redis implement verification code anti-collection I have introduced how to embed the lua module in nginx. Using nginx + lua can develop nginx business logic well and achieve high concurrency. The following describes how to use nginx + lua +

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