Use Memcache or Redis to limit the maximum number of votes for a user or an IP user over a period of time

Enable each user to vote up to 5 times within 10 minutes of a sitefunction isfrequently ($key) { $t = 60*10; $n = 5; $mem = new Memcache (); $mem->connect (' 127.0.0.1 ', ' 11211 '); if (! $mem) { echo ' memcache connection

"Reprint" in Java using Jedis operation Redis

1 package com.test; 2 3 Import Java.util.HashMap; 4 Import Java.util.Iterator; 5 Import Java.util.List; 6 Import Java.util.Map; 7 8 Import Org.junit.Before; 9 Import Org.junit.Test; Ten import Redis.clients.jedis.Jedis; public class Testredis {

Beginner Redis (1) Installing Redis under--windows

Redis Download URL: https://github.com/dmajkic/redis/downloadsSelect the number of bits for your machine to downloadMine is 32 bit, and then I picked a newer version to downloadUnzip after downloadOpen cmd into the corresponding directory and run

Redis Learning Redis installation, class library and demo

First, Redis the installationA. System Environment and descriptionThe Linux operating system chooses Ubuntu, and the Redis version chooses the latest stable version of 2.8.9. The client chooses the Java version of Redis JedisB. Installation

Redis Link Linked list structure

Role: Inserting values into the link headerRpop KeyFunction: Returns and deletes the chain footer elementLrange Key Start stopFunction: Returns the element in the list [Start, stop]Rule: The left number starts at 0 and the right number starts at

Nginx +lua +redis Building Automatic Cache system

First, Nginx Environment constructionThe first stepDownload luajit-2.0.4.tar.gz http://luajit.org/download/LuaJIT-2.0.4.tar.gzInstall make && make installStep TwoDownload Nginx-dependent modules:Openssl-1.0.2e.tar.gz

Turn: Redis configured as Service system services

In Linux, when a program is configured as a service, you can use service commands to manage system services such as start (start), ( stop stop), restart (restart), and so on. The Redis default is not configured as a system service after installation,

Nginx-tomcat load balancing redis-session sharing, static resource separation

Basic Environment:redis-2.8apache-tomcat-6.0.41nginx1.6.21,redis configuration 1, configuring the Redis access passwordFind the redis.conf in the Redis directory and unpack the Requirepass comment (this property is used to set the password).Such

First knowledge of Redis

NoSQL Introduction NoSQL (not just SQL), meaning anti-SQL movement, is a new revolutionary movement of the database. It refers to the Philippine relational database. With the rise of internet web2.0 website, the traditional relational database

Simple additions and deletions of the five data types of Redis

Have a nice smileThe tortoise was wounded. Let the snail buy medicine. It's been 2 hours. The snail hasn't come back yet. Turtle nasty scold: no fucking come back I'm dead! Then came the voice of the Snail outside the door: You say the mother said I

Redis default configuration file redis.conf detailed

# Redis configuration File Sample # Note on units:when memory size is needed, it's possible to specifiy# it in the usual form of 1k 5GB 4M an D so forth:## 1k + bytes# 1kb = 1024x768 bytes# 1m = 1000000 bytes# 1mb = 1024*1024 bytes# 1g = 10000 00000

Redis data type operation (i)--string

1. SetFormat: Set ' key ' ' value 'Adds a string-type key-value pair.2. GetFormat: Get ' key 'Gets the string type value value corresponding to key, and nil is returned if it is not found.3. MsetFormat: Mset ' key1 ' value1 ' key2 ' value2 ' ...Adds

Zabbix Automatic Discovery Monitoring Redis

1: Write the automatic discovery script on the Zabbix_agentd side, mainly to automatically discover the monitoring port of Redis, the script is as follows:vim/usr/local/zabbix/zabbix_discover_redis.sh#!/bin/sh#zhuangweihong 20160419 Zabbix Discover

Redis data type Operations (ii)--hash

1. HsetFormat: Hset ' name ' key ' value 'Add a named Name object that contains Key-value key-value pairs.2. HgetFormat: Hget ' name ' key 'Gets the value that is named the name object key.3. HsetnxFormat: hsetnx ' name ' key ' value 'Add a name to

Redis Advanced Utility Features

1. SecuritySets the password to be used before any other specified client connection is made. Warning: Because Redis is very fast, an external user can make a 150k password attempt in a second on a better server, which means that a very strong

The construction and practice of Redis cluster

Redis ClusterFirst, redis-cluster designRedis clusters are built in a variety of ways, such as using zookeeper, but after Redis 3.0, the Redis-cluster cluster is supported, Redis-cluster uses a non-central structure, each node holds the data and the

CENTOS7 Installation Configuration redis-3.0.0

I. Installing the necessary packagesYum Install GCCTwo. Install under Linux#下载wget Http://download.redis.io/releases/redis-3.0.0.tar.gztar zxvf redis-3.0.0.tar.gzcd redis-3.0.0# If no parameters are added, Error make MALLOC=LIBC under LinuxAfter

The Redis Info command is detailed

Returns a variety of information and statistics about Redis servers in an easy-to-interpret (parse) and easy-to-read format.Given an optional parameter section, you can have the command return only a portion of the information: Server : General

Redis implementations focus on relationships

Recently, the use of relational database to achieve the user's attention, so think of a different way of thinking, using Redis to achieve the user's attention relationship.After taking a look at some of the data structures of Redis, I think we can

Redis Learning Note (7)---compression dictionary zipmap

ZipmapIn the Hashtable implementation, Redis introduces a ZIPMAP data structure that is guaranteed to be stored with less memory when the Hashtable is created and the elements are small, while the efficiency of the query is not greatly

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