Redis - 随笔分类 - huey2672

Redis - 发布/订阅模式

摘要：Redis 提供了一组命令可以让开发者实现 “发布/订阅” 模式。“发布/订阅” 可以实现进程间的消息传递，其原理是这样的： “发布/订阅” 模式中包含两种角色，分别是发布者和订阅者。订阅者可以订阅一个或若干个频道（channel），而发布者可以向指定的频道发送消息，所有订阅此频道的订阅者都会收到此阅读全文

posted @ 2016-07-31 17:32 huey2672 阅读(678) 评论(0) 推荐(0)

Redis - 事务

摘要：Redis 中的事务是一组命令的集合。事务同命令一样都是 Redis 的最小执行单位，一个事务中的命令要么都执行，要么都不执行。事务的应用非常普遍，如银行转账过程中 A 给 B 汇款，首先系统从 A 的账户将钱划走，然后向 B 的账户增加相应的金额。这两个不走必须属于同一个事务，要么全都执行要么全都阅读全文

posted @ 2016-07-10 20:17 huey2672 阅读(241) 评论(0) 推荐(0)

Redis - 排序

摘要：SORT 命令格式 SORT key [BY pattern] [LIMIT offset count] [GET pattern [GET pattern ...]] [ASC|DESC] [ALPHA] [STORE destination] 基本用法 SORT 命令可以对列表类型、集合类型和有阅读全文

posted @ 2016-07-09 00:37 huey2672 阅读(886) 评论(0) 推荐(0)

Redis - HyperLogLogs

摘要：A HyperLogLog is a probabilistic data structure used in order to count unique things (technically this is referred to estimating the cardinality of a 阅读全文

posted @ 2016-07-07 11:09 huey2672 阅读(633) 评论(0) 推荐(0)

Jedis - hello world

摘要：Maven Dependency: redis.clients jedis 2.7.2 jar compileUse:Jedis jedis = new Jedis("127.0.0.1", 6379);jedis.set("foo", "bar");String va... 阅读全文

posted @ 2015-09-29 14:48 huey2672 阅读(222) 评论(0) 推荐(0)

Redis 命令 - Server

摘要：BGREWRITEAOFAsynchronously rewrite the append-only fileBGSAVEAsynchronously save the dataset to diskCLIENT KILL [ip:port] [ID client-id] [TYPE normal|... 阅读全文

posted @ 2015-09-26 13:48 huey2672 阅读(459) 评论(0) 推荐(0)

Redis 命令 - Connection

摘要：AUTH passwordAuthenticate to the serverMore:http://redis.io/commands/auth,http://www.redis.cn/commands/auth.htmlECHO messageEcho the given string127.0... 阅读全文

posted @ 2015-09-26 11:40 huey2672 阅读(453) 评论(0) 推荐(0)

Redis 命令 - Transactions

摘要：DISCARD Discard all commands issued after MULTI More: http://redis.io/commands/discard, http://www.redis.cn/commands/discard.html EXEC Execute all com 阅读全文

posted @ 2015-09-25 14:50 huey2672 阅读(278) 评论(0) 推荐(0)

Redis 命令 - Sorted Sets

摘要：ZADD key score member [score member ...]Add one or more members to a sorted set, or update its score if it already exists127.0.0.1:6379> ZADD foo 1 on... 阅读全文

posted @ 2015-09-25 14:23 huey2672 阅读(454) 评论(0) 推荐(0)

Redis 命令 - Sets

摘要：SADD key member [member ...]Add one or more members to a set127.0.0.1:6379> SADD foo hello(integer) 1127.0.0.1:6379> SADD foo world(integer) 1127.0.0.... 阅读全文

posted @ 2015-09-25 09:56 huey2672 阅读(411) 评论(0) 推荐(0)

Redis 命令 - Hashs

摘要：HDEL key field [field ...]Delete one or more hash fields127.0.0.1:6379> HSET book.1 title helloworld(integer) 0127.0.0.1:6379> HEXISTS book.1 title(in... 阅读全文

posted @ 2015-09-24 21:00 huey2672 阅读(343) 评论(0) 推荐(0)

Redis 命令 - Lists

摘要：BLPOP key [key ...] timeoutRemove and get the first element in a list, or block until one is availableMore:http://redis.io/commands/blpop,http://www.r... 阅读全文

posted @ 2015-09-24 20:44 huey2672 阅读(339) 评论(0) 推荐(0)

Redis 命令 - Strings

摘要：APPEND key value Available since 2.0.0, Time complexity: O(1). Append a value to a key More: http://redis.io/commands/append, http://www.redis.cn/comm 阅读全文

posted @ 2015-09-24 20:07 huey2672 阅读(331) 评论(0) 推荐(0)

Redis 命令 - Keys

摘要：DEL key [key ...] Delete a key DUMP key Return a serialized version of the value stored at the specified key. EXISTS key Determine if a key exists EXP 阅读全文

posted @ 2015-09-24 15:25 huey2672 阅读(275) 评论(0) 推荐(0)

Redis - 环境的安装配置

摘要：Redis 下载安装步骤：下载 redis 源码：[huey@huey-K42JE ~]$wget http://download.redis.io/releases/redis-x.y.z.tar.gz解压文件：[huey@huey-K42JE ~]$tar xzf redis-x.y.z.tar... 阅读全文

posted @ 2015-09-24 14:29 huey2672 阅读(298) 评论(0) 推荐(0)

随笔分类 - Redis