linux 安装 redis
Redis Linux 安装由于 Redis 并没有发布 windows 的官方版本,windows 的安装使用不作介绍,只介绍 Linux 下的安装使用。 下载地址:https://github.com/dmajkic/redis/downloads 下载最新版本
然后tar, make,即可。(make前,如果确认自己的测试机是32位linux,在src/Makefile文件中的头部加上CFLAGS= -march=i686
redis 2.8.9 安装报错
Jimmy 2013-01-21 11:53
zmalloc.h:50:31: error: jemalloc/jemalloc.h: No such file or directory
zmalloc.h:55:2: error: #error "Newer version of jemalloc required"
make: *** Error 1
make: Leaving directory `/data0/src/redis-2.6.2/src'
make: *** Error 2
解决办法是:
make MALLOC=libc
zmalloc.h:50:31: fatal error: jemalloc/jemalloc.h: No such file or directory
#include
^
compilation terminated.
make: *** Error 1
解决办法还是:
make MALLOC=libc
启动 server: 根目录下执行 nohup src/redis-server redis.conf &
如果端口有冲突改下 redis.conf 里面的 port 配置
启动客户端 src/redis-cli 端口有变化 src/redis-cli -p 6479
测试下
redis 127.0.0.1:6479> set test test
OK
redis 127.0.0.1:6479> get test
"test"
与你熟悉的关系型数据库一致,Redis有着相同的数据库基本概念,即一个数据库包含一组数据。
典型的数据库应用案例是,将一个程序的所有数据组织起来,使之与另一个程序的数据保持独立。 在Redis里,数据库简单的使用一个数字编号来进行辨认,默认数据库的数字编号是0。如果你想切换到一个不同的数据库,你可以使用select命令来实现。在命令行界面里键入select 1,Redis应该会回复一条OK的信息,然后命令行界面里的提示符会变成类似redis 127.0.0.1:6379>这样。如果你想切换回默认数据库,只要在命令行界面键入select 0即可。
为了方便,我们把
redis-server,和 redis-cli 提取出来
# mkdir -p redis/bin
# mkdir -p redis/etc
# cp /usr/share/redis-2.8.9/src/redis-server /usr/share/redis-2.8.9/src/redis-cli /usr/local/redis/bin/
# cp /usr/share/redis-2.8.9/redis.conf /usr/local/redis/etc/
启动redis-server
# ./redis-server
11 May 18:09:10.311 # Warning: no config file specified, using the default config. In order to specify a config file use ./redis-server /path/to/redis.conf
11 May 18:09:10.312 * Increased maximum number of open files to 10032 (it was originally set to 1024).
_._
_.-``__ ''-._
_.-`` `.`_.''-._ Redis 2.8.9 (00000000/0) 64 bit
.-`` .-```.```\/ _.,_ ''-._
( ' , .-`| `, ) Running in stand alone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379
| `-._ `._ / _.-' | PID: 7419
`-._ `-._`-./_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | http://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
11 May 18:09:10.313 # Server started, Redis version 2.8.9
11 May 18:09:10.313 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
11 May 18:09:10.314 * The server is now ready to accept connections on port 6379
很明显,这不符合我们的需求,我们需要让他后台打开,
vi /usr/local/redis/etc/redis.conf
将行 daemonize no 改为 daemonize yes
再次执行redis-server /usr/local/redis/etc/redis.conf
# redis-server /usr/local/redis/etc/redis.conf
我们再登陆测试一下
# redis-cli
redis 127.0.0.1:6479> set test test
OK
redis 127.0.0.1:6479> get test
"test"
到此Redis 安装成功.
Redis 客户端测试
[*]Java 官方推荐客户端 Jedis
import java.util.Date;
import redis.clients.jedis.Jedis;
public class RedisTest {
public static void main(String[] args) {
long start = System.currentTimeMillis();
String host = "127.0.0.1";
int port = 6479, timeout = 30000;
Jedis jedis = new Jedis(host, port, timeout);
for (int i = 1; i errstr);
redisFree(c);
} else {
printf("Connection error: can't allocate redis context\n");
}
exit(1);
}
get_time();
printf("test_bach start");
for (int i = 1; i
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