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Redis 基本搭建

链接：http://blog.itpub.net/28602568/viewspace-2120239/

标题：Redis 基本搭建

前言：

Redis是一个基于内存的高性能key-value数据库，数据都保存在内存中定期刷新到磁盘，以极高的读写效率而备受关注。

他的特点是支持各种数据结构，stirng,hashes, list,set,和sorted sets client端对于不同数据结构是使用不同的命令。

Redis服务器的daemon启动程序

redis-cli是Redis的客户端工具。关于redis-cl命令的参数说明见下表

redis-benchmark是Redis的性能测试工具

redis-check-dump dump.rdb 检查本地数据文件

redis-check-aof appendonly.aof 更新日志检查，加--fix参数为修复log文件

Redis 主要程序流程

安装步骤：

   wget http://download.redis.io/redis-stable.tar.gz    ---3.2.0版本  
   tar xvzf redis-stable.tar.gz  
   cd redis-stable  
   make  
   ps -ef|grep redis ---查看redis进程是否有启动  
   cp -p src/redis-server /usr/local/bin/  
   cp -p src/redis-cli /usr/local/bin/  

将redis.conf文件的daemonize参数改为yes，redis改为后台启动

   [root@localhost redis-stable]# grep daemonize redis.conf |grep -v "^#"  
   daemonize yes  
   [root@localhost redis-stable]# redis-server redis.conf --port 7777  /*默认端口6379，可通过redis-server --port更改端口*/  
   [root@localhost redis-stable]# ps -ef |grep redis|grep -v grep  
   root     20165     1  0 16:12 ?        00:00:00 redis-server 127.0.0.1:7777  
   [root@localhost redis-stable]#  

设置key --- set key和get key

   [root@localhost src]# redis-cli  
   127.0.0.1:7777> ping  
   PONG  
   127.0.0.1:7777> set mykey somevalue  
   OK  
   127.0.0.1:7777> get mykey  
   "somevalue"  
   127.0.0.1:7777>  

查看版本：

[root@localhost src]# redis-cli --version

redis-cli 3.2.0

[root@localhost src]# redis-server --version

Redis server v=3.2.0 sha=00000000:0 malloc=jemalloc-4.0.3 bits=64 build=47622ff85e6ad599

[root@localhost src]#

   [root@localhost redis-stable]# redis-cli  --help  
   redis-cli 3.2.0  
   
  
   Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]  
     -h       Server hostname (default: 127.0.0.1).  
     -p           Server port (default: 6379).  
     -s         Server socket (overrides hostname and port).  
     -a       Password to use when connecting to the server.  
     -r         Execute specified command N times.  
     -i       When -r is used, waits  seconds per command.  
                        It is possible to specify sub-second times like -i 0.1.  
     -n             Database number.  
     -x                 Read last argument from STDIN.  
     -d      Multi-bulk delimiter in for raw formatting (default: /n).  
     -c                 Enable cluster mode (follow -ASK and -MOVED redirections).  
     --raw              Use raw formatting for replies (default when STDOUT is  
                        not a tty).  
     --no-raw           Force formatted output even when STDOUT is not a tty.  
     --csv              Output in CSV format.  
     --stat             Print rolling stats about server: mem, clients, ...  
     --latency          Enter a special mode continuously sampling latency.  
     --latency-history  Like --latency but tracking latency changes over time.  
                        Default time interval is 15 sec. Change it using -i.  
     --latency-dist     Shows latency as a spectrum, requires xterm 256 colors.  
                        Default time interval is 1 sec. Change it using -i.  
     --lru-test   Simulate a cache workload with an 80-20 distribution.  
     --slave            Simulate a slave showing commands received from the master.  
     --rdb    Transfer an RDB dump from remote server to local file.  
     --pipe             Transfer raw Redis protocol from stdin to server.  
     --pipe-timeout  In --pipe mode, abort with error if after sending all data.  
                        no reply is received within  seconds.  
                        Default timeout: 30. Use 0 to wait forever.  
     --bigkeys          Sample Redis keys looking for big keys.  
     --scan             List all keys using the SCAN command.  
     --pattern     Useful with --scan to specify a SCAN pattern.  
     --intrinsic-latency  Run a test to measure intrinsic system latency.  
                        The test will run for the specified amount of seconds.  
     --eval       Send an EVAL command using the Lua script at .  
     --ldb              Used with --eval enable the Redis Lua debugger.  
     --ldb-sync-mode    Like --ldb but uses the synchronous Lua debugger, in  
                        this mode the server is blocked and script changes are  
                        are not rolled back from the server memory.  
     --help             Output this help and exit.  
     --version          Output version and exit.  
   
  
   Examples:  
     cat /etc/passwd | redis-cli -x set mypasswd  
     redis-cli get mypasswd  
     redis-cli -r 100 lpush mylist x  
     redis-cli -r 100 -i 1 info | grep used_memory_human:  
     redis-cli --eval myscript.lua key1 key2 , arg1 arg2 arg3  
     redis-cli --scan --pattern '*:12345*'  
   
  
     (Note: when using --eval the comma separates KEYS[] from ARGV[] items)  
   
  
   When no command is given, redis-cli starts in interactive mode.  
   Type "help" in interactive mode for information on available commands  
   and settings.  
   
  
   [root@localhost redis-stable]#  