Redis setup and Configuration

Redis is a key-value storage system. Similar to memcached, memcached supports more storage value types, including string, list, set, and zset) and hash (hash type ). These data types support push/pop, Add/Remove, Intersection Set and difference set, and more abundant operations, and these operations are atomic. On this basis, redis supports sorting in different ways. Like memcached, data is cached in the memory to ensure efficiency. The difference is that redis periodically writes the updated data to the disk or writes the modification operation to the append record file, and on this basis implements master-slave (master-slave) synchronization.

Redis is a high-performance Key-value database. The emergence of redis largely compensates for the shortage of key/value storage such as memcached, and can play a good complementary role in relational databases in some cases. It provides clients such as Java, C/C ++, C #, PHP, JavaScript, Perl, object-C, Python, Ruby, and Erlang for ease of use.

I am using centos5.4, and the GCC and other environments have been configured.

1. Install TCL because redis depends on TCL.

Yum-y install TCL

2. Install redis

Download redis.2.8.13.tar.gz

Music redis-2.8.13.tar.gz/tmp

CD/tmp/
Ls
Tar-zxvf redis-2.8.13.tar.gz

CD redis-2.8.13

Make & make install

You can check readme during installation. This is a good habit.

./Runtest test found no problem

MV redis. CONF/etc/redis. conf

Running and disabling 3redis

Run redis-server/etc/redis. conf

Disable redis-Pencil Shutdown

4redis configuration file details

Daemonize yes # Run redis in daemon mode later

Pidfile "/var/run/redis. PID" # Run on apsaradb for redis later. The default PID file path is/var/run/redis. PID.

Port 6379 # default port

Bind 127.0.0.1 # All IP addresses of the local machine are bound by default. To ensure security, you can only listen to intranet IP addresses.

Timeout 300 # client timeout settings, in seconds

Loglevel verbose # Set the log level. Four levels are supported: Debug, notice, verbose, and warning.

Logfile stdout # log record method. The default value is standard output. Logs does not write files and is output to an empty device/DEB/null.

Logfile "/usr/local/redis/var/redis. log" # You can specify the log file path

Databases 16 # Number of enabled databases

Save 900 1

Save 300 10

Save 60 10000

Create a local database snapshot in the format of save **

1 write operation in 900 seconds

10 write operations performed within 300 seconds

10000 write operations performed within 60 seconds

Rdbcompression yes # enable lzf compression or set it to no

Dbfilename dump. RDB # Name of the local snapshot Database

Dir "/usr/local/redis/var/" # local snapshot database storage directory

Requirepass Zhanghe # Set the redis database connection password

Maxclients 10000 # maximum number of client connections at the same time, 0 is unlimited

Maxmemory 1024 MB # set the maximum memory used by redis. The value must be smaller than the physical memory.

Appendonly yes # Enable logging, equivalent to MySQL BINLOG

Appendfilename "appendonly. aof" # log file name. Note: it is not a directory path.

Appendfsync everysec # executes synchronization every second. Two other parameters always and no are generally set to everysec, which is equivalent to writing MySQL transaction logs.

5. Verification

Redis-cli-A Zhanghe note-A is followed by the password of the redis database. If the password is incorrect, the password can be entered, but the operation is not allowed. The verification fails.

Redis-cli-A redis
Wagner. 0.0.1: 6379>
Wagner. 0.0.1: 6379>
127.0.0.1: 6379> 127.0.0.1: 6379> s127.0.0.1: 6379> se127.0.0.1: 6379> set127.0.0.1: 6379> set 127.0.0.1: 6379> set s127.0.0.1: 6379> set ss127.0.0.1: 6379> set SS 127.0.0.1: 6379> set SS z127.0.0.1: 6379> set SS zh127.0.0.1: 6379> set SS zha127.0.0.1: 6379> set SS zhan127.0.0.1: 6379> set SS zhang127.0.0.1: 6379> set SS zhangh127.0.0.1: 6379> set SS Zhanghe
OK
127.0.0.1: 6379> 127.0.0.1: 6379> g127.0.0.1: 6379> ge127.0.0.1: 6379> get127.0.0.1: 6379> Get 127.0.0.1: 6379> Get s127.0.0.1: 6379> Get Ss
"Zhanghe"

So far, the configuration is complete

 

 

 

 

This article is from the "Zhanghe" blog, please be sure to keep this source http://9206668.blog.51cto.com/9196668/1533341