Redis

1. redis安装

http://redis.io

tar -xzvf redis-3.0.0.tar.gz

cd redis-3.0.0

make && sudo make install

cd utils && sudo ./install_server.sh

Welcome to the redis service installer
This script will help you easily set up a running redis server

You must run this script as root. Sorry!
liutianping@liutianping:~/work/redis/redis-3.0.0/utils$ sudo ./install_server.sh
[sudo] password for liutianping:
Welcome to the redis service installer
This script will help you easily set up a running redis server

Please select the redis port for this instance: [6379]
Selecting default: 6379
Please select the redis config file name [/etc/redis/6379.conf]
Selected default - /etc/redis/6379.conf
Please select the redis log file name [/var/log/redis_6379.log]
Selected default - /var/log/redis_6379.log
Please select the data directory for this instance [/var/lib/redis/6379]
Selected default - /var/lib/redis/6379
Please select the redis executable path [/usr/local/bin/redis-server]
Selected config:
Port : 6379
Config file : /etc/redis/6379.conf
Log file : /var/log/redis_6379.log
Data dir : /var/lib/redis/6379
Executable : /usr/local/bin/redis-server
Cli Executable : /usr/local/bin/redis-cli
Is this ok? Then press ENTER to go on or Ctrl-C to abort.
Copied /tmp/6379.conf => /etc/init.d/redis_6379
Installing service...
System start/stop links for /etc/init.d/redis_6379 already exist.
Success!
/var/run/redis_6379.pid exists, process is already running or crashed
Installation successful!

2. redis-server启动log

12635:M 14 Aug 23:53:33.517 * Increased maximum number of open files to 10032 (it was originally set to 1024).
12635:M 14 Aug 23:53:33.517 # Creating Server TCP listening socket *:6379: bind: Address already in use
1131:M 14 Aug 23:55:13.960 * Increased maximum number of open files to 10032 (it was originally set to 1024).
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ Redis 3.0.0 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) Running in standalone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379
| `-._ `._ / _.-' | PID: 1131
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | http://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'

1131:M 14 Aug 23:55:13.996 # Server started, Redis version 3.0.0
1131:M 14 Aug 23:55:13.996 # 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.
1131:M 14 Aug 23:55:13.996 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.
1131:M 14 Aug 23:55:13.996 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
1131:M 14 Aug 23:55:13.996 * The server is now ready to accept connections on port 6379