Linux under memcached installation __linux

memcached Installation

1. Download, memcached need to install first libevent

Memcached's download Address: Http://www.danga.com/memcached/dist/memcached-1.2.6.tar.gzs

Http://memcached.googlecode.com/files/memcached-1.4.5.tar.gz Latest edition
Libevent's download Address: http://www.monkey.org/~provos/libevent-1.2.tar.gz

http://www.monkey.org/~provos/libevent/

#cd/usr/local
#mkdir memcached
#mkdir libevent

2. Install Libevent

# tar XZVF libevent-1.2.tar.gz
# CD libevent-1.2
#./configure--prefix=/usr/local/libevent
# make
# make Install

Check to see if the installation was successful:

#cd/usr/local/libevent/lib

If there are libevent-1.3c.so.1 libevent-1.3c.so.1.0.3 libevent.a libevent.la libevent.so These files exist, the installation is successful

3. Install memcached

# tar XZVF memcached-1.2.6.tar.gz
# CD memcached-1.2.6
#./configure--with-libevent=/usr/local/libevent--prefix=/usr/local/memcached
# make
# make Install

Check to see if the installation was successful:

#cd/usr/local/memcached/bin

If memcached memcached-debug These 2 files exist, the installation is successful

4. Implementation

#cd/usr/local/memcached/bin
#./memcached-h

If it appears:
1. memcached 1.2.6
2.-P TCP Port number to listen on (default:11211)
3.-U UDP port number to listen on (default:0, off)
4-S UNIX socket path to listen on (disables network support)
5. L interface to listen on, the default is Indrr_any
6.-D Run as a daemon
7.-R Maximize Core file limit
8-U assume identity of (only when run as root)
9.-M max memory to use for items in megabytes, default is MB
-M return error on memory exhausted (rather than removing items)
-C Max simultaneous connections, default is 1024
-K Lock down all paged memory
-V Verbose (print errors/warnings while in event loop)
-VV very verbose (also print client commands/reponses)
-H Print this help and exit
I-I print memcached and libevent license
-B Run a managed instanced (mnemonic:buckets)
-P Save PID in, only used with-d option
-F Chunk size growth factor, default 1.25
-N minimum space allocated for key+value+flags, default 48

Description The installation was successful and the path was configured correctly.

There may be:

Memcached:error while loading shared libraries:libevent-1.2.so.1:cannot open Shared object file:no such file or direct Ory

Description did not find the file: libevent-1.2.so.1

Solution:

First step. To view the next Lib path:
[Farman@localhost bin]$ Ld_debug=libs/usr/local/memcached/bin/memcached-v
31386:find library=libevent-1.2.so.1 [0]; Searching
31386:search Cache=/etc/ld.so.cache
31386:search path=/lib/tls/i686/sse2:/lib/tls/i686:/lib/tls/sse2:/lib/tls:/lib/i686/sse2:/lib/i686:/lib/sse2:/ lib:/usr/lib/tls/i686/sse2:/usr/lib/tls/i686:/usr/lib/tls/sse2:/usr/lib/tls:/usr/lib/i686/sse2:/usr/lib/i686:/ Usr/lib/sse2:/usr/lib (System search Path)
31386:trying file=/lib/tls/i686/sse2/libevent-1.2.so.1
31386:trying file=/lib/tls/i686/libevent-1.2.so.1
31386:trying file=/lib/tls/sse2/libevent-1.2.so.1
31386:trying file=/lib/tls/libevent-1.2.so.1
31386:trying file=/lib/i686/sse2/libevent-1.2.so.1
31386:trying file=/lib/i686/libevent-1.2.so.1
31386:trying file=/lib/sse2/libevent-1.2.so.1
31386:trying file=/lib/libevent-1.2.so.1
31386:trying file=/usr/lib/tls/i686/sse2/libevent-1.2.so.1
31386:trying file=/usr/lib/tls/i686/libevent-1.2.so.1
31386:trying file=/usr/lib/tls/sse2/libevent-1.2.so.1
31386:trying file=/usr/lib/tls/libevent-1.2.so.1
31386:trying file=/usr/lib/i686/sse2/libevent-1.2.so.1
31386:trying file=/usr/lib/i686/libevent-1.2.so.1
31386:trying file=/usr/lib/sse2/libevent-1.2.so.1
31386:trying file=/usr/lib/libevent-1.2.so.1
31386:
/home/farman/cacheinstall/bin/memcached:error while loading shared libraries:libevent-1.2.so.1:cannot open shared Object File:no such file or directory

Step two. It's OK to copy libevent-1.3c.so.1 to any one of the listed Lib.
or soft links
[Farman@localhost lib]$ su Root
Password:
[Root@localhost lib]# ln-s/home/farman/install/lib/libevent-1.2.so.1/usr/lib/libevent-1.2.so.1

To start the service:
[Root@localhost lib]# exit
Cannot start with root

Front start test
[Farman@localhost bin]#./memcached-m 10-p 12000-c 256-vv

Background boot
[Farman@localhost bin]#./memcached-d-M 10-p 12000-c 256-p/tmp/memcached.pid
./memcached-d-M 128-u root-l 127.0.0.1-p 11211-c 64-p/tmp/memcached.pid
Parameter description:

The-D option is to start a daemon
-M is the amount of memory allocated to Memcache, in megabytes, I am 10MB
-U is the user running memcache, I am here root
-L is a listening server IP address
-P is the port to set memcache listening, preferably over 1024 ports
The-c option is the maximum number of concurrent connections to run, the default is 1024, according to the amount of load on your server to set
-P is to set the PID file to save Memcache