memcached是优秀的开源高性能分布式内存对象缓存系统。在Linux系统下编译安装后没有自动注册为系统服务。另外由于memcached基于libevent库，该库默认的编译安装位置为/usr/local/lib目录，该目录又不是多数linux发行版的默认库加载路径。因此在执行memcached之前需要修改默认加载路径，将该路径包含进去。虽然只需要设置一次但毕竟要设置，很麻烦。如果你又希望存放在该路径下的库不被程序自动搜寻到，就不能使用该方法。那么怎么才能有个完全的方法来解决呢？
解决方法：
既然memcached没有被注册为系统服务，那我们手动地去注册。注册系统服务需要编写启动脚本，一般要实现三个方法，分别是：start、stop和restart。并且该脚本要放置在/etc/init.d/目录中。下面是我写的服务脚本（脚本需要以root权限编写）：
#chkconfig: 345 60 60 #description: This Service is from memcached \ # which is high performance object cache system #!/bin/sh export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH memcached_process_name="memcached" start(){ echo "Starting Memcached Service with Port 11211" # note that the character ` is not single quotation, \ # It is the left character of "1" key in your keyboard memcached_pid_list=`pidof $memcached_process_name` if test -n "$memcached_pid_list" then echo "Fail To Launch Memcached, Since It Has Already Started" exit 1 else echo "Launching memcached with MaxMemory 64MB" /usr/local/bin/memcached -l 0.0.0.0 -p 11211 -m 64 -d -u root echo "Launch Memcached Successfully" exit 0 fi; } stop(){ echo "Stopping Memcached Service..." memcached_pid_list=`pidof $memcached_process_name` if test -n "$memcached_pid_list" then echo "Find Memcached Process(es), Start To End Them" kill -9 $memcached_pid_list if test "$?" = "0" then echo "Success to Terminate All Memcached Processes" else echo "Can Not Terminate All Memcached Processes" fi; echo {1}quot;Finished Stopping Memcached Service" exit 0 else echo "Can Not Find Any Memcached Process, Fail To Stop Service" exit 1 fi; } case "$1" in start) start ;; stop) stop ;; restart) stop #sleep 3 seconds to wait for process's exit sleep 3 start ;; *) echo {1}quot;Usage:$0 {start|stop|restart}" exit 2 esac
编写完毕后。对其赋予755权限，即rwxr-xr-x（文件所有者具有读写执行权限，同组用户具有只读和执行权限，其他用户具有只读和执行权限）：
[root@lxp2 init.d]# chmod 755 memcached