啓動memcache的時候，報如下錯誤：
#/usr/local/bin/memcached -d -m 100 -p 11211 -u nobody -c 65535
/usr/local/bin/memcached: error while loading shared libraries: libevent-2.0.so.5: cannot open shared object file: No such file or directory
查看是否已安裝libevent
#locate libevent-2.0.so.5
/home/lynn/libevent-2.0.10-stable/.libs/libevent-2.0.so.5
/home/lynn/libevent-2.0.10-stable/.libs/libevent-2.0.so.5.0.1
/root/libevent-2.0.10-stable/.libs/libevent-2.0.so.5
/usr/local/lib/libevent-2.0.so.5
/usr/local/lib/libevent-2.0.so.5.0.1
# uname -a
Linux localhost.localdomain 2.6.32-279.el6.x86_64 #1 SMP Fri Jun 22 12:19:21 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
ldd /usr/local/bin/memcached
linux-vdso.so.1 => (0x00007fff6611e000)
libevent-2.0.so.5 => not found #查找不到該文件
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f228c5ff000)
libc.so.6 => /lib64/libc.so.6 (0x00007f228c26d000)
/lib64/ld-linux-x86-64.so.2 (0x00007f228c82d000)
#ln -s /usr/local/lib/libevent-2.0.so.5 /lib64/libevent-2.0.so.5
#ldd /usr/local/bin/memcached
linux-vdso.so.1 => (0x00007fff8e9ff000)
libevent-2.0.so.5 => /lib64/libevent-2.0.so.5 (0x00007fe494e34000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fe494c17000)
libc.so.6 => /lib64/libc.so.6 (0x00007fe494884000)
librt.so.1 => /lib64/librt.so.1 (0x00007fe49467c000)
/lib64/ld-linux-x86-64.so.2 (0x00007fe495087000)
ok，重新啓動memcache