DBA Blog

用nc命令快速清空memcache

e.g 

   memcache的端口是11211

echo "flush_all" | nc 192.168.1.60 11211

给所有的朋友们拜年啦！

祝大家新年快乐！虎虎生威！

修改系统最大文件句柄数
# vi /etc/sysctl.conf
加入一行 fs.file-max = 1491124, 然后在命令行中输入: sysctl -p, 使其生效
#cat /proc/sys/fs/file-max 查看生效结果
修改系统open files参数
# vi /etc/security/limits.conf
加入一行 *                hard    nofile          204800
# vi /root/.bashrc
为了让设置永久生效、修改.bashrc文件、加入一行 ulimit -HSn 204800
#lsof -p 进程ID

注意：修改完以后如果要让应用服务生效，必须重启应用服务。

./configure --with-poll_module --with-http_ssl_module --with-http_gzip_static_module --with-http_perl_module --with-md5=/usr/include --with-md5-asm --with-sha1=/usr/include --with-sha1-asm
make
make install

openssl req -days 3650 -nodes -new -x509 -keyout ca.key -out ca.pem -config OpenSSL.cnf

openssl req -days 3650 -nodes -new -keyout cert.key -out cert.pem -config OpenSSL.cnf

openssl ca -days 3650 -out cert.pem -in cert.pem -extensions server -config OpenSSL.cnf

worker_processes 10;

events {
  use epoll;
  worker_connections 1024;
}

http {
    gzip  on;
    gzip_static on;
 
    gzip_comp_level     9;
    gzip_min_length     1k;
    gzip_proxied        any;
    gzip_types          text/plain text/xml application/xml application/xml+rss;
    #gzip_disable        "MSIE [1-6] \.";
    #gzip_vary           on;
}

location ~ \.php$ {
    root           html;
    fastcgi_pass   unix:/tmp/php-fcgi.sock;
    fastcgi_index  index.php;
    fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
    fastcgi_param  PATH_INFO        $fastcgi_path_info;
    fastcgi_param  PATH_TRANSLATED  $document_root$fastcgi_path_info;
    include        fastcgi_params;
}

mkdir /var/tmp/eaccelerator

[eAccelerator]
zend_extension_ts = "/usr/lib/php5/ext/eAccelerator.so"
eaccelerator.shm_size = "16"
eaccelerator.cache_dir = "/var/tmp/eaccelerator"
eaccelerator.enable = "1"
eaccelerator.optimizer = "1"
eaccelerator.check_mtime = "1"
eaccelerator.debug = "0"
eaccelerator.filter = ""
eaccelerator.shm_max = "0"
eaccelerator.shm_ttl = "0"
eaccelerator.shm_prune_period = "0"
eaccelerator.shm_only = "0"
eaccelerator.compress = "1"
eaccelerator.compress_level = "9"

sudo spawn-fcgi -f /usr/bin/php-cgi -s /tmp/php-fcgi.sock -F 2 -u nobody
sudo /usr/local/nginx/sbin/nginx

#! /bin/sh
#
# nginx daemon script
#

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/local/nginx/sbin/nginx
NAME=nginx
PIDFILE=/usr/local/nginx/logs/$NAME.pid
PHPSOCKET=/tmp/php-fcgi.sock
PHPPIDFILE=/tmp/run/php-fcgi.pid
PHPSPAWN="spawn-fcgi -f /usr/bin/php-cgi -s $PHPSOCKET -P $PHPPIDFILE -F 2 -u nobody"

test -x $DAEMON || exit 0

set -e

case "$1" in
  start)
echo "Starting $NAME."
$DAEMON
$PHPSPAWN
;;

  stop)
echo "Stopping $NAME."
$DAEMON -s stop
kill `cat $PHPPIDFILE`
rm -f $PHPSOCKET $PHPPIDFILE
;;

  restart)
echo "Restarting $NAME."
$DAEMON -s reopen
kill `cat $PHPPIDFILE`
rm -f $PHPSOCKET $PHPPIDFILE
$PHPSPAWN
;;

  reload)
    if [ ! -f $PIDFILE ]; then
      echo "nginx not started."
      exit 1
    fi
    echo "Reloading $NAME."
    $DAEMON -s reload
    ;;

  test)
    $DAEMON -t
    ;;

  *)
N=/etc/init.d/$NAME
echo "Usage: $N start|stop|restart|reload|test" >&2
exit 1
;;
esac

exit 0