/usr/bin/ld: cannot find -lltdl

1.按内存从大到小排列进程:
ps -eo “%C : %p : %z : %a”|sort -k5 -nr

2.查看当前有哪些进程；查看进程打开的文件:
ps -A ；lsof -p PID

3.获取当前IP地址（从中学习grep,awk,cut的作用）
ifconfig eth0 |grep “inet addr:” |awk ‘{print $2}’|cut -c 6-

4.统计每个单词出现的频率，并排序
awk ‘{arr[$1]+=1 }END{for(i in arr){print arr”\t”i}}’ 文件名 | sort -rn

5.显示10条最常用的命令
sed -e “s/| /\n/g” ~/.bash_history | cut -d ‘ ‘ -f 1 | sort | uniq -c | sort -nr | head Read the rest of this entry »

Varnish 2.0.3 has just been released. This release contains multiple changes, amongst them:

• Support for backend timeouts
• Multiple fixes in how we process ESI
• restart in vcl_hit is now supported
• Documentation has been updated
• Expiry processing is now more scalable
• The default session workspace is now 16k instead of 8k
• More graceful handling of too many headers from the client or the server.
• More expressive purges

之前一直使用的还是2.0的一个trunk的R2860版本，因为只有这个版本我从1.1.2升级上来以后没有慢的问题⊙﹏⊙。但是看着新版却一直不能用，实在是让人心里痒。于是抱着死磕到底的态度，在检查了n+1遍配置文件和修改启动参数重启了n+1遍Varnish以后终于找到了问题的所在，即启动参数的-w这个上面。那么这个参数是干什么用的呢？

    -w int[,int[,int]]           # Number of worker threads
                                 #   -w <fixed_count>
                                 #   -w min,max
                                 #   -w min,max,timeout [default: -w2,500,300]

可以看出这个参数是控制每个进程的线程数的，1.1.2版本的时候这个参数我配置的是-w30000,51200,10，貌似到了2.0版以后这个最小启动的线程数不能设定过大，于是在进行了几次调试以后最终将参数定为了-w5,51200,30

软件列表
pcre-8.02.tar.gz
varnish-2.1.tar.gz

软件存放位置
/data/software

安装过程
# /usr/sbin/groupadd www -g 48
# /usr/sbin/useradd -u 48 -g www www
# mkdir -p /data/vcache
# chmod +w /data/vcache
# chown -R www:www /data/vcache
# mkdir -p /var/log/varnish
# chmod +w /var/log/varnish
# chown -R www:www /var/log/varnish
# cd /data/software/pkg
# tar zxvf ../pcre-8.02.tar.gz
# cd pcre-8.02
# ./configure
# make && make install
# cd ..
# tar zxvf ../varnish-2.1.tar.gz
# cd varnish-2.1
# export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
# ./configure –prefix=/usr/local/varnish
# make && make install

编辑Varnish配置文件
# vi /usr/local/varnish/vcl.conf

backend webserver {
       set backend.host = “10.10.10.8″;
       set backend.port = “80″;
}

acl purge {
       “localhost”;
       “127.0.0.1″;
       “10.10.10.0″/24;
}

sub vcl_recv {
        remove req.http.X-Forwarded-For;
        set    req.http.X-Forwarded-For = client.ip;
        if (req.request == “PURGE”) {
               if (!client.ip ~ purge) {
                       error 405 “Not allowed.”;
               }
               lookup;
       }

       if (req.http.host ~ “(a|b|c).test.com”) {
               set req.backend = webserver;
              if (req.url ~ “\.(png|gif|jpg|swf|css|js)$”) {
                       lookup;
        }
               else {
                       pass;
               }
       }

       else {
               error 404 “Test Cache Server”;
               pipe;
       }
}

sub vcl_hash {
    set req.hash += req.url;
    if (req.http.host) {
        set req.hash += req.http.host;
    } else {
        set req.hash += server.ip;
    }
    hash;
}

sub vcl_pipe {
        set req.http.connection = “close”;
        #pipe;
}

sub vcl_hit {
        if (!obj.cacheable) {
                pass;
        }
       if (req.request == “PURGE”) {
               set obj.ttl = 0s;
               error 200 “Purged.”;
       }
        deliver;
}

sub vcl_miss {
       if (req.request == “PURGE”) {
               error 404 “Not in cache.”;
       }
}

sub vcl_fetch {
               set obj.ttl = 180s;
               #set    obj.http.X-Varnish-IP = server.ip;
               set    obj.http.Varnish = “Tested by Kevin”;
}

启动Varnish
# /usr/local/varnish/sbin/varnishd -n /data/vcache -f /usr/local/varnish/etc/varnish/default.vcl -a 10.10.10.8:80 -s file,/data/vcache/varnish_cache.data,50G -u www -w2,65536,60 -T 127.0.0.1:3600 -p thread_pool_min=200 -p thread_pool_max=4000 -p thread_pools=4 -p thread_pool_add_delay=2 -p listen_depth=4096 -p lru_interval=20

启动日志记录
#/usr/local/varnish/bin/varnishncsa -n /data/vcache -w /var/log/varnish/varnish.log &

nginx修改
fastcgi_pass unix:/tmp/nginx.socket;

php-fpm.conf修改
listen = /tmp/nginx.socket
重启php-fpm 重启nginx 搞定。。不过不知道能有多大改善。。难说。。。。

php-5.3.2/sapi/fpm/init.d.php-fpm

这个东西在源始代码里面，copy出来用就可以了，这个脚本可以start stop reload fpm就和5.2+的那个脚本一样了！

./configure –prefix=/usr/local/php –with-mysqli=/usr/local/mysql/bin/mysql_config –with-mysql=/usr/local/mysql –with-config-file-path=/usr/local/php/etc –with-curl –with-zlib –enable-ftp  –with-mcrypt –enable-inline-optimization –disable-debug –with-gd –enable-gd-native-ttf –enable-gd-jis-conv –with-iconv-dir=/usr/local –with-freetype-dir=/usr/local/lib/freetype –with-jpeg-dir=/usr/local –with-png-dir=/usr/local –with-zlib –with-libxml-dir=/usr/local/lib/libxml –enable-xml –enable-exif –enable-soap –enable-zip –with-openssl –enable-mbstring –with-mhash –with-tidy –enable-fastcgi –enable-fpm –enable-force-cgi-redirect –enable-mbstring

make ZEND_EXTRA_LIBS=’-liconv’

make install

按照提示装就行了！

if (! ($tokens[1] =~ "127.0.0.1")) {

看懂这个，打在squid.conf里面，就搞定了！！很简单

http://uddtm.com/os/linux/duoxianluyoucelue.php

clients/ms_conn.o: In function `ms_get_udp_request_id’:
/root/soft/phpmodel/libmemcached-0.42/clients/ms_conn.c:194: undefined reference to `__sync_fetch_and_add_4′
clients/ms_conn.o: In function `ms_reconn_socks’:
/root/soft/phpmodel/libmemcached-0.42/clients/ms_conn.c:1051: undefined reference to `__sync_fetch_and_add_4′
clients/ms_conn.o: In function `ms_reconn’:
/root/soft/phpmodel/libmemcached-0.42/clients/ms_conn.c:919: undefined reference to `__sync_fetch_and_add_4′
/root/soft/phpmodel/libmemcached-0.42/clients/ms_conn.c:956: undefined reference to `__sync_fetch_and_add_4′
clients/ms_thread.o: In function `ms_setup_thread’:
/root/soft/phpmodel/libmemcached-0.42/clients/ms_thread.c:225: undefined reference to `__sync_fetch_and_add_4′
clients/ms_thread.o:/root/soft/phpmodel/libmemcached-0.42/clients/ms_thread.c:208: more undefined references to `__sync_fetch_and_add_4′ follow
collect2: ld returned 1 exit status
make[2]: *** [clients/memslap] Error 1
make[2]: Leaving directory `/root/soft/phpmodel/libmemcached-0.42′
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/root/soft/phpmodel/libmemcached-0.42′
make: *** [all] Error 2

用这个语句

./configure -disable-64bit CFLAGS=”-O3 -march=i686″

就可以了

yum -y install pam-devel openldap-devel cyrus-sasl-devel

需要BerkeleyDb
openladap
ss5.tar.gz..

一个一个编译完毕以后，修改/etc/opt/ss5.conf
auth    0.0.0.0/0               -              u
permit u 0.0.0.0/0 – 0.0.0.0/0 – - ulimit – -
修改ss5.passwd文件加入
username password
添加ulimit 文件
ulimit里面写上username

mv /usr/lib/ss5/mod_socks4.so /usr/lib/ss5/mod_socks4.so.bk

启动/etc/rc.d/init.d/ss5 restart

转帖：

测试机器的硬件信息：

查看CPU信息（型号）
# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
      8  Intel(R) Xeon(R) CPU            E5410   @ 2.33GHz
(看到有8个逻辑CPU, 也知道了CPU型号)
Read the rest of this entry »

http://stderr.net/apache/rpaf/download/

编译吗。。用这个

Read the rest of this entry »

http://github.com/mjpearson/Pandra/downloads

Dependencies

        * Cassandra >= 0.6

        * Thrift Interface (tested cassandra.thrift and pre-generated files are packaged)

        * PHP >= 5.3

        * OSSP PHP-UUID module

        – Optional

            * Model Generation – syck yaml

            * Caching – APC or Memcached (PECL)

            * Logging – Syslog, Sendmail and FirePHP
http://incubator.apache.org/cassandra/

淘宝用于图片resize和水印的工具不是imagemagick而是graphicsmagick，效率据说高一些，我们来试试

download : http://www.graphicsmagick.org/download.html

下载.tar.gz文件 Read the rest of this entry »