Varnish相关

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一、安装问题解决（版本4.0.2）

********************************** 问题 1 **********************************

configure: error: Package requirements (libpcre) were not met:

No package 'libpcre' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you

installed software in a non-standard prefix.

Alternatively, you may set the environment variables PCRE_CFLAGS

and PCRE_LIBS to avoid the need to call pkg-config.

See the pkg-config man page for more details.

------------------------------- 解决方法 1 --------------------------------

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

********************************** 问题 2 **********************************

如果报错的话，即pcre问题

../../lib/libvarnishapi/.libs/libvarnishapi.so: undefined reference to `pcre_free_study'

collect2: ld returned 1 exit status

make[3]: *** [varnishadm] Error 1

------------------------------- 解决方法 2 --------------------------------

试着将pcre-devel删除

yum erase pcre-devel

再手动编译pcre

如果 yum报python版本的错误则将安装的最新的python版本改回旧的

There was a problem importing one of the Python modules

required to run yum. The error leading to this problem was:

No module named yum

********************************** 问题 3 **********************************

报 python-docutils 错误需要安装

http://sourceforge.net/projects/docutils/files/?source=navbar

------------------------------- 解决方法 3 --------------------------------

安装 python setup.py install

********************************** 问题 4 **********************************

Making all in libvmod_debug

make[3]: Entering directory `/root/soft/varnish-4.0.2/lib/libvmod_debug'

python2 ../../lib/libvcc/vmodtool.py --strict ../../lib/libvmod_debug/vmod.vcc

File "../../lib/libvcc/vmodtool.py", line 746

print("WARNING: %s:" % m, file=sys.stderr)

SyntaxError: invalid syntax

make[3]: *** [vcc_if.h] Error 1

make[3]: Leaving directory `/root/soft/varnish-4.0.2/lib/libvmod_debug'

make[2]: *** [all-recursive] Error 1

make[2]: Leaving directory `/root/soft/varnish-4.0.2/lib'

make[1]: *** [all-recursive] Error 1

make[1]: Leaving directory `/root/soft/varnish-4.0.2'

make: *** [all] Error 2

------------------------------- 解决方法 4 --------------------------------

升级Python2.4.3 到Python2.6.6

tar jxvf Python-2.6.6.tar.bz2

# cd Python-2.6.6

# ./configure

# make && make install

2、更改系统默认版本

# mv /usr/bin/python /usr/bin/python.bak

# ln -s /usr/local/bin/python2.6 /usr/bin/python

如果之前安装过python-docutils 需要重新再装一遍

二、ESI例子

1、设置缓存时间（设置HTTP头部）。

JSP例子

Date d = new Date();

String modDate = d.toGMTString();

String expDate ="Mon, 18 Aug 2014 09:42:08 GMT";//计算出来的业务过期时间、根据数据知道变更节点的可以由数据计算得到、缓存固定时间的可以写时间窗口计算时间。

response.setHeader("Last-Modified", modDate);

response.setHeader("Expires", expDate);

//response.setHeader("Cache-Control", "public");

//response.setHeader("Pragma", "Pragma");

2、使用ESI

include一个页面：<esi:include src="URI" alt="URI" onerror="continue" />

其它标签参照 http://www.w3.org/TR/esi-lang

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