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Varnish：vcl_error 重定向

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Varnish：vcl_error 重定向

我有几个关于 Varnish 配置的问题。我有这个简单的配置文件：

backend default {
  .host = "127.0.0.1";
  .port = "80";
}

sub vcl_recv {

if (req.http.Host == "192.168.1.100")
  {
    set req.http.Location = "http://example.com" req.url;
    error 750 "Permanently moved - TEST";
  }
}

sub vcl_error {

if (obj.status == 750) {
  set obj.http.Location = req.http.Location;
  set obj.status = 301;
  return(deliver);
 }
}

问题：

（1）我已关注这例如：set req.http.Location = "http://example.com" + req.url;- 但是，除非我删除这个符号，否则我无法重新加载 Varnish +- 它是必需的吗？它的用途是什么？

# /etc/init.d/varnish reload
Loading vcl from /etc/varnish/default.vcl
Current running config name is reload_2013-12-17T15:01:43
Using new config name reload_2013-12-17T15:18:31
Message from VCC-compiler:
Expected variable, string or semicolon
(input Line 124 Pos 58)
    set req.http.Location = "http://example.com" + req.url;
---------------------------------------------------------#---------
Running VCC-compiler failed, exit 1VCL compilation failed
Command failed with error code 106
varnishadm -S /etc/varnish/secret -T 127.0.0.1:6082 vcl.load failed

答案1

在 2.1 中字符串连接如下所示：

set req.http.Location = "http://example.com" req.url;

在 3.0 中，这明确使用“+”完成。

https://www.varnish-cache.org/docs/3.0/installation/upgrade.html#string-concatenation-operator

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