尝试访问 Amazon Cloudfront 时,我在使用 cURL 和 PHP 时遇到了奇怪的超时。这似乎会影响所有无效请求、创建分发等。cURL 要么报告接收 0 个字节,要么报告接收到很少的字节,然后超时:
Operation timed out after 120000 milliseconds with 88 out of 619 bytes received
。
延长超时设置似乎没有什么不同。
使用跟踪CURLOPT_VERBOSE
会产生以下输出:
* About to connect() to cloudfront.amazonaws.com port 443 (#0)
* Trying 72.21.215.67... * connected
* Connected to cloudfront.amazonaws.com (72.21.215.67) port 443 (#0)
* skipping SSL peer certificate verification
* SSL connection using SSL_RSA_WITH_RC4_128_MD5
* Server certificate:
* subject: CN=cloudfront.amazonaws.com,O=Amazon.com Inc.,L=Seattle,ST=Washington,C=US
* start date: Jul 30 00:00:00 2010 GMT
* expire date: Jul 29 23:59:59 2013 GMT
* common name: cloudfront.amazonaws.com
* issuer: CN=VeriSign Class 3 Secure Server CA - G2,OU=Terms of use at https://www.verisign.com/rpa (c)09,OU=VeriSign Trust Network,O="VeriSign, Inc.",C=US
> POST /2010-11-01/distribution/E1CIM4A92QFD98/invalidation HTTP/1.1
User-Agent: S3/php
Accept: */*
Host: cloudfront.amazonaws.com
Date: Wed, 07 Mar 2012 14:31:58 GMT
Content-Type: application/xml
Authorization: AWS ************************
Content-Length: 200
< HTTP/1.1 201 Created
< x-amzn-RequestId: 4c2d0d3f-6862-11e1-ac27-5531ac8c967f
< Location: https://cloudfront.amazonaws.com/2010-11-01/distribution/E1CIM4A92QFD98/invalidation/I35KLNROKA40FU
* Operation timed out after 120000 milliseconds with 0 bytes received
* Closing connection #0
这似乎类似于这个问题。但是,在我的情况下,看起来 curl 实际上确实得到了响应,但不知何故忽略了它并超时?据我所知,收到了响应(201 Created
...),并且没有 SSL 错误。那么为什么 curl 超时?
cURL 版本信息
[version_number] => 463623
[age] => 3
[features] => 1597
[ssl_version_number] => 0
[version] => 7.19.7
[host] => x86_64-unknown-linux-gnu
[ssl_version] => NSS/3.12.7.0
[libz_version] => 1.2.3
[protocols] => Array ( [0] => tftp [1] => ftp [2] => telnet [3] => dict [4] => ldap [5] => ldaps [6] => http [7] => file [8] => https [9] => ftps [10] => scp [11] => sftp )