[Varnish] #1098: Return HTTP 416 for unsatisfiable byte-range requests

Fri Feb 24 17:22:47 CET 2012

#1098: Return HTTP 416 for unsatisfiable byte-range requests
----------------------+-----------------------------------------------------
 Reporter:  jmeacham  |        Type:  enhancement
   Status:  new       |    Priority:  normal     
Milestone:            |   Component:  build      
  Version:  3.0.2     |    Severity:  normal     
 Keywords:            |  
----------------------+-----------------------------------------------------
 Please consider returning HTTP 416 for unsatisfiable byte-range requests
 (as recommended in section 10.4.17 of RFC 2616) rather than returning the
 entire object with  HTTP 200.

 I understand that this is not a required in the HTTP 1.1 spec. However, I
 believe that implementing this 'proper' behavior would be of value, given
 the increased usage of byte-range requests in multimedia streaming
 applications. Thank you for your consideration and your continued work.

 Example requests to Varnish and backend storage for unsatisfiable ranges
 are included below.

 Request to Varnish cache:
 $curl -o /dev/null -s -H 'Range: bytes=1234567-'
 http://cache001.dc2/11001/index.html

 10.20.31.179 - - [24/Feb/2012:16:12:54 +0000] "GET
 http://cache001.dc2/11001/index.html HTTP/1.1" 200 109 "-" "curl/7.24.0
 (x86_64-apple-darwin11.2.0) libcurl/7.24.0 OpenSSL/1.0.0g zlib/1.2.6
 libidn/1.22"

 Request to backend storage:
 $ curl -s -H 'Range: bytes=1234567-' http://cfs001-1.af1/11001/index.html
 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
 <html><head>
 <title>416 Requested Range Not Satisfiable</title>
 </head><body>
 <h1>Requested Range Not Satisfiable</h1>
 <p>None of the range-specifier values in the Range
 request-header field overlap the current extent
 of the selected resource.</p>
 </body></html>

 10.20.31.179 - - [24/Feb/2012:16:14:16 +0000] "GET /11001/index.html
 HTTP/1.1" 416 314 "-" "curl/7.24.0 (x86_64-apple-darwin11.2.0)
 libcurl/7.24.0 OpenSSL/1.0.0g zlib/1.2.6 libidn/1.22"

-- 
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1098>
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