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  1. Traffic Server
  2. TS-1125

POST's with Expect: 100-continue are slowed by delayed 100 response.



    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 3.0.2
    • Fix Version/s: 5.0.0
    • Component/s: HTTP
    • Labels:
    • Environment:

      TS 3.0.2 going to Apache 2.2 web server


      Sending a post like:
      POST / HTTP/1.1
      Host: www.example.com
      Content-Length: 10
      Expect: 100-continue

      directly to the web server immediately sends back:
      HTTP/1.1 100 Continue

      And then when the post data is sent, a status 200 response comes back.
      But when going through ATS the "HTTP/1.1 100 Continue" is not sent immediately, and instead is sent after the POST data has been received. This is legal, but it makes clients that are hoping for a 100 continue to wait a little while hoping to get that, ATS should forward that response through immediately.

      Note: I see curl using "Expect: 100-continue" with > 1024 bytes of post data, but web searching indicates that some Microsoft products also use it.


        1. TS-1125.diff
          11 kB
          Feifei Cai
        2. ts1125.diff
          11 kB
          Feifei Cai
        3. ts1125.diff
          11 kB
          Bryan Call
        4. ts1125.diff
          11 kB
          Bryan Call
        5. TS-1125.diff
          9 kB
          Feifei Cai

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              • Assignee:
                bcall Bryan Call
                wbardwel William Bardwell
              • Votes:
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                • Created: