curl timeout problem

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  • news
    #1

    curl timeout problem

    Hi,
    I'm having a problem with the cURL library.
    It doesn't seem to obey the 'timeout' parameters.

    I set the CURLOPT_CONNECT TIMEOUT to, say, 1 second,
    and CURLOPT_TIMEOUT to whatever value.

    Then I'm fetching (via a GET request) some page
    from a _nonexistent_ domain - and I have to wait around 4 seconds
    for the timeout error to show up. (name lookup error)

    So - what's the use of CONNECTTIMEOUT and TIMEOUT?
    Why I have to wait 4 seconds, while I set the connect timeout
    to 1 second?

    TIA, Regards
    -news
    Tags: curl timeout, curlopt_connecttimeout
    • Rik
      #2
      Re: curl timeout problem

      news wrote:
      Hi,
      I'm having a problem with the cURL library.
      It doesn't seem to obey the 'timeout' parameters.
      >
      I set the CURLOPT_CONNECT TIMEOUT to, say, 1 second,
      and CURLOPT_TIMEOUT to whatever value.
      >
      Then I'm fetching (via a GET request) some page from a _nonexistent_
      domain - and I have to wait around 4 seconds
      for the timeout error to show up. (name lookup error)
      >
      So - what's the use of CONNECTTIMEOUT and TIMEOUT?
      Why I have to wait 4 seconds, while I set the connect timeout
      to 1 second?
      Well, maybe looking up an ip for the host might not be counted as valid
      for the timeout (which might be time to let the server respond, and we
      first have to know that server). What happens if you choose a
      non-existent ip instead of DNS?

      --
      Rik Wasmus

      Estimated date being able to walk again: 01-05-2007.
      Less then a week, hurray!

        Comment

        • news
          #3
          Re: curl timeout problem

          Hi,
          I'm having a problem with the cURL library.
          It doesn't seem to obey the 'timeout' parameters.
          >
          I set the CURLOPT_CONNECT TIMEOUT to, say, 1 second,
          and CURLOPT_TIMEOUT to whatever value.
          >
          Then I'm fetching (via a GET request) some page from a _nonexistent_
          domain - and I have to wait around 4 seconds
          for the timeout error to show up. (name lookup error)
          >
          So - what's the use of CONNECTTIMEOUT and TIMEOUT?
          Why I have to wait 4 seconds, while I set the connect timeout
          to 1 second?

          Sorry, my mistake.
          CURL timeout works fine - the problem was that I've set a fractional
          timeout - like 0.4 seconds - then the timeouts were strange.
          When I now set it to 1,2 or 3 seconds then it timeouts OK.
          Checked for domain lookups and IPs.

          So actually the question is, if it's possible to set a fractional timeout.

          Regards
          -news

            Comment

            • rahul sinha
              #4
              Re: curl timeout problem

              On Apr 26, 2:55 pm, news <a...@inetia.pl wrote:
              Hi,
              I'm having a problem with the cURL library.
              It doesn't seem to obey the 'timeout' parameters.
              Can you show me the code ..
              >
              I set the CURLOPT_CONNECT TIMEOUT to, say, 1 second,
              and CURLOPT_TIMEOUT to whatever value.
              >
              Then I'm fetching (via a GET request) some page
              from a _nonexistent_ domain - and I have to wait around 4 seconds
              for the timeout error to show up. (name lookup error)
              >
              So - what's the use of CONNECTTIMEOUT and TIMEOUT?
              Why I have to wait 4 seconds, while I set the connect timeout
              to 1 second?
              >
              TIA, Regards
              -news

                Comment

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