Thread: HTTP status code

Started: 2013-04-15 22:01:35
Last activity: 2013-04-18 16:38:15
Topics: Web Services
John West
2013-04-15 22:01:35
Hi.

I understand that the new FDSN web services return HTTP 204 to indicate no
data returned, and applaud this move.

If the service is temporarily not available (say because I've made too many
requests in parallel, system is busy, etc.) do I get a different return
code? If so, what?

Thanks!

-- John

  • Philip Crotwell
    2013-04-16 01:21:08
    Hi John

    You might check this out, it has information on what codes are used when.
    Not sure how closely the services hew to the spec, but...
    http://www.fdsn.org/webservices/FDSN-WS-Specifications-1.0.pdf

    I don't actually know, but my guess is that too many requests in parallel
    would be silently killed by the load balancer/firewall thingy at the DMC as
    the request would never actually make it to the web service itself. Would
    be nice to have some official clarification so clients can avoid using too
    many threads/sockets.

    Philip



    On Mon, Apr 15, 2013 at 6:01 PM, John D. West <john.d.west<at>asu.edu> wrote:

    Hi.

    I understand that the new FDSN web services return HTTP 204 to indicate no
    data returned, and applaud this move.

    If the service is temporarily not available (say because I've made too
    many requests in parallel, system is busy, etc.) do I get a different
    return code? If so, what?

    Thanks!

    -- John

    _______________________________________________
    webservices mailing list
    webservices<at>iris.washington.edu
    http://www.iris.washington.edu/mailman/listinfo/webservices



  • Chad Trabant
    2013-04-18 16:38:15

    Hi John,

    During some maintenance or error conditions you will receive an HTTP 503 when the service is unavailable.

    For now, unfortunately, when you hit the limit of parallel requests the connections are dropped/reset at the TCP level. From the client perspective it would be better if we returned an HTTP 503 in this case. We'll look into making this possible and balance with other security implications.

    Chad

    ----- Original Message -----
    From: "John D. West" <john.d.west<at>asu.edu>
    To: "IRIS Web Services List" <webservices<at>iris.washington.edu>
    Sent: Monday, April 15, 2013 3:01:35 PM
    Subject: [webservices] HTTP status code

    Hi.

    I understand that the new FDSN web services return HTTP 204 to indicate no data returned, and applaud this move.

    If the service is temporarily not available (say because I've made too many requests in parallel, system is busy, etc.) do I get a different return code? If so, what?

    Thanks!

    -- John
    _______________________________________________
    webservices mailing list
    webservices<at>iris.washington.edu
    http://www.iris.washington.edu/mailman/listinfo/webservices

Page built 06:24:05 | v.8ffa3d95