Re: [Pound Mailing List] Delay in Request Running over pound

Hello Emilio.

Thanks for the reply.
Might you be so kind an provide me some details regarding your solution.
A first search in github does not give me any results.
I found two patches regarding the issue (one for 2.6 and one for 2.8a). Tried to use the 2.8a one, but that patch did not apply correct. I patched it manually, but still without success... :-(

Regards

Stefan

Von meinem iPad gesendet

> Am 01.08.2017 um 11:20 schrieb Emilio Campos <[email protected]>:
> 
> We had a similar issue with an app of a vendor, the 100 continue header in the backend was mandatory and we solved this after to support 100continue from Pound. You can find some pound fork in github including this patch, if needed.
> 
> Joe and Robert, I think that supporting 100continue header would be great!
> 
> Thanks and regards
> 
> 2017-07-30 14:59 GMT+02:00 Stefan Bauer <spam-Rea7gY/[email protected]>:
>> Hello mailinglist....
>> 
>> No I ´m a Little bit further in analysing the tcpdumps....
>> Client is sending an initial http post packet including the Expect: 100-continue Header.
>> Pound is recieving this packet, but does Not forward it to the backend server. There is just an Ack from the pound to the Client. Than it Looks like that the client is ignoring the missing Continue answer of the server after 1 second and is sending the further request....
>> That causes the delay...
>> 
>> Regards
>> 
>> Stefan
>> 
>> Von meinem iPad gesendet
>> 
>> > Am 26.07.2017 um 22:38 schrieb Stefan Bauer <spam-Rea7gY/[email protected]>:
>> >
>> > Hello mailinglist....
>> >
>> > First of all, thanks for the replies so long and sorry for the Delay of my side, but we Bad some general issues with our application.
>> >
>> > In the meantime I have managed it to Upgrade to pound Version 2.7
>> > The delay is still existent. Í have also done some Traffic captures. One capture on the Client and one on the backend Server.
>> > It is getting more and more difficult.
>> > The First 3 Packets are looking normal on both sides:
>> > 1. Syn
>> > 2. Syn, Ack
>> > 3. Ack
>> > –> Typical 3-way-TCP-Handshake...
>> >
>> > than on Client side i can See a packet going to the server with PSH, Ack set, containing also a POST / HTTP/1.1 in the tcp Data.
>> > next packet is an Ack of the Server. Now we have a Delay of 1 Second and next packet is a Full POST command  going to the server.
>> >
>> > On Server side there is After the 3-was-Handshake the next packet the Full Post command...
>> >
>> > If anyone is interessted in the captures, i May provide them directly. Since the systems are public reachable, i do Not want to provide them in the mailinglist...
>> >
>> > Best regards
>> >
>> > Stefan
>> >
>> > Von meinem iPad gesendet
>> >
>> >> Am 20.07.2017 um 10:48 schrieb Bussi Andrea <[email protected]>:
>> >>
>> >> Is the backend trying a reverse DNS lookup
>> >> for the IP of the load balancer and timing out?
>> >>
>> >> Andrea
>> >>
>> >>> On 07/18/2017 10:02 PM, Stefan Bauer wrote:
>> >>> Hello Mailingliste-List.
>> >>> I have a Strange Issue in Running Pound.
>> >>> Í m Running pound on an ubuntu 14.04 using the default supplied package (Version 2.6)
>> >>> If the request to an http Service is Running over the pound loadbalancer it Takes about 1 or 2 second to complete the request.
>> >>> If i do the request directly to the backend Server it takes about 0.2 seconds to complete the request.
>> >>> Any idea how to solve that?
>> >>> Regards
>> >>> Stefan
>> >>> Von meinem iPad gesendet
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> 
> 
> 
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