I mean to say when I'm using the Apache client, I see the server sends back a 
proper response but the client never receives it (it just stays stuck on 
httpclient.execute()). So, on the server side, irrespective of the execution 
path it is taking, I  ultimately know it is sending back a response. Why the 
client is not reacting to that response is the head scratcher.



-Mark




---- On Fri, 29 Mar 2019 08:12:34 -0700 Oleg Kalnichevski <[email protected]> 
wrote ----



On Fri, 2019-03-29 at 08:09 -0700, Mark Cafaro wrote: 

> What makes me think it's a client side issue is that I can take the 

> same request and run it with cURL and properly receive a response. I 

> can also view the logs on the server side and see that a response was 

> sent back. 

> 

> 

 

So what? That means absolutely nothing. Clients can behave differently 

enough to trigger a different execution path on the server side. 

 

Oleg 

 

> 

> I'll try turning on wire logging and see if that gives me any clues. 

> Thanks. 

> 

> 

> 

> 

> ---- On Fri, 29 Mar 2019 06:38:45 -0700 Oleg Kalnichevski < 

> mailto:[email protected]> wrote ---- 

> 

> 

> 

> On Fri, 2019-03-29 at 06:34 -0700, Mark Cafaro wrote: 

> 

> > The call to httpclient.execute() is just stuck until the eventual 

> > socket timeout is reached. 

> > 

> > 

> 

> 

> 

> What makes you think this is a client side issue? Have you tried 

> 

> running your application with HttpClient wire logging turned out and 

> 

> analyzing data packets sent on the wire? 

> 

> 

> 

> Oleg 

> 

> 

> 

> 

> 

> > 

> > -Mark 

> > 

> > 

> > 

> > P.S. Sorry if this created a new thread. I did not subscribe in 

> > time 

> > to get the first reply. 

> > 

> > 

> > > What exactly do you mean by "never receives a response"? What 

> > > happens 

> > > instead? 

> > > 

> > > Oleg 

> > > 

> > > > Hi, 

> > > > 

> > > > I am running long HTTP post requests on Travis CI (Ubuntu 

> > > > 14.04) 

> > > > using the Apache HTTP Client. Strangely if a request exceeds 

> > > > about 8 

> > > > minutes, the client never receives a response. I can see on 

> > > > the 

> > > > server side, however, that a response was sent back. I have 

> > > > the 

> > > > socket timeout set way beyond 8 minutes. 

> > > > 

> > > > If I perform the exact same request, on the exact same 

> > > > machine, 

> > > > using 

> > > > cURL however, it works as expected (i.e. cURL receives a 

> > > > response). 

> > > > Also, if I perform the exact same request using the Apache 

> > > > HTTP 

> > > > Client on my local machine, it works as expected. 

> > > > 

> > > > I've tried playing around with sysctl 

> > > > net.ipv4.tcp_keepalive_time, tcp_keepalive_intvl, 

> > > > and tcp_keepalive_probes but they haven't solved the issue. 

> > > > 

> > > > Are there any settings in the Apache HTTP Client that may be 

> > > > relevant 

> > > > to this issue? 

> > > > 

> > > > Thanks, 

> > > > 

> > > > Mark 

> 

> 

> 

> 

> 

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