Hi Willy, > Yes definitely. There's no emergency but any extra info you can provide > will help us of course.
I tested with HTTP/1.1 on the client side and HAProxy was flawless, so this is very, very likely limited to h2. > That could indeed. No need to have something very advanced, if you figure > that by having a dummy server delivering certain sizes after a certain > delay and issuing a few curl requests then Ctrl-C is enough to trigger > the issue often enough, it will help us start to inspect the code live > when the problem is expected to happen. But I know how painful this can > be to do so really, I'm not going to ask you to spend too much time on > this. I've responded to you directly with a replication script. I'm happy to continue helping however I can. Best, Luke — Luke Seelenbinder Stadia Maps | Founder stadiamaps.com On Tue, Mar 19, 2019, at 14:19, Willy Tarreau wrote: > On Tue, Mar 19, 2019 at 08:59:38AM -0400, Luke Seelenbinder wrote: > > Makes sense, Willy. Thanks for continuing to investigate this. > > > > > I'm assuming that this is always reproducible with H2 on the front and > > > H1 on the back. > > > > I have not tried it with H1 -> H1, but I assume that case works correctly. > > Would it be helpful if I proved it one way or the other? > > Yes definitely. There's no emergency but any extra info you can provide > will help us of course. > > > > I'll see if we can find a reliable reproducer for such > > > situations, that will help us nail down this issues. > > > > Would it be helpful if I try to work up a test case? (Bash script with curl > > or python or something?) I imagine the request cancellation part would be > > the > > hard part. > > That could indeed. No need to have something very advanced, if you figure > that by having a dummy server delivering certain sizes after a certain > delay and issuing a few curl requests then Ctrl-C is enough to trigger > the issue often enough, it will help us start to inspect the code live > when the problem is expected to happen. But I know how painful this can > be to do so really, I'm not going to ask you to spend too much time on > this. > > Many thanks, > Willy > >
