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Re: [jetty-users] Question about http2 compatibility
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Thank you very much Simone, that is very helpfull.
We do not explicitly use chunked encoding but simply write the bytes
without setting a content size. I did not know http/2 does not use
chunked encoding. Perhaps we should handle this differently now we are
using http/2?
Unfortunately we can not reproduce this ourselves but I will arrange a
test with one of the clients who reported the issue.
Cheers,
Silvio
On 02/03/2017 09:34 AM, Simone Bordet wrote:
Silvio,
On Fri, Feb 3, 2017 at 9:14 AM, Silvio Bierman
<sbierman@xxxxxxxxxxxxxxxxxx> wrote:
Hello all,
We are running Jetty 9.4.1 and recently configured a couple of servers to
use http2 (which we only used in development until then). Almost immediately
after that we got reports from users who where unable to download
dynamically generated SPSS and Excel files above a certain size. Small files
would work fine but anything from about 0.5MB and up would fail. In the logs
we would see Jetty messages of EofExceptions, broken pipes,
ClosedChannelExceptions. We where able to do the same downloads form them
without any problems.
The customers where mostly using Chrome and IE on Wiindows while we run
Chromium on Linux. After disabling http2 the problems went away. But we
would prefer to enable it naturally.
The downloads use chunked transfer encoding. We do not offload HTTPS and use
Jetty SNI support.
Does anyone have similar experiences or any idea about how to tackle this?
I just tried with our own https://webtide.com website, which also does
TLS in Jetty, and have no problems downloading large files, for both
Firefox and Chrome on Linux.
We did not hear any other similar report.
Just a note that HTTP/2 does not use chunked transfer coding (which is
a HTTP/1.1 only feature).
Would be great if you can reproduce and report the server DEBUG logs.
You can also look at what happens on the client; in Chrome, open:
chrome://net-internals/#http2
There you will see a list of connections that use HTTP/2.
Identify that of your server, and you will see the events for that connection.
Report that event list, which should contain the frames that the
client sent and those received by the server.
We should be able to see something abnormal there.
