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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HTTPASYNC-85) ZeroCopyConsumer Hangs on SSL Download
Date Thu, 27 Nov 2014 09:10:12 GMT

     [ https://issues.apache.org/jira/browse/HTTPASYNC-85?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Oleg Kalnichevski resolved HTTPASYNC-85.
       Resolution: Fixed
    Fix Version/s: 4.1-beta1

> ZeroCopyConsumer Hangs on SSL Download
> --------------------------------------
>                 Key: HTTPASYNC-85
>                 URL: https://issues.apache.org/jira/browse/HTTPASYNC-85
>             Project: HttpComponents HttpAsyncClient
>          Issue Type: Bug
>    Affects Versions: 4.0.2
>         Environment: 2.6.18-398.el5 #1 SMP Tue Aug 12 06:26:17 EDT 2014 x86_64 GNU/Linux
> Red Hat Enterprise Linux Server release 5.11 (Tikanga)
> java version "1.7.0_55"
> Java(TM) SE Runtime Environment (build 1.7.0_55-b13)
> Java HotSpot(TM) 64-Bit Server VM (build 24.55-b03, mixed mode)
>            Reporter: Charles Barber
>             Fix For: 4.0.3, 4.1-beta1
>         Attachments: DemoSSLHang.zip, logOutput.txt
> When using the ZeroCopyConsumer class, but only when the target server is accessed over
TLS, certain requests will result in it hanging indefinitely (until the other side resets
the connection or the client times out), or for a couple minutes and then continue.
> This happens consistently against a .Net server in one of our partner's environments.
I've also seen it when accessing a WebLogic 11g server, but with that, it will resume on its
own after a couple minutes. I cannot reproduce it with a Jetty server.
> If I set up stunnel to do the TLS, and run exactly the same requests over plain text
HTTP, we experience no issues. This is in fact our production workaround.
> Also, using the basic in-memory consumer (over TLS) works fine. I also wrote a simple
async consumer that reads from the decoder to an array-based byte buffer and then writes to
a file, and that works fine.
> Interestingly, I have another custom async consumer that we use for streaming back out
to the original client, while HTTP Async Client is running in a servlet 3.1 container, and
that hangs just like the ZeroCopyConsumer does (but again, no issue over plain text HTTP).
> I'll attach a client that can reproduce the error; unfortunately I can't provide the
servers in question.

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