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From Tobias Nöll (JIRA) <j...@apache.org>
Subject [jira] [Commented] (QPID-2410) perftest hang in SSL on Windows with large buffers
Date Wed, 06 Apr 2016 16:48:25 GMT

    [ https://issues.apache.org/jira/browse/QPID-2410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15228615#comment-15228615
] 

Tobias Nöll commented on QPID-2410:
-----------------------------------

Meanwhile I got it working:

Solution was: 
1.) No need to modify the client c++ api
2.) Don't set max-frame-size in the client (i.e. in connection options)
3.) Modify the java broker to have a max-frame-size of 0x3FFF instead of 0XFFFF
in org/apache/qpid/server/protocol/v0_10/ServerConnectionDelegate.java

Strangely, if I set a max-frame-size:16384 in the connection parameters of the client, it
hangs if sending larger messages than this. If I remove max-frame-size parameter from the
connection option everything works fine.

I don't understand this behaviour, but at least it is working. From my point of view for a
solution it should have been enough for the clients to connect with max-frame-size accordingly
set to 16K. Strangely, it's not. But I'll work for now with this workaround until a proper
fix is available...

> perftest hang in SSL on Windows with large buffers
> --------------------------------------------------
>
>                 Key: QPID-2410
>                 URL: https://issues.apache.org/jira/browse/QPID-2410
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Client
>    Affects Versions: 0.7
>         Environment: Windows client, Linux broker
>            Reporter: Cliff Jansen
>            Assignee: Steve Huston
>         Attachments: ssl_windows_patch.patch
>
>
> The following command:
>   perftest --count 1 --size 102400 -P ssl --port 5671 --broker linuxhost --username testuser
--password secret --mechanism PLAIN
> hangs on a Windows client.  Reducing the message body size to 1024 bytes makes the hang
go away, as does turning off SSL.



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