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Posted to dev@qpid.apache.org by "Maxim Rydkin (JIRA)" <ji...@apache.org> on 2016/02/19 04:15:18 UTC
[jira] [Comment Edited] (QPID-2410) perftest hang in SSL on Windows
with large buffers
[ https://issues.apache.org/jira/browse/QPID-2410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15153635#comment-15153635 ]
Maxim Rydkin edited comment on QPID-2410 at 2/19/16 3:14 AM:
-------------------------------------------------------------
So framing errors I'm seeing seem to be due to the fact that the SslIoBuff returns a buffer of size (base->byteCount - sizes.cbHeader - sizes.cbTrailer) which is too small to hold a full frame of data if the message gets split into multiple frames. Then the TCPConnector::encode gets invoked in a loop forever writing no data, because the frame doesn't fit into a buffer.
It seems happier if I make them pluses so its big enough to hold header, data, and trailer - but then connection gets dropped anyway. Maybe because the new buffer exceeds agreed upon max-frame-size
was (Author: maxrydkin):
So framing errors I'm seeing seem to be due to the fact that the SslIoBuff returns a buffer of size (base->byteCount - sizes.cbHeader - sizes.cbTrailer) which is too small to hold a full frame of data if the message gets split into multiple frames. Then the TCPConnector::encode gets invoked in a loop forever writing no data, because the frame doesn't fit into a buffer.
It seems happier if I make them pluses so its big enough to hold header, data, and trailer - but then connection gets dropped anyway. Maybe because the new bufferexceeds agreed upon max-frame-size
> 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
>
> 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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