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https://issues.apache.org/jira/browse/QPID-3366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13068220#comment-13068220
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Francesco Emmi commented on QPID-3366:
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Hi,
I' ve just seen that the big frame is created by
AMQP_ServerProxy::Session::completed
Francesco
qpid get stuck under heavy load
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Key: QPID-3366
URL: https://issues.apache.org/jira/browse/QPID-3366
Project: Qpid
Issue Type: Bug
Components: C++ Client
Affects Versions: 0.10
Environment: Linux
Reporter: Francesco Emmi
Hi all,
I' ve been experiencing a very strange behaviour on qpid C++ client that
seems to arise just only under heavy load.
Basically in the queue named frames inside client::TCPConnector::writebuf
somehow a frame arrives which is grater than 65535 bytes. This cause
client::TCPConnector::encode not to be able to transform the frame in a
AsinchIO buffer and therefore the frame is not pop-ed from frames queue while
on the other side e 0 sized buffer is inserted into AynchIO buffers queue.
Starting from this moment on, the application using qpid client get stuck no
longer sending messages and using 100% CPU. This is becouse the big frame in
front of frames queue cannot be elimiated and acts like a cork in the queue.
I' ve no idea so far how to handle this, just because I cannot understand
who creates this big frame and how to prevent this to happen.
I'll continue to investigate and try to give you as more details as possible.
Thanks
Francesco
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