[QPID-8221] [qpid-cpp] Client open connections to broker and waits forever

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: qpid-cpp-1.38.0
• Fix Version/s: qpid-cpp-1.39.0
• Component/s: C++ Client
• Labels: patch

Environment

• qpid-cpp 1.38 c++ client/broker
• AMQP 0-10
• RHEL 7.5

• Flags: Patch
• Assignee: Gordon Sim
• Reporter: Chen Wan
• Created: 24/Jul/18 15:44
• Updated: 24/Apr/19 09:07
• Resolved: 08/Aug/18 07:14

Description

I have a problem with qpid-cpp C++ clients stuck on the open connection call while reconnecting with the broker.   It is a rare event, sometimes takes weeks or months to happen.  But when it occurs, I have to manually restart the client process in order to re-establish the broker connection. 

I have summarized the details of this issue in this mailing list post: http://qpid.2158936.n2.nabble.com/Open-connection-to-broker-waits-forever-td7678381.html

Attached is a patch (qpidcpp_client_connect_timeout.patch) to add a timeout to qpid-cpp client's open connection call.  A new option called "connect-timeout" can be used to specify how long to wait for the connection::open call in seconds.  When the "connect-timeout" is set, qpid-cpp client calls "waitFor" with a timeout. 

I have tested it in my environment, and it seems to be able to time out properly when the open call gets stuck.