Why after qpid broker is restarted messages which had been received in a
previous session get received again?
1) I launch a broker, my server and a client.
2) Server sends messages to clients.
3) I disconnect broker by Ctrl+c
4) My client and server wait until I restart the broker again.
5) The messages that the server had sent in 2) are received by clients
again.
After a connection gets broken, I re-open the session and create new senders
and receivers with the same addresses.
I am using C++ qpid version 0.6, messaging api.
Server code:
_broadcaster = _session.createSender(Address("acctUpdates/account_updates;
{create:always, node-properties;{type:topic, durable:True},
link-properties:{reliability:exactly-once}}"));
...
_bradcaster.send(msg);
Client code:
_recevier = _session.createReceiverr(Address("acctUpdates/account_updates;
{create:always, node-properties;{type:topic, durable:True},
link-properties:{reliability:exactly-once}}"));
_receiver.fetch(msg, qpid::sys::TIME_SEC);
_session.acknowledge();
_session.sync(); // does not make a difference if it is used or not
Message.setDurability() or .setTTL() are not even in the header files, although
the http://qpid.apache.org/apis/0.6/cpp/html/a00119.html says they exist.
"link-properties:{reliability:exactly-once}}" also has no effect.
Qpid-config shows exchange as durable and this is what I want. The queue
automatically created on this exchange is not durable and disappears after
ctrl+c.
Thank you.
Luba
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