Hi all,
we are running a bridge between our old middleware and qpid system which at
startup queries the existing middleware for the number of broadcast groups it
knows about. It is a pricing system so there are ~20000.
The bridge creates a fanout exchange for each broadcast group, creates a queue
and binds it to the exchange. All this takes ~75 seconds for 20000. Not a
problem.
When we add a SubscriptionManager.subscribe() to the loop we get though 1000
requests in ~3 minutes.
I have created an example below which exhibits the problem. The question are we
using the SubscriptionManager incorrectly? Is there a better way for us to
achieve the result we require?
for (int i=0; i < 20000; ++i) {
std::stringstream ss; ss << "listener" << i;
// Try and declare the exchange. Will succeed even if it already exists.
oSession.exchangeDeclare(qpid::client::arg::exchange=ss.str(),
qpid::client::arg::type="fanout",
qpid::client::arg::alternateExchange=std::string(),
qpid::client::arg::passive=false,
qpid::client::arg::durable=true);
oSession.queueDeclare(qpid::client::arg::queue=ss.str(),
qpid::client::arg::exclusive=true,
qpid::client::arg::autoDelete=false);
oSession.exchangeBind(qpid::client::arg::exchange=ss.str(),
qpid::client::arg::queue=ss.str(),
qpid::client::arg::bindingKey=ss.str());
oSubscriptionManager.subscribe(*this, ss.str());
}
Regards,
Dave
The information contained in this email is strictly confidential and for the
use of the addressee only, unless otherwise indicated. If you are not the
intended recipient, please do not read, copy, use or disclose to others this
message or any attachment. Please also notify the sender by replying to this
email or by telephone (+44 (0)20 7896 0011) and then delete the email and any
copies of it. Opinions, conclusions (etc.) that do not relate to the official
business of this company shall be understood as neither given nor endorsed by
it. IG Index Ltd is a company registered in England and Wales under number
01190902. VAT registration number 761 2978 07. Registered Office: Friars House,
157-168 Blackfriars Road, London SE1 8EZ. Authorised and regulated by the
Financial Services Authority. FSA Register number 114059.
---------------------------------------------------------------------
Apache Qpid - AMQP Messaging Implementation
Project: http://qpid.apache.org
Use/Interact: mailto:[email protected]
