3 Replies Latest reply on Feb 13, 2013 3:10 PM by michael10

Performance improvements for creating a lot of subscriptions

michael10 Feb 13, 2013 1:20 PM

We use Hornetq 2.2.14

We have about 7000 topic subscriptions server side and we found out that we get performance problems with an application that creates about ~60 subscriptions more.

With profiling we see that 1 subscription takes about 100ms, so we lost 6sec.

We also knowing that the network and the server need some time (it´s a WAN and the server is sometimes working hard).

So is there a possability for speed up creating subscriptions, e.g do not blocking when creating a new subscription.

We also check to do not stopping the connection when creating a subscription, but there is not much benefit.

I test it on my local machine and creating 7000 subscriptions and 1 subscription takes about 15ms.

So if you have any hints, it would help us.

Greetings.

1. Re: Performance improvements for creating a lot of subscriptions

clebert.suconic Feb 13, 2013 2:46 PM (in response to michael10)

The client will need to block until the subscription is created... Are you doing this on a single application?

Maybe you should pre-create that through management on the server?
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2. Re: Performance improvements for creating a lot of subscriptions

clebert.suconic Feb 13, 2013 2:46 PM (in response to clebert.suconic)

Can you try 2.3.0 on this?
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3. Re: Performance improvements for creating a lot of subscriptions

michael10 Feb 13, 2013 3:10 PM (in response to clebert.suconic)

It's a termin-view-module in a framework. And if you switch to another day, it creates subscriptions (~60) and removes old one. It would be difficuld to redesign this module.
What you mean with pre-create?
Its not easy to test with new version, but we can try it. Are there made some changes (performance) in creating subscriptions in the new version?
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