How to delete all of the topics in ActiveMQ?

Question

I'm using ActiveMQ with the C# client library. I created 10,000 topics with random names as part of a test for evaluation purposes and now I can't get rid of the topics. ActiveMQ grinds to a halt with this number of topics so I need them out of the system. Here is what I have tried so far, and none of it has worked. I'm running ActiveMQ as a Windows service.

• Delete all of the files and folders in ACTIVEMQ_HOME\Data
• Turn off all persistence
• Delete all of the files and folders in the persistence folder
• Delete the entire ACTIVEMQ_HOME directory and reinstall it in a different folder

I've traced the file activity and cannot find any file that is written to when a topic is created or deleted.

I realize that the .NET client library is a little light on functionality, so I can't even get a list of all the topics programmatically.

Answer 1

Go to your broker configuration file, open the file for editing on the broker element, add the following attribute:

deleteAllMessagesOnStartup="true"

This will cause all previous topics & queues, and their pending messages to be deleted from your kaha store when you restart your broker.

Have Fun!

Answer 2

This question might be old, but a quick and easy way to totally purge all data in ActiveMQ alongwith all queues and topics is to go to the following path:

<ActiveMQ_Installation_Directory>/data

And delete all files in that.

Now once you restart AMQ it will start as a fresh, clean install.