ActiveMQ with persistence in a database
Are any of you running ActiveMQ with persistence in a database? Even better, in an Oracle database? We’re wanting to replace our current JMQ uses with ActiveMQ. The plan is to have two machines (one hot, one failover) that share an ActiveMQ queue, so that the failover can pick up where the hot machine left off. In testing with file-based persistence, this works great. However, giving both machines access to some fast file space is [...]
Continue Reading »ActiveMQ – Stomp + NIO
I currently use ActiveMQ to serve a STOMP message queue with several topics. As we are now starting to get several thousand connections to the queue, I have been trying to implement NIO to reduce the number of threads used. Following the documentation, I have modified my configuration to add NIO as follows: However, when testing I am still getting two threads per connection – one named NIO Transport Thread and another named BrokerService. I [...]
Continue Reading »Encrypting MSMQ
So I want to do asynchronous, disconnected, across-the-Internet messaging with WCF. Probably due to my background in Apache ActiveMQ, I’m looking at MSMQ for this. In ActiveMQ, it was a simple thing to encrypt a queue connection; you simply chose an SSL based connection to the broker, and you had a basic SSL layer to protect your communication between the broker and the clients. (Should I consider using WCF clients with an ActiveMQ broker?) When [...]
Continue Reading »high level design of sms transaction handling system
I have been tasked with designing a system do handle SMS transactions. Transactions come in form of HTTP requests from a service provider. In the process of handling transaction, system in question will need to contact several other systems outside of my control, and do some processing. I can choose pretty much everything, ranging from the language of implementation to database that will be used. I would like this system to scale well and to [...]
Continue Reading »activemq on window: can’t start service as LocalSystem account
I’m trying to run activemq as a service on my windows7 machine, service install properly, but it does not start as LocalSystem account. It works perfectly if I start it with logon property as my user. Unfortunately there is nothing in the log file ( it is actually not created if I start as LocalSystem). Binary msmq files are located under Program Files, can this be a problem too ? Thanks for any advice, Felice [...]
Continue Reading »deleting nohup.out file
I have a file called “nohup.out”. It is consuming a lot of space and I will like to remove it. /opt/apache-activemq-5.2.0/bin/nohup.out: 4.2G Will it affect the application in any way? I do not want logs, only disk space. That’s the output of a file produced by the nohup program, which is used to run things in the context of a shell, but without the program being killed when the shell is exited. You can delete [...]
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