have you seen ActiveMQSession.INDIVIDUAL_ACKNOWLEDGE see http://activemq.apache.org/maven/apidocs/org/apache/activemq/ActiveMQSession.html#INDIVIDUAL_ACKNOWLEDGE
On Wed, Mar 5, 2014 at 6:48 PM, Li Li <fancye...@gmail.com> wrote: > hi all, > I want to process a batch of message using my own priority > algorithm. But in JMS, I can't acknowledge a single message and can > only acknowledge a session. So I decide to do it like this: > 1. Create N(=10000) sessions > 2. using a thread to manage session acknowledge like: > for(int i=0;i<N;i++){ > if session acknowledged{ > receive A Message without waiting; > put this message to my own priority queue; > } > } > 3. using another thread to process my own queue; > get a message from my own queue; > process this message; > get the session of this message; > acknowledge this session; > > because a session will receive only a message a time and it > will be blocked until this message is processed. I need create many > sessions(maybe I can make session a pool) . I don't know whether > activemq can deal with so much session. for a single consumer, I will > create 10000 session. if I have ten consumers, then 100,000 session be > created at the same time. >