On Sun, Nov 8, 2009 at 6:33 AM, Wais <hackw...@gmail.com> wrote: > > Hi, > > I've got one machine (x) publish to activemq where there are 2 subscribers > (y, z). y is a databse that logs all the events as they happen within this > system, the z is a machine which acts in response to messages published by > x. > > So, I am worried by this scenario. > > x publishes to active mq, z reacts and also publishes to activemq. This > happens very quickly (probably < 1/5th of a millisecond). What I'm afraid > off is that due to thread switching, the message by z may be picked up by y > before the message by x. Does activemq guarantee the order of messages in > this way?
If you need message ordering you can enable it using the strictOrderDispatchPolicy for a given destination or set of destinations: http://activemq.apache.org/total-ordering.html Bruce -- perl -e 'print unpack("u30","D0G)u8...@4vyy9&5R\"F)R=6-E+G-N>61E<D\!G;6%I;\"YC;VT*" );' ActiveMQ in Action: http://bit.ly/2je6cQ Blog: http://bruceblog.org/ Twitter: http://twitter.com/brucesnyder
