While working with some project @ my current workplace, we came across a situation where we are using pg2 process group. Apparently pg2 does not load balance across processes registered in the pg2 group. It usually done in round robin way. So it may happen that even though many processes are registered under same group, but all messages will get queues in single process.

My co-worker and I came with an algorithm to solve this. It is describe here.

Advertisements