sorry max heap is 1G, not 4G
On Fri, Mar 28, 2014 at 3:23 PM, Li Li <fancye...@gmail.com> wrote: > I am using the default configuration(maximum 4G heap) and <memoryUsage > percentOfJvmHeap="70" /> > I send many small size TextMessages to server and it hangs > > I use jmap -heap and found that the free memory is less than 100MB and > the server can do nothing but do gc. but gc can't free anything. > client can't even connect to server. > I use ./bin/activemq stop and it fails to stop server. > I have to kill -o pid > > I guess the reason is that: activemq estimate memory by string size. > but for small trings, the heap are all small fragmentations. > > I modify percentOfJvmHeap to 50 and it works better but after long > time, it still occurs.
