Follow up in case anyone else finds this thread. Based on empirical data, the broker stopped dispatching messages to the consumer due to a time sync/TTL issue. The consumer was correctly waiting in the apr_socket_recv() method.
I found that if the broker and consumer (on separate machines) had a time sync difference greater than the TTL the broker stopped dispatching messages to the consumer. Has anyone else seen a similar problem? davery wrote > I was able to reproduce the problem and get a stack trace for the hanging > thread. It appears to be waiting for data from the ActiveMQ broker. > > #0 0xb76f4424 in __kernel_vsyscall () > #1 0xb76e09db in read () from /lib/i386-linux-gnu/libpthread.so.0 > #2 0xb6bee435 in read (__nbytes= > <optimized out> > , __buf=0xb6005838, __fd= > <optimized out> > ) > at /usr/include/i386-linux-gnu/bits/unistd.h:45 > #3 apr_socket_recv (sock=0xb6003888, buf=0xb6005838 "", len=0xb41fee38) > at network_io/unix/sendrecv.c:81 -- View this message in context: http://activemq.2283324.n4.nabble.com/ActiveMQ-consumers-stop-accepting-messages-tp4678923p4679174.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.