Do you get the same results when the prefetch is zero? - see http://activemq.apache.org/what-is-the-prefetch-limit-for.html
to see how to set prefetch limits
cheers,
Rob
Rob Davies
http://fusesource.com
http://rajdavies.blogspot.com/
On 2 Dec 2008, at 23:52, skomarla wrote:
hate bumping, but bump... Also, this might be related:
https://issues.apache.org/activemq/browse/AMQ-2016
If anyone has any input, it would be greatly appreciated.
Thanks.
skomarla wrote:
http://www.nabble.com/file/p20627785/msg-group-test.zip
msg-group-test.zip
I have posted my comments in
https://issues.apache.org/activemq/browse/AMQ-1126 since I originally
thought it might be related to the RA, but I'm not sure if it is
localized
to the RA.
Attached is a unit test and some sample code.. It has a junit test
with
two tests in it.
Both tests start out with sending some message to a same queue split
across three different group ids (20 to group A, 10 to group B, 5
to group
C). My understanding of message groups leads me to believe that the
messages within a group are delivered sequentially, but across the
groups
they are delivered in parallel.
If you look at the output of the unit tests, it does not seem to be
the
case. in many cases, it seems the messages get delivered in FIFO
order
ignoring groups entirely... in the listeners, I have setup various
sleeps
to simulate slow consumers.. When the message is from group C, the
sleep
time is small, and thus all 5 messages from group C should be
delivered
before the second message from group is delivered.. it does not
seem to be
the case
1 test uses the connection factory directly to setup message
consumers,
and another uses spring's listener container. Neither seem to do
what I
expect. Maybe I just have something setup horribly incorrectly, but
I've
seen the exact same bahaviour using the RA.
Sorry for the double post, but I figured i'd post in the user forum
as
well.. soem log output is in the JIRA issue..
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