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https://issues.apache.org/jira/browse/AMQ-3094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Dean reopened AMQ-3094:
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Dejan: Take a look at the message properties in
https://issues.apache.org/jira/secure/attachment/12466851/write_message_response_debugging_output.txt.
There are four messages here, but only 1 of them gets delivered.
The interesting bits are these:
message=<message type="chat" from="test-user">message two</message>
text = <message type="chat" from="test-user">message five</message>
destination = topic://CHAT.DEMO
m1=<message type="chat" from="test-user">message three</message>
m2=<message type="chat" from="test-user">message four</message>
m3=<message type="chat" from="test-user">message five</message>
t1=send
t3=send
t2=send
d1=topic://CHAT.DEMO
d2=topic://CHAT.DEMO
d3=topic://CHAT.DEMO
When an ajax client sends many messages in a short amount of time, they are
then delivered to other clients in a single ActiveMQTextMessage.
writeMessageResponse() doesn't handle this properly, and only delivers one of
the messages to a subscriber.
I'm not sure if this is a problem on the sending or receiving side. (Is it
legitimate to have multiple messages piled into a single ActiveMQTextMessage
like this?) I agree the junit test now passes, but I don't think the issue is
resolved yet. I'll work on getting some more tests created which reproduce
this issue. For now, you should be able to reproduce it using the
chat-send.html script I've already attached to the ticket.
> ajax client does not receive all messages
> -----------------------------------------
>
> Key: AMQ-3094
> URL: https://issues.apache.org/jira/browse/AMQ-3094
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.4.2
> Environment: OSX 10.6 on MacBook Pro
> java version "1.6.0_20"
> Java(TM) SE Runtime Environment (build 1.6.0_20-b02-279-10M3065)
> Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01-279, mixed mode)
> Reporter: Alex Dean
> Assignee: Dejan Bosanac
> Fix For: 5.5.0
>
> Attachments: AjaxTest-output.txt, AjaxTest.java, chat-send.html,
> include-commons-httpclient-in-pom-xml.patch,
> write_message_response_debugging.patch,
> write_message_response_debugging_output.txt
>
>
> Not all messages written to a destination are delivered to an ajax client.
> This seems particularly true if more than 1 message should be returned to a
> client at once. Often, if 5 messages are available, only the first 1 is
> actually returned in the <ajax-response> XML. The other 4 are lost.
> Steps to reproduce:
> * Place the attached chat-sent.html in activemq/webapps/demo/ (or in
> activemq-trunk/activemq-web-demo/src/main/webapp in an svn working copy).
> * Start ActiveMQ.
> * Browse to http://localhost:8161/demo/chat.html & join the chat room.
> * In a new window, browse to http://localhost:8161/demo/chat-send.html
> chat-send.html will send 5 message to topic://CHAT.DEMO. Only 1 (or
> sometimes 2) messages will be received by the original browser window which
> is subscribed to the topic. The activemq web admin will verify that 5
> messages were actually sent.
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