3 Replies Latest reply on Sep 7, 2011 1:03 PM by puspendu.banerjee

Richfaces 4 Push problem

umajeric Aug 12, 2011 5:10 AM

Hi all,

I have a problem with push. My app is continuously reading events from database. Events are comming in from 30 to 2000 milliseconds. On every event I am sending message to the topic. Page (which has a4j:push) is rerendering as expected for a while, but then suddenly rerendering stops for couple of seconds (no events are coming - looking at the firebug console in firefox). Then after couple of seconds all events are received to firefox. Then everything work OK for a while, and then we go all over again.

I tried to connect to this topic with other client and messages are successfully recieved continuously (when in firefox this events are not coming).

I am using: JBoss 6.0.0.Final on Debian Lenny, Richfaces 4.0.0, JSF 2, Servlet 3.0 and tried with Firefox 3.5 to 5.0.1.

Is there any known issue with to many events on push?

Thanks,

Uros

1. Re: Richfaces 4 Push problem

puspendu.banerjee Sep 7, 2011 2:38 AM (in response to umajeric)

Even if everything else works well, you should consider the limitation of maximum number of allowed TCP connection per second, imposed by your browser and/or OS.

By The way, are you sending ObjectMessage or TextMessage? I have faced a challenge to deserialize ObjectMessage and reported a bug at https://issues.jboss.org/browse/RF-11377
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2. Re: Richfaces 4 Push problem

umajeric Sep 7, 2011 3:47 AM (in response to puspendu.banerjee)

What did you think with "consider the limitation of maximum number of allowed TCP connection per second, imposed by your browser and/or OS"? I have now limited sending messages with delay (which is 500 ms) - that means maximum 2 per seconds are sent. And it looks like it works now (this behaviour (described above) didn't happen so far). I am sending TextMessage(s).

Thanks for your time.
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3. Re: Richfaces 4 Push problem

puspendu.banerjee Sep 7, 2011 1:03 PM (in response to umajeric)

Hi,

Please go through Overview of flood mitigation & Increasing the maximum number of tcp/ip connections in linux
If you get a chance, please try to check with some object message. You can use the sample I have updoaled with the bug report.

Thank You.
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