nathan dennis created RF-13109:
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Summary: a4j:push transaction flood
Key: RF-13109
URL: https://issues.jboss.org/browse/RF-13109
Project: RichFaces
Issue Type: Feature Request
Security Level: Public (Everyone can see)
Components: component-a4j-core
Affects Versions: 4.3.1, 4.2.3.Final, 4.2.2.Final
Environment: CHROME,Jboss 7.1.1.Final, Jboss 7.1.3.Final, CentoOS6.X,
Windows 7
Reporter: nathan dennis
long poll doesnt refresh at the 30 second mark. After 5 minutes, Chrome goes
into meltdown, sending a transaction back to the server approx. ever 8 ms
causing DOS and browser lock after about 3 seconds.
Firefox on the other hand returns a cancelled transaction, exits abnormally,
and goes back to behaving as expected with the appearance that it is working
correctly.
This took me forever to find out why this was happening as I couldn't replicate
it with the showcase code... or the test project i built specifically for
figuring this out. In the end I was removing one component at a time until it
started working.
The cause of the issue is found in the jboss-web.xml file. For years, I have
ran apache in front of my jboss installations. I would specify root context to
/ and map the domain straight to it using a virtual host in the jboss server
config file (regardless of the version). AJP in front and away you go. a4j:push
will crash if this context is mapped to / instead of /foo.
I'm going to attempt to attach the sample project to recreate this with. Map
the alias from jboss-web.xml to a virtual server in your standalone.xml file
and start it up. navigate to the consumer link at the top of the app. turn on
your developer tools and wait for the chaos. at the five minute mark you are
going to see death and destruction.
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