Ouch. I don’t see any explicit log statements, at least not in 4.0 but one 
thing you can do is turn up TRACE levels for org.jasig.cas.support.saml

That should tell you everything.



I’ll see if I can add some extra log statements.



From: David A. Kovacic [mailto:[email protected]]
Sent: Wednesday, December 10, 2014 1:17 PM
To: [email protected]
Subject: Re: [cas-user] Rapid Memory Consumption and Interpreting Heap Dump



Does anyone know what I would need to do to be able to log the actual SAML 
transactions?  Is there any way to actually do that?  We have isolated this 
issue to only logins to Google and only under certain conditions when 
something seems to start looping and generating STs rapidly.  We are trying 
to isolate the conditions under which the loop starts.

It would be helpful to actually see the SAML transactions being generated so 
we could begin to get a handle on what Google apps is being referenced and 
if Google is returning any errors or not (although Google claims valid 
logins).



On 12/6/14 9:11 AM, Marvin Addison wrote:

Second, the massive number of  STs are being created on only one server (we 
can tell by the host name in the logged ST) but the OTHER SERVER is where 
the memory is growing out of bounds.



I'm still working through this thread, but I wanted to point out that the 
other is hurting likely because of load balancer session affinity. Recall 
that ticket validation is a back-channel call, and the network source 
differs from that of the user's browser. In our environment, services 
typically get stuck on one node causing hot spots. This is because the 
service is validating tickets frequently enough that the session affinity 
timeout never kicks in.



M



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