Howdy,
Has anybody had issues with the schedule_Worker-# threads deadlocking?
I suspect this might be my issue because when the quartz triggered
decrementCounts stops (part of login throttling), the ticket cleaning
and reloading from the service registry also stop functioning. All
three tasks are performed by schedule_Worker-# threads.
Our tomcat uses the following defaults:
maxThreads default 200
minSpareThreads default 25
maxIdleTime default 1 min
I notice the thread count for our CAS instance is quite high. I just
cycled the instance and it has 125 threads in the process already. It
eventually approaches the limit of 200.
I'm getting the JMX connector installed so I can use jconsole to debug
further and confirm a deadlock is occurring.
Any further debugging tips or info on related bugs is appreciated.
Thanks,
Matt
On 03/07/2012 08:20 AM, Matthew Selwood wrote:
Any thoughts from anybody? All suggestions are appreciated.
Thanks,
Matt
________________________________________
From: Matthew Selwood [[email protected]]
Sent: March 5, 2012 12:08 PM
To:[email protected]
Subject: [cas-user] throttling login attempts /w Inspektr issue
Howdy,
I'm currently running CAS 3.4.6 with login throttling using Inspektr.
I'm having a problem where people are getting permanently throttled. It
looks like the decrementCounts() function isn't being called as I don't
see the log entry (should be something like this:
"support.InMemoryThrottledSubmissionByIpAddressAndUsernameHandlerInterceptorAdapter.[]
- Decrementing counts for throttler. Starting key count: 0"). There
are no errors thrown in the cas.log, so I'm a bit lost at how to debug
this issue. If I restart the CAS server it starts logged the decrement
counts in cas.log and working properly.
Has anybody seen this problem before or have any thoughts?
Thanks,
Matt
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