Sudden error condition this morning

Tom Zeller tzeller at dragonacea.biz
Tue Sep 22 13:50:53 EDT 2015


> On Sep 22, 2015, at 12:31 PM, Bryan Wooten <bryan.wooten at utah.edu> wrote:
> 
> I am seeing this on occasion also, but not with Shib. I get it with CAS.
>  
> Like this:
>  
> localhost.2014-09-20.log-20140920-221501.gz:SEVERE: Servlet.service() for servlet [cas] in context with path [/cas] threw exception [Request processing failed; nested exception is org.springframework.webflow.conversation.impl.LockTimeoutException: Unable to acquire conversation lock after 30 seconds] with root cause
> localhost.2014-09-20.log-20140920-221501.gz:org.springframework.webflow.conversation.impl.LockTimeoutException: Unable to acquire conversation lock after 30 seconds
>  
> This apparently a very difficult problem to solve. It involves finding a slow running process. This thread showing the error is not the issue. It is something before it.
>  
> See this:
>  
> http://stackoverflow.com/questions/9533786/spring-web-flow-locktimeoutexception
>  
> I am still fighting this issue, it is hard to figure out because I can’t recreate it at will and is only random in production….

Over in IDP-789 a FlowExecutionListener was added for a different purpose, maybe a listener could be written to help with additional logging. Not sure exactly what it would log though.


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