Forum Discussion

Zhinjio_101470's avatar
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Jun 07, 2011

Proxy error on long queries

We have an F5 that sits in front of a pool of application servers running a jboss instance and app.



Persistence is done on jsessionid via iRule.



The app ultimately queries against a larger db. With the F5 in place and managing the connections, if I execute a long-running query in the application that exceeds around 20000 records, after roughly 5 minutes, I eventually get back:



Proxy Error



The proxy server has received an invalid response from an upstream server.


The proxy server could not handle the request GET /my/path/to/QueryContainer.html



Reason: Error reading from remote server.



If we remove the F5, and just point the client directly to the jboss server, no error occurs.



I've played with nearly every timeout value I could find. I'm running out ideas on what might be causing this. Please me know if you would like any additional information that I can gather (and if its suitably arcane, the method for gathering those items as well.



Much appreciated,



- Mark Breitenbach


2 Replies

  • Hi Mark,



    I'd start with this SOL:



    sol7606: Overview of BIG-IP idle session timeouts




    If you're still stuck, you could open a case with F5 Support and ask them to help review your config to find the source of the time out.



  • That SOL confirmed my own understanding of the way timeouts work. Thank you. I've opened a ticket.