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I'm running a web.py application through Lighttpd via FastCGI, and periodically the server starts returning blank pages with a Content-Length:0 header (pages normally don't supply that header at all).

The problem is intermittent, naturally, so I am very short on clues, and I have no idea what causes the problem as of now. There are no errors reported in any logs; normal operation just suddenly stops. Restarting Lighttpd fixes the problem and everything returns completely to normal.

Any suggestions for things to test or check? Could this be caused by a memory leak in the script being run by FastCGI?

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By any chance your not running comet connections??? There was a bug like this i had seen previously.. – Arenstar Nov 8 '10 at 14:40
Nope. I have found more evidence that my python script may have a memory leak. I'm going to track it but I'm still unsure if that would cause this particular problem...? – Virgil Disgr4ce Nov 10 '10 at 17:27
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