Occasional truncated responses with nginx+passenger

Igor Sysoev igor at sysoev.ru
Mon Jul 26 21:43:46 MSD 2010

On Mon, Jul 26, 2010 at 06:40:44PM +0100, Jonathan del Strother wrote:

> Heya,
> I'm having problems with our nginx setup (nginx 0.7.67 -> passenger
> 2.2.15 -> rails 2.3.6, all running on Solaris 5.11).  Most requests
> are fine, but occasionally - maybe every 1 in 50 - I get a truncated
> response.
> I set up a test script that repeatedly requests a page that's 22kb
> long.  Every so often I get a truncated response body, truncated to a
> multiple of 5KB - usually 15kb.  The header content length still
> indicates 22kb, but only 15kb are transferred according to the
> access.log.
> I wrote some Rack middleware to at least check that the responses
> coming out of Rails were sane, which leaves nginx and/or passenger.
> Any suggestions on tracing it further?

Is anything in nginx error_log ?

Igor Sysoev

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