<div id="__MailbirdStyleContent" style="font-size: 10pt;font-family: Arial;color: #000000;text-align: left" dir="ltr">Sorry I was subscribed via the digest so this ended up being a new thread ( i have subscribed for each message ).<div><br></div><div><pre>Are you able to reproduce the problem without any 3rd party
modules? Since nginx itself does not use pipes, this looks like a
pagespeed problem.</pre><pre>Not really we use about 500mb/s of bandwidth with pagespeed turned on and we are using about 2 gigabits a second with it turned off ( although I think that is more hitting the limits of the interconnect ).</pre><pre>I could try a different release. A two minute look at the nginx source shows pipes around upstream I think. Is there a method of working out where an nginx process is stuck ( It does not respond to the normal signals ).</pre></div></div><img class="mailbird" width="1" height="1" style="border:0; width:1; height:1;" src="https://tracking.getmailbird.com/opentrackingpixel/?messageId=Mailbird-b9adcfbd-ae0e-4ae4-8167-150e7b6ee85e@catbus.co.uk&senderHash=F1787C035D24ABEC777BECB23A36785AF368C4F8FB78032263BDCDCCD4B79D98&recipientHash=D837831948A591CC70C565B04A45189CE16B0A1E9E43440A61E101C22B7912C1&internalId=0bd47550-0c53-4b19-8901-ddceae606bbd">