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[lvs-users] HTTP Uploads failing when traffic via CloudFlare

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: [lvs-users] HTTP Uploads failing when traffic via CloudFlare
From: Nilesh Govindrajan <me@xxxxxxxxxxxx>
Date: Wed, 2 Jul 2014 19:19:36 +0530
Hi,

We have a setup - 1 director and 2 real servers and LVS TUN is used
because they're located at different places.

Now, the problem is that whenever someone tries to upload a large
image (~400 KB) via CloudFlare, it just gets stuck and fails. The same
works when I do it directly.

Tried contacting CloudFlare, and they say everything is right on their side.

I suspect this has something to do with LVS Tun. What could be the problem?

Tried setting MTU = 1400 as per
http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.LVS-Tun.html#setting_mtu_by_route
but that doesn't help either.

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