Hey all,
I’m seeing a strange behavior using the HttpUserIdModule. I am seeing
significantly more set operations that I would expect. The ratio of
about 50% sets to 50% gets remains constant regardless of the days
covered. So, if I include 1 day then percentage is the same as if I
include several days.
The usage pattern of the clients and the sheer volume of users would
indicate that we would not see 50% day after day.
So, on to specifics:
Configuration
userid on;
userid_name uid;
userid_domain xyz.com;
userid_path /;
userid_expires 365d;
userid_p3p ‘policyref=“/w3c/p3p.xml”, CP=“CUR ADM OUR NOR
STA NID”’;
Requests flow in from
Client → DNS load balance → HA load balance → 1 of 6 nginx servers
HA load balance is HAProxy.
There are 6 identically configured servers that accept requests. We are
sending the cookie as a 3rd party cookie - i.e. the cookie comes because
of a javascript on zxc.com which requests something from xyz.com (our
site).
I am trying to figure out if this is a user agent not respecting the
cookie or something else.
Has anyone seen strange results utilizing this setup?
Thanks!