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Recently we've had this affliction where if you goto www.omnovia.com,
everything is super ass slow. But if you goto wwwdb1.omnovia.com (or
wwwdb2) everything is blazing fast.
I assume you're talking about direct connection to the realservers here.
Not sure I understand your statement so I'll try to clarify. For some
people, if you goto http://www.omnovia.com/test/speedtest.html, the
picture downloads at 15KB/sec. For some, its normal speed.
www points to .35, our VIP, which routes to RSs .50 (wwwdb1) and .130
(wwwdb2).
Now, if you go directly to an RS:
http://wwwdb1.omnovia.com/test/speedtest.html
http://wwwdb2.omnovia.com/test/speedtest.html
The image downloads much, much faster. (15KB/sec vs 300KB/sec)
Even the same page served from the same machine as www is fast:
http://test.omnovia.com/test/speedtest.html
(test.omnovia.com points to .34 which is an IP on the director. no
special load balancing done on this IP)
is the problem seen from the same client machine during this time or are
random people having the problem
It seems almost random. Here in our office, we have one DSL connection
and all our desktop computers experience this behavior. From my house,
Cable, no issues. From a friend in another city, no issues. From a
customer in Chicago, issues present. ping's and traceroutes to/from all
machines (including DIR and RS) are super fast.
(Since it's only occuring with some clients, I'll assume the problem is
not in LVS, but somewhere else. I know there are flaws in this
assumption, but it's somewhere to start.)
But it's gotta be LVS/DIR right? Since accessing the same page via DIR
vs RS gives differences, and the DIR is the point of entry, wouldn't
that make it a LVS/DIR problem?
Can you do exactly the call from home (or good site) that your customer
in Chicago has problems with?
Yep. We are all doing the same call, that speedtest.html page. Feel
free to try it yourself.
If you can't reproduce the problem from home, you'll have to get the
Chicago person on the phone and tcpdump the connection.
The person in Chicago is a pretty important customer and I don't want
them to know we are having issues. Since our local office is having
problems, I'll tcpdump an office d/l and then one from home. Will post
when I get them.
Otherwise you may have weird hardware in the connection (I know this
won't be easy to track down)
If the hardware was the problem and the hardware hasn't changed since
day 1, wouldn't this problem have affected us from day 1? This problem
has only happened once in the past; about a week ago. It affected us for
about 2-3 days then seemed to clear itself up. Now its happening again.
Thanks Joe.
-Matthew
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