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Netscape sites very slow today

  • From: Tony Torzillo
  • Date: Wed Jan 07 17:06:28 1998

This may be of interest to anyone who received complaints of slowness to
the Netscape home page yesterday.

You can't use anything in this message to configure your router.

---------- Forwarded message ----------
Date: Wed, 07 Jan 1998 14:48:44 -0700
From: Duane Wessels <[email protected]>
To: [email protected]
Cc: Jeff Halper <[email protected]>
Subject: Re: Netscape sites very slow today 
Resent-Date: Wed, 7 Jan 1998 13:52:20 -0800 (PST)
Resent-From: [email protected]

Yesterday, Jeff Halper asked this on our squid-users list:

>I use parent cache sv - noticed it was uusually slow in fetching sites at
> today - any suggestions?

The problem turned out to be sort of interesting, so I thought I'd share
it with you...

First I thought I'd see if Jeff was imagining things or if there really
was a difference.  So I looked at the "service time" value for
* requests from four days of access logs.  The results

		Median Service
	Date	Time (seconds)
	-----	--------------
	Jan 3	 2.47
	Jan 4	 3.47
	Jan 5	 5.81
	Jan 6	76.17

So obviously, something was seriously wrong.  The next thing to try was
a simple ping:

	sv-wessels> ping
	PING ( 56 data bytes
	64 bytes from icmp_seq=5 ttl=248 time=603 ms
	64 bytes from icmp_seq=6 ttl=248 time=550 ms

Say what?  WWW-UK2?

sv.cache, located at FIX-West, uses for DNS service.
Every time I checked the rest of that day, always
returned, even though the DNS TTL was quite low
(less 15 minutes).


	; <<>> DiG 2.0 <<>> 
	;; ->>HEADER<<- opcode: QUERY , status: NOERROR, id: 10
	;; flags: qr rd ra ; Ques: 1, Ans: 2, Auth: 3, Addit: 3
	;;, type = A, class = IN

	;; ANSWERS:       94      CNAME   2344    A

Looks to me like some DNS smart-resolution feature gone haywire.  I
sent mail to [email protected], but have yet to get a reply.
Since it seemed that was not going to "fix itself" any
time soon, I changed sv's resolv.conf to use a different DNS server
temporarily.  Today, is giving us good answers
(  Shrug.

Duane W.