[isapros] FW: Connectivity Verifier Weirdness
- From: Jason Jones <Jason.Jones@xxxxxxxxxxxxxxxxx>
- To: "isapros@xxxxxxxxxxxxx" <isapros@xxxxxxxxxxxxx>
- Date: Fri, 22 Feb 2008 16:17:31 +0000
Here is an example of the IIS log (.11 is node 1, .12 is node 2):
2008-02-22 00:00:06 W3SVC## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.11
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
2008-02-22 00:00:09 W3SVC## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.11
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
2008-02-22 00:00:14 W3SCV## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.12
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
2008-02-22 00:00:18 W3SCV## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.11
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
2008-02-22 00:00:18 W3SCV## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.11
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
2008-02-22 00:00:36 W3SCV## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.11
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
2008-02-22 00:00:39 W3SCV## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.11
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
2008-02-22 00:00:44 W3SCV## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.12
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
2008-02-22 00:00:48 W3SCV## A.B.C.D GET /something/Default.aspx - 80 - X.Y.Z.11
Mozilla/4.0+(ISA+Server+Connectivity+Check) 200 0 0
Node 2 is the expected 30 seconds apart, but node 1 does 3 extra checks in
between...weird!
Cheers
JJ
_____________________________________________
From: Jason Jones
Sent: 22 February 2008 16:10
To: 'isapros@xxxxxxxxxxxxx'
Subject: Connectivity Verifier Weirdness
Hi,
We have a customer who claims that their web server logs shows connectivity
verifiers checks happening more frequently from one particular node, of a two
node array.
Looking at the firewall logs, I see a steady stream of 1 check per array member
every 30 seconds (as per expected).
However, they have now produced an IIS log which shows node 1 making four
connections for every one connection from node 2.
Any ideas???
Cheers
JJ
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