I'd run to the internet provider with your information (assuming these
transactions are from outside). If not I think Bryan suggested TRACEROUTE
since that will most likely point to the network gear that is causing the
problem.
Is there any BGP circuits that could be cutting over to a secondary about
that time?
--
Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of
Steinmetz, Paul via MIDRANGE-L
Sent: Monday, March 16, 2020 1:06 PM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxxxxxxxx>
Cc: Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>
Subject: HTTP intermittent daily failures, only between 4:02:30 thru 4:04:30
We are having HTTP intermittent daily failures, only between 4:02:30 thru
4:04:30.
Majority of the transactions are successful within the same window.
The problem has existed since May 2018.
We now have a 2nd, new HTTP app, different IP and port, presenting the same
issue.
Not a load issue.
We run tens of thousands transactions later in the day, not a single error.
Both use non-persistent connections, meaning we open/close the ports for
every process.
V7R3, latest cume and groups.
NonSSL.
I side - RPGLE client application utilizing RXS_Transmit() Remote - 3rd
party proprietary apps.
5 hops, 3 firewalls, several switches and routers.
From a WireShark pcap trace run from the I, IBM confirmed that RST flag is
being set, from the remote IP, causing the connection to reset/close.
We've been unable to determine the cause the RST.
What process and where would this be running for this brief two minutes
window (4:02:30 thru 4:04:30) that would cause RST, reset/closing the
connection.
Anyone in the group experience similar behavior and/or know how to isolate
the root cause/resolution?
Thank You
_____
Paul Steinmetz
IBM i Systems Administrator
Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071
610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home
psteinmetz@xxxxxxxxxx<mailto:psteinmetz@xxxxxxxxxx>
http://www.pencor.com/
--
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