I'll bet dollars to donuts it's the network that caused the outages. If it
were a software fault in IBM i it would have been far more widespread and
you've seen different types of errors.
I think you might have a switch or router somewhere that's causing the
issue.
--
Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Steinmetz, Paul
Sent: Tuesday, February 07, 2017 3:43 PM
To: 'Midrange Systems Technical Discussion'
Subject: RE: What would cause hundreds of interactive users all start
dropping, from multiple LPARs
Started at 12:45.
Multiple iSeries LPARs - Pencor05, Pencor06, Pencor07, Penco08 My
connections to 4 different LPARS, 3 different NICS, all at the same time.
Not all users at once.
About 20 every minute.
Each user only once (so far)
No entries in any logs. PAL, LIC, QHST
Problem appears to have stopped around 14:25.
iSeries performance graph showed high number of TCP connection resets during
the 12:45 thru 14:25 problem window.
from 3 LPARS, 3 different NICs
Appears that only 5250 Client Access and GUI was impacted (PC traffic). from
3 LPARS, 3 different NICs All other applications (hundreds) connecting to
both internal and external remotes were fine.
Possibly an issue with QTVDEVICE jobs ???
CPF5140 Diagnostic 70 02/07/17 12:45:56.790988 QWSERROR
QSYS 0630 QWSGET QSYS 067C
Message . . . . : Session stopped by
a request from device QPADEV004S.
CPF5503 Diagnostic 30 02/07/17 12:45:56.791059 QWSERROR
QSYS 0652 QWSGET QSYS 067C
Message . . . . : Input or Output
request failed. See message CPF5140.
Paul
-----Original Message-----
From: Steinmetz, Paul
Sent: Tuesday, February 07, 2017 2:06 PM
To: 'Midrange Systems Technical Discussion'
Subject: RE: What would cause hundreds of interactive users all start
dropping, from multiple LPARs
Problem still occurring.
Started at 12:53.
Not all users at once.
About 20 every minute.
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Ken
Meade
Sent: Tuesday, February 07, 2017 1:45 PM
To: Midrange Systems Technical Discussion
Subject: RE: What would cause hundreds of interactive users all start
dropping, from multiple LPARs
We saw something similar a few years ago. Turned out it was a glitch in an
addressing table in one of our switches.
-----Original Message-----
From: James H. H. Lampert [mailto:jamesl@xxxxxxxxxxxxxxxxx]
Sent: Tuesday, February 07, 2017 1:40 PM
To: Midrange Systems Technical Discussion
Subject: Re: What would cause hundreds of interactive users all start
dropping, from multiple LPARs
On 2/7/17, 10:34 AM, Steinmetz, Paul wrote:
What would cause hundreds of interactive users all start dropping,
from
multiple LPARS
Massive communications glitch?
--
JHHL
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