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IDS Forum

RE: network errors

Posted By: Kennedy, Randy
Date: Monday, 13 December 2010, at 4:24 p.m.

In Response To: Re: network errors (Art Kagel)

We only have 1 port and the highest maximum connections count from the
log is 268 earlier this year and has been consistently between 210-250
for the past couple of years.

Our onconfig is set as:
NETTYPE soctcp,4,150,NET
NETTYPE ipcshm,1,25,NET

Thanks,
Randy

-----Original Message-----
From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of
Art Kagel
Sent: Monday, December 13, 2010 2:07 PM
To: ids@iiug.org
Subject: Re: network errors [22209]

On HP/UX errno 232 is "Connection reset by peer" and 233 id "No buffer
space
available". The latter, more common error, sounds like the network
drivers
are being saturated. How many active concurrent connections do you have
at
the times when this is happening? A single poll threadr can handle up to

about 1000 connections, however, IBM recommends configuring so that a
thread
handles no more than about 350 connections. One solution may be to
increase
the number of poll threads, however, it if is new connections that are
the
problem, then you probably should configure one or two additional ports
(each with its own DBSERVERALIAS) so that there will be multiple
listener
threads listening for new connections and set things up so that the
users
are balanced across the two or three ports. You will have to bounce the
server to implement this solution.

BTW, in IDS 11.70 you can increase the number of listener threads on a
single port in the ONCONFIG file or dynamically making configuring and
resolving problems like this easier. IDS 11.70 also has additional
features
to reduce the overhead of connecting to the server which reduced the
load so
these problems are less common.

Art

Art S. Kagel
Advanced DataTools (www.advancedatatools.com)
IIUG Board of Directors (art@iiug.org)
Blog: http://informix-myview.blogspot.com/

Disclaimer: Please keep in mind that my own opinions are my own opinions
and
do not reflect on my employer, Advanced DataTools, the IIUG, nor any
other
organization with which I am associated either explicitly, implicitly,
or by
inference. Neither do those opinions reflect those of other individuals
affiliated with any entity with which I am affiliated nor those of the
entities themselves.

On Mon, Dec 13, 2010 at 3:44 PM, Kennedy, Randy
<RKennedy@scottsdaleaz.gov>wrote:

> OS: HP/UX 11.11 IDS: 9.4FC3 (we are in the process of upgrading,
> but new server/db not ready for production yet)
>
> We started seeing these errors in our log Friday when users complained

> of not being able to connect. We checked back over time and there have

> been a few here and there, but Friday we had 50+ and today we have
100+
> and counting and are users are having a difficult time
connecting/using
> the system.
>
> The majority are:
> listener-thread: err = -25573: oserr = 233: errstr = : Network driver
> cannot accept a connection on the port.
>
> but we also see a few:
> listener-thread: err = -25580: oserr = 232: errstr = : System error
> occurred in network function.
>
> Nothing has changed on the server recently and network folks are
telling
> us that nothing has changed with them.
> Any ideas on what/where to look for/check/change to stop these errors?

>
> TIA,
> Randy
>
>
>
>
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