Informix News
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28 May 12 - Bloor - David Norfolk on the recent Informix benchmark "pretty impressive results"... Read
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22 Mar 12 - developerWorks - Optimizing Informix database access... Read
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1 Mar 12 - IBM Data Management - IIUG Heads West for 2012 - Get ready for sun and sand in San Diego... Read
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26 Feb 12 - - Better results, lower cost for a broad set of new IBM clients and partners... Read
24 Feb 12 - developerWorks - Informix Warehouse Accelerator: Continuous Acceleration during Data Refresh... Read
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13 Jan 12 - MC Press online - Informix Dynamic Server Entices New Users with Free Production Edition ... Read
11 Jan 12 - Computerworld - Ecologic Analytics and Landis+Gyr -- Suitors Decide to Tie the Knot... Read
9 Jan 12 - - DNS impact on Informix / Impacto do DNS no Informix... Read
8 Sep 11 - - IBM Offers Database Solution to Enable Smart Meter Data Capture... Read
1 Aug 11 - IBM Data Management Magazine - IIUG user view: Happy 10th anniversary to IBM and Informix... Read
8 Jul 11 - Database Trends and Applications - Managing Time Series Data with Informix... Read
31 May 11 - Smart Grid - The meter data management pitfall utilities are overlooking... Read
27 May 11 - IBM Data Management Magazine - IIUG user view: Big data, big time ( Series data, warehouse acceleration, and 4GLs )... Read
16 May 11 - Business Wire - HiT Software Announces DBMoto for Enterprise Integration, Adds Informix. Log-based Change Data Capture... Read
21 Mar 11 - Yahoo! Finance - IBM and Cable&Wireless Worldwide Announce UK Smart Energy Cloud... Read
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11 Mar 11 - InvestorPlace - It's Time to Give IBM Props: How many tech stocks are up 53% since the dot-com boom?... Read
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20 Sep 10 - - ITG analyst paper: Cost/Benefit case for IBM Informix as compared to Microsoft SQL Server... Read
20 Jul 10 - IBM Announcements - IBM Informix Choice Edition V11.50 helps deploy low-cost scalable and reliable solutions for Apple Macintosh and Microsoft Windows... Read
20 Jul 10 - IBM Announcements - Software withdrawal: Elite Support for Informix Ultimate-C Edition... Read
24 May 10 - eWeek Europe - IBM Supplies Database Tech For EU Smart Grid... Read
23 May 10 - SiliconIndia - IBM's smart metering system allows wise use of energy... Read
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10 February 2010 - The Wall Street Journal - International Business Machines is expanding an initiative to win over students and professors on its products. How do they lure the college crowd?... Read

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IDS Forum


Date: Monday, 29 February 2016, at 4:15 p.m.

In Response To: Re: IFX_XFER_SHMBASE (BillHatVerizon)


We've been using informix workgroup edition on windows for some years now, although currently on server 2012r2. Since the problem just started none of the following may apply, but mention them in case any of it helps.

If you are logged in as the administrator account try logging in with the informix account. If you are logged in as informix try running commands in an elevated command prompt. I've found a few issues with some of the 'on' commands not behaving unless using informix in an elevated command prompt, although onstat normally runs regardless of this. You don't have a mixed case instance name perchance, I've had that affect some 'on' commands also?

Since everything else is running it is probably not memory. Memory related you use to have to set a few things in onconfig file, but most of that is no longer necessary with latest informix, like SHMNOACCESS to exclude memory ranges of the system dll's or other programs. If you've got loads of memory you could set the SHMBASE above the 4GB mark (I think windows dll's hang around just below there) to see if it makes a difference but again should no longer be necessary:
SHMBASE 0x141460000L #around the 5GB mark
(we usually set this base to 0x80000000L although i think the default may be a lot lower).
And for completeness tend to use these settings with success:
SHMADD 204800 #add in 200mb lots

Sysinternals (now Microsoft) ProcessExplorer can show you where things have been loaded into memory that may be conflicting...

That's all I've got.

Bryce Stenberg
IT Department
Harness Racing New Zealand Inc.

-----Original Message-----
From: BillHatVerizon
Sent: Monday, 29 February 2016, at 11:52 a.m.

I am on the server itself (development server) .
INFORMIXSERVER is set to the name of the instance.
The service is 9088.
IDS is running well and odbc connections run fine.
dbaccess even works.
It is just onstat, oncheck, etc.
I don't know how to do what you are telling me.

-----Original Message-----
From: Mike Walker
Sent: Monday, February 29, 2016 10:34 AM

I'm not sure that you need to change IFX_XFER_SHMBASE here.

Do you have your INFORMIXSERVER value set to a network connection? If so, do
you have a shared memory connection that you can use for INFORMIXSERVER
instead and see what happens?

-----Original Message-----
From: BillHatVerizon
Sent: Monday, February 29, 2016 9:04 AM

This is ids12.1.tc4 on windows server 2008 R2 sp1 .
This problem just started and I don√Ę‚¨‚Ęt know why.

When I run onstat I get this:
MapViewOfFileEx: w32ec=487 at nt_shm.c:754
09:51:19 shmat: [22]: operating system error
09:51:19 Client could not attach server shared memory segment, use
onstat: Cannot attach to shared memory. errno = 22

This article is on Linux ...

this is another

In Windows, I presume they want me to √Ę‚¨Ňset
IFX_XFER_SHMBASE=someaddress√Ę‚¨¬Ě .
But the conundrum is that I cannot run onstat √Ę‚¨‚g seg to get an
to use.
Any ideas?

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