Informix News
18 Nov 13 - ZDNet - Top 20 mobile skills in demand... Read
09 Sep 13 - telecompaper - Shaspa and Tatung have shown a new smart home platform at Ifa in Berlin. Powered by the IBM Informix software... Read
06 Sep 13 - IBM data magazine - Mission Accomplished - Miami, Florida will be the backdrop for the 2014 IIUG Informix Conference... Read
01 Feb 13 - IBM Data Magazine - Are your database backups safe? Lester Knutsen (IBM Champion) writes about database back up safety using "archecker"... Read
14 Nov 12 - IBM - IBM's Big Data For Smart Grid Goes Live In Texas... Read
3 Oct 12 - The Financial - IBM and TransWorks Collaborate to Help Louisiana-Pacific Corporation Achieve Supply Chain Efficiency... Read
28 Aug 12 - techCLOUD9 - Splunk kicks up a SaaS Storm... Read
10 Aug 12 - businessCLOUD9 - Is this the other half of Cloud monitoring?... Read
3 Aug 12 - IBM data management - Supercharging the data warehouse while keeping costs down IBM Informix Warehouse Accelerator (IWA) delivers superior performance for in-memory analytics processing... Read
2 Aug 12 - channelbiz - Oninit Group launches Pay Per Pulse cloud-based service... Read
28 May 12 - Bloor - David Norfolk on the recent Informix benchmark "pretty impressive results"... Read
23 May 12 - DBTA - Informix Genero: A Way to Modernize Informix 4GL Applications... Read
9 Apr 12 - Mastering Data Management - Upping the Informix Ante: Advanced Data Tools... Read
22 Mar 12 - developerWorks - Optimizing Informix database access... Read
14 Mar 12 - - International Informix User Group set to meet in San Diego... Read
1 Mar 12 - IBM Data Management - IIUG Heads West for 2012 - Get ready for sun and sand in San Diego... Read
1 Mar 12 - IBM Data Management - Running Informix on Solid-State Drives.Speed Up Database Access... Read
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
6 Feb 12 - PRLOG - Informix port delivers unlimited database scalability for popular SaaS application ... Read
2 Feb 12 - developerWorks - Loading data with the IBM Informix TimeSeries Plug-in for Data Studio... Read
1 Feb 12 - developerWorks - 100 Tech Tips, #47: Log-in to Fix Central... Read
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
14 Mar 11 - MarketWatch - Fuzzy Logix and IBM Unveil In-Database Analytics for IBM Informix... Read
11 Mar 11 - InvestorPlace - It's Time to Give IBM Props: How many tech stocks are up 53% since the dot-com boom?... Read
9 Mar 11 - DBTA - Database Administration and the Goal of Diminishing Downtime... Read
2 Feb 11 - DBTAs - Informix 11.7 Flexible Grid Provides a Different Way of Looking at Database Servers... Read
27 Jan 11 - exactsolutions - Exact to Add Informix Support to Database Replay, SQL Monitoring Solutions... Read
25 Jan 11 - PR Newswire - Bank of China in the UK Works With IBM to Become a Smarter, Greener Bank... Read
12 Oct 10 - Database Trends and Applications - Informix 11.7: The Beginning of the Next Decade of IBM Informix... Read
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
21 May 10 - CNET - IBM to help people monitor energy use... Read
20 May 10 - ebiz - IBM Teams With Hildebrand To Bring Smart Metering To Homes Across Britain... Read
19 May 10 - The New Blog Times - Misurare il consumo energetico: DEHEMS è pronto... Read
19 May 10 - ZDNet - IBM software in your home? Pact enables five-city smart meter pilot in Europe... Read
17 March 10 - ZDNet (blog) David Morgenstern - TCO: New research finds Macs in the enterprise easier, cheaper to manage than... Read
17 March 2010 - Virtualization Review - ...key components of Big Blue's platform to the commercial cloud such as its WebSphere suite of application ser vers and its DB2 and Informix databases... Read
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

End of Support Dates

IIUG on Facebook IIUG on Twitter

[ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

IDS Forum

Re: ER /checksum failures

Posted By: Madison Pruet
Date: Friday, 17 November 2006, at 11:32 a.m.

The cdr utility is an ESQL/C program and is subject to the issues that =
client program can encounter - locked resources is one of those things.=

While most of the activity that "cdr check" does is reading, when it
encounters an inconsistancy, then it will try to push that row through =
system. That in turn can cause the deadlock problem because it means t=
we're going to have to do some updating.

I would suggest opening a case with tech support on the locked resource=

problem. We could probably do some work to make it so that the tool wa=
s a
bit more robust in such cases.

On the core file. I chose to force a segv when ever the tool encounter=
ed a
logic problem. That way if the tool was used as a background job, at l=
we'd have a core file if things got crazy. Again - I'd open a case. W=
might want to use a debugger or 'adb' on the core file to see what the
problem was. Also, it'd help to have the schema definition of the tabl=
The error that you got indicates that we had some difficulty in determi=
the primary key, but I would have expected to also see an SQL error as =
of the message.

Now to get to what I think that you want to do - which is to ensure

Be aware that unless there is no activity on the system, then there wi=
be changes in flight which can make it appear that there is inconsistan=
where there is not, it's just that the rows are in flight. One thing t=
you might want to do is to run "cdr check -v" which will display the
primary keys of the rows which are currently inconsistant (which could
easily be simply in-flight.) From the primary keys you could manually =
those rows through the system by performing a dummy update.


= =

m =


11/17/2006 09:43 =

AM =

Madison Pruet/Dallas/IBM@IBMUS =


ER /checksum failures =







Checksum is producing the FOLLOWING errors below, does anyone have any =
why it is happening?

Of the 92 replicates 7 fail to work with checksum.

3 fail with "ISAM error: deadlock detected" when running in repair mode=

These same 3 work just fine when run in check only mode.

4 fail with "Memory fault(coredump)"

Informix Version

IBM Informix Dynamic Server Version 10.00.UC4


AIX 5.2 32 bit

For the 3 that fail with "deadlock error"
here is an example of running check sum in check only mode

$ time cdr check repl --all -m g_toltp -r chb_legacy_rel

------ Statistics for chb_legacy_rel ------
Node Rows Extra Missing Mismatch Processed
---------------- --------- --------- --------- --------- ---------
g_toltp 1542937 0 0 0 0
g_trptg 1542958 25 4 89 0

WARNING: replicate is not in sync

real 15m35.95s
user 0m17.90s
sys 0m1.37s

For the 3 that fail with "deadlock error"
here is an example of running check sum in repair mode

Notice how long before failure. Almost at the end.

$ time cdr check repl -R --all -m g_toltp -r chb_legacy_rel

------ Statistics for chb_legacy_rel ------
ERROR Code -243 Isam -143 File Line 4429
fetch of cur_2632

Could not position within a table (%s).

ISAM error: deadlock detected

real 15m14.39s
user 0m17.15s
sys 0m1.83s

for the 4 that core dump
here is an example of running check sum in check only mode

$ time cdr check repl --all -m g_toltp -r quote_cvg

Error at line:4273 - Select index parts for sysadm.quote_cvg


repl-check.ksh[3]: 175450 Memory fault(coredump)

[ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

IDS Forum is maintained by Administrator with WebBBS 5.12.