eherber's blog

IDS 11.50.xC2 - Minor Upgrade Problems

eherber — Mon, 01 Sep 2008 19:27:16 +0200

IDS 11.50.xC2 - Minor Upgrade Problems

I just upgraded my test IDS MACH cluster from IDS 11.50.FC1 to 11.50.FC2 and encountered two minor problems:

The SDS server didn't come up after the upgrade. It stuck in fast recovery and the Primary Server was blocked in a checkpoint. I was able to shutdown the SDS server via 'onmode -ky' but needed to kill the Primary server. After starting the Primary Server again, I dropped the SDS server via 'onmode -d delete SDS ', re-added it thru 'onmode -d add SDS ' and re-started the SDS node. Same situation again, it stuck in 'fast recovery'. After another restart, I dropped the 'sysha' database, re-added my SDS node and everything runs fine know. However I didn't find anything in the IDS 11.50.xC2 Releasenotes that this needs to be done when upgrading from 11.50.xC1 to 11.50.xC2.

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Extending the Open Admin Tool (OAT)

eherber — Fri, 15 Aug 2008 10:57:05 +0200

Extending the Open Admin Tool (OAT)

If you like programming in PHP, you might be interested in developing new functionality for the OAT (Open Admin Tool). A new Plug-In Manager makes it now easier to develop and integrate your own OAT PHP modules. An interesting article from Erika Von Bargen, which describes this new functionality, has been recently published on IBM developerWorks:

New Content at the IDS Wiki

eherber — Fri, 01 Aug 2008 20:57:09 +0200

New Content at the IDS Wiki

New content has arrived at the IDS Developer Edition Wiki:

onstat Commands (Message Log) - Thank you Spokey for writing this article !
HDR - High Availability Data Replication

Making your online.log more readable with IDS 11.5

eherber — Thu, 31 Jul 2008 21:15:43 +0200

Making your online.log more readable with IDS 11.5

IDS 11.5 comes with a helpful new onconfig parameter which I didn't realize during the closed beta. It is also not mentioned in the New Features section in the releasenotes.

The name of the onconfig paramter is MSG_DATE and the allowed values are 0 (disabled, DEFAULT) and 1 (enabled). It could be dynamically set thru onmode -w[f|m]. If MSG_DATE is enabled, every message written to the online.log will be prefixed with the current date. Take a look at the following examples:

IDS 11.5 Presentation

eherber — Mon, 28 Jul 2008 19:11:25 +0200

IDS 11.5 Presentation

While surfing the Internet I discovered the following interesting presentation. It covers the business continuity features of IDS 11.5:

IDS 11.5 - MACH Your Business Continuity

More information about IDS 11.5 can be found here:

DBTA Magazine: Inside Informix V11.5

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Informix moves on ?

eherber — Fri, 18 Jul 2008 14:29:13 +0200

Informix moves on ?

IBM just published their Q2 results and the Information Management software segment, where IDS is a part of, increased by 30 %. Unfortunately IBM doesn't report numbers on individual products but looking at the high growth rate of IDS in 2006 and 2007 it is most likely that INFORMIX is the driving force behind those exceptional results.

As a result of the increased demand for IDS, we have now two new distributors here in Germany which are authorized to sell the INFORMIX product portfolio beside the well known Bytec GmbH:

SMI Query Series - Dbspace Sizes

eherber — Thu, 10 Jul 2008 21:25:17 +0200

SMI Query Series - Dbspace Sizes

The sysmaster interface (SMI) presents a comfortable way to extract information about various parts of your running IDS instance. This information can be used for:

ad hoc analysis of performance problems
determining the status of several IDS sub components
monitoring replication metrics
sampling data for capacity planning purposes

SMI Query Series - Logical Log Space Used

eherber — Fri, 18 Apr 2008 11:08:31 +0200

SMI Query Series - Logical Log Space Used

The sysmaster interface (SMI) presents a comfortable way to extract information about various parts of your running IDS instance. This information can be used for:

ad hoc analysis of performance problems
determining the status of several IDS sub components
monitoring replication metrics
sampling data for capacity planning purposes

Haste makes Waste - Stored Procedure Recompilation

eherber — Fri, 14 Mar 2008 10:37:35 +0100

Haste makes Waste - Stored Procedure Recompilation

During the study of the release notes of the new IDS 10.00.FC8 version I noticed a long anticipated feature that already made it into IDS 10.00.FC7:

Enhanced Concurrency after Recompilation of SPL Routines

The problem of locked rows in the dictionary table sysprocplan is something that comes up in many IDS installations that work intensively with stored procedures. The recommendation to reoptimize the stored procedures manually after DDL changes - update statistics for procedure - helps to avoid the problem but is more a kind of a workaround and is often forgotten by the administrator or application developer.

SMI Query Series - Shared Memory Segments

eherber — Tue, 04 Mar 2008 18:25:15 +0100

SMI Query Series - Shared Memory Segments

The sysmaster interface (SMI) presents a comfortable way to extract information about various parts of your running IDS instance. This information can be used for:

ad hoc analysis of performance problems
determining the status of several IDS sub components
monitoring replication metrics
sampling data for capacity planning purposes