The most upvoted idea on the InterSystems Ideas Portal—garnering 74 votes—requests a lightweight version of IRIS. While the platform has grown into a powerful data engine, many projects require only its SQL database capabilities. This article demonstrates how to build an unofficial, compact IRIS Community Edition image focused solely on core database functionality, reducing the image size by over 80%.

⚠️ Disclaimer

This project produces an unofficial, experimental image of InterSystems IRIS Community Edition.

• Not supported or endorsed by InterSystems.
• Use at your own risk. The modifications remove core platform features and may break compatibility with tools, APIs, and expected behaviors.
• No warranties or guarantees apply, including fitness for production use.
• Intended only for educational and experimental purposes by advanced users.

Why a Lightweight IRIS?

While IRIS today includes rich functionality—interoperability, analytics, machine learning, system management, etc.—many projects only require its core SQL capabilities. The official Community Edition Docker image is approximately:

• Disk usage: 3.5–3.8 GB
• Compressed size: ~1.1 GB

IRIS Light reduces that to:

• Disk usage: ~575–583 MB
• Compressed size: ~144–148 MB

This makes it suitable for:

• Microservice or containerized SQL use
• CI pipelines with faster startup and pull
• Horizontal scaling where full features are unnecessary

The IRIS Installation Guide for Linux, Installation Directory section, says "Do not choose the /home directory, any of its subdirectories, or the /usr/local/etc/irissys directory." but there are no suggestions or any default.

What are your opinions on this? For example, I see that IRIS in a Docker container is installed in /usr/irissys. I'm wondering why that directory was chosen.

The official Linux filesystem docs say:

In our previous article, we explored how to send emails through Microsoft 365 using the Graph API. Since then, an anonymous client reached out to me about setting up some other methods of notifications through that API.

Last Friday November 17 suddenly ran into an error where ZPM would issue an error saying:

ERROR! Object open failed because 'Name' key value of 'xx' was not found

I googled but found no specific help. Step by step I was able to conclude that:

1. This is the error message for error 5770, also known as $$$KeyValueNotFoundOpen.

2. In objectscript, this error can be raised by calls to NameOpen, where 'Name' is the first quoted part in the error message.

I am trying to execute a program from within cache using a $zf call

S X=$ZF(-1,"C:\""Program Files (x86)""\Car-Part\Messaging\iCPM.exe")

For the sake of this post I changed it to open notepad

S X=$ZF(-1,"C:\Windows\notepad.exe")

If I call it directly from terminal notepad opens and all is happy.

If I add it to a program we use to run certain tasks once an hour or even every 10 minutes it will fire off notepad but it will be in the background.

Such most popular nowadays CI platforms as GitHub and Gitlab, offers the ability to run any docker image as a service, mostly useful for integration tests.

And I could define a GitHub workflow like this for instance, for some of my Python project which, requires the connection to IRIS

In trying to define a Class Parameter that I can use in SQLComputeCode I can't seem to get any of the syntaxes for the using of the parameter where the SQL compute code will actually evaluate the parameter values. There is nothing specific that I can find in the docs about SQLCompute Code and Parameter usage.

Is there some specific syntax for accessing a class defined parameter in the SQL Compute Code that works?

This is on: IRIS for Windows (x86-64) 2022.1.1 (Build 374U) Tue Oct 18 2022 17:37:34 EDT

Hi Team,

When I restored the database or import the data from source system to target system at that time how to Preserve source system identity value in target system.

Thanks,

Ankur Shah

I'm seeing trace messages being logged in a Router Business Process Routing Rule when the Business Process Log Trace Events setting is off.

In what circumstances is that setting ignored or not seen when logging trace messages?

Hello everyone,

InterSystems Certification has redesigned their IRIS System Administration certification exam, and we again need input from our community to help validate the topics. Here's your chance to have your say in what topics are covered on the InterSystems IRIS System Administration Specialist exam! And, yes, we'd like to hear from you Caché admins too!

Here's the exam title and the definition:

InterSystems IRIS System Administration Specialist

An IT Professional who:

hi,

I have redhat 8.3, after installation Cache and everything looks good , when i stop the DB by /usr/cachesys/cstop i get :

Hello to you all,

Strange titel, so I'll explain better:

I now have IIS-server with a CSPGateway installed. This works fine. But I want to use a rest-service (or another zen-page, whatever.) on another cache-server

So on IIS i have an application called CSP. (/csp) This contains the handler to map it to the CSPGateway.
It has been configured to acces a cache-server (X) which will handle the request. But now I want, in this case, the request to be executed on another cache-server(Y).

Good afternoon, I have a tabGroup where I populate tabs with images using the scr property. If a user scrolls to the bottom of the image on a tab, when they go to the next tab, they are also at the bottom. When moving between tabs, I would like the user to always be presented with the top of the tab content. I have not been unsuccessful in doing this. Would someone have input on how to make this happen? Thank you in advance for any and all feedback.

Hi, Community!

Please welcome a new session recording from Global Summit 2017:

Building Effective Analytic Data Models

https://www.youtube.com/embed/oBZLRVvuWjc
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