Article
· 1 hr ago 11m read
IKO Plus: HSSYS Mirroring with IKO

Enabling HSSYS Mirroring Out of the Gate with IKO

For those of us building InterSystems workloads on Kubernetes, we are definitely spoiled with the InterSystems Kubernetes Operator (IKO) doing the heavy lifting and mirroring on day one. Where us spoiled brats jump up and down is when we try to add additional databases/namespaces when we provision from HealthConnect containers on day two, while others get to utilize HealthShare Mirroring for this task, the prerequisite of mirroring HSSYS out of the gate has been somewhat elusive. Here is example on how you can this powerful feature up and running with the employment of IKO and IrisClusters.

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InterSystems Developer Community is a community of 25,896 amazing developers
We're a place where InterSystems IRIS programmers learn and share, stay up-to-date, grow together and have fun!
Learn more

Hi Community,

We’re excited to invite you to take part in shaping the next generation of ObjectScript development tools. We’re working on an AI-powered ObjectScript coding assistant designed specifically for IRIS developers. Not a generic AI adapted for ObjectScript, but a solution built from the ground up to understand ObjectScript idioms, IRIS APIs, interoperability productions, and real-world developer workflows.

To make sure we build something truly useful, we need your input.

👉 ObjectScript Coder Agent Developer Survey 👈

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As applications grow, every database eventually hits scaling limits. Whether it's storage capacity, concurrent users, query throughput, or I/O bandwidth, single-server architectures have inherent constraints. This guide explains fundamental approaches to database scalability and shows how InterSystems IRIS implements these patterns to support enterprise-scale workloads.

We'll explore two complementary scaling strategies: horizontal scaling for user volume (distributing computational load) and sharding for data volume (partitioning datasets). Understanding the general principles behind these approaches will help you make informed decisions about when and how to scale your IRIS applications.

The examples in this guide use InterSystems IRIS in Docker containers.

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The third developer previews of InterSystems IRIS® data platform, InterSystems IRIS® for Health, and HealthShare® Health Connect 2026.1 have been posted to the WRC developer preview site. Containers can be found on our

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Hello everyone,

My team lead mentioned that users can sometimes create globals directly without associating them with tables or classes. In this case, these globals would not be accessible via SQL.

Is this correct? Can a global exist independently in this way, and if so, is there a specific approach to access or manage them without SQL?

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Hi Community! 👋

As 2026 gets underway, we’d love to hear what you’re focusing on this year.

This discussion is a space to share your resolutions, goals, and focus areas for 2026 - technical, professional or community-related.

These don’t have to be traditional New Year’s resolutions. Think of them as intentions or priorities you’d like to work on this year.

💬 What you can share

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Here are the technology bonuses for the InterSystems Full Stack Contest 2026, which will give you extra points in the voting:

  • IRIS Vector Search usage -3
  • InterSystems Native SDK for Python or Embedded Python usage -3
  • Developer Community Idea implemented - 2
  • Docker container usage -2
  • IPM Package Deployment - 2
  • Online Demo -2
  • Find and report a bug - 2
  • Article on Developer Community - 2
  • The second article on Developer Community - 1
  • Video on YouTube - 3
  • YouTube Short - 1
  • First Time Contribution - 3

See the details below.<--break->

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I've modified the class file, but messages still arrive as a single line (e.g., "H|.../rQ|.../rL") instead of separate lines in the ASTM service. The <ENQ>..<EOT> header looks correct, logs show no errors, and the service receives messages fine. Is there an Ensemble 2018.1 engine setting (like line terminator handling or TCP framing) to fix the line splitting? ​

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Hey Community!

We're happy to share a new video from our InterSystems Developers YouTube:

⏯ Multi-threading an HL7 Interface and scaling beyond FIFO constraints @ Ready 2025

https://www.youtube.com/embed/8QpqZCZsiN4
[This is an embedded link, but you cannot view embedded content directly on the site because you have declined the cookies necessary to access it. To view embedded content, you would need to accept all cookies in your Cookies Settings]

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Hi Gang!

Did you know you can deploy InterSystems IRIS Community Edition on the cloud without paying for a license? You can try for free, and it could even come in handy if you want to show off that shiny new app you've created (maybe for the full stack competition..?)

In this article I will provide a complete walkthrough on how to deploy IRIS on Amazon Web Services (AWS), and will also add a follow up for deploying on Azure.

Now before I begin the walkthrough, I want to admit that I was terrified of using AWS the first time because I'd seen memes about how easy it is to rack up costs on AWS. So if you're thinking the same, I suggest you start by signing up to a Free Tier Account, which gives you $100 free credit to evaluate, and automatically shuts off to prevent charges. InterSystems IRIS Community Edition has a free license so if you pair the two, you can deploy without risk and completely for free. (Disclaimer: although I'm sure this is true, please do read the free account terms and make your own decisions 😅 )

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A .iostream file got stored in /intersystems/HCENG01B12/mgr/Temp for a BatchFileOperation class while HC was on the secondary node. HealthConnect is now on the primay node and cannot find that .iostream file path. The operation starts throwing errors when the RolloverSchedule is reached

OnKeepalive() returned ERROR #5012: File '/intersystems/HCENG01B12/mgr/Temp/QWhoZAwFF3f9jQ.iostream'
does not exist

How can I resolve this issue?

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Hello InterSystems EHR community,

InterSystems Certification is currently developing a certification exam for CCR Tier 2 users, and if you match the exam candidate description below, we would like you to beta test the exam! The exam will be available for beta testing starting January 27, 2026.

Beta testing will be completed March 28, 2026.

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Hello and welcome to the 2025 Developer Community YouTube Recap.
Top 10 videos from InterSystems Ready 2025
InterSystems Different by Design
By Scott Gnau, Peter Lesperance, Tom Woodfin, Gokhan Uluderya, Jeff Fried, Daniel Franco
Analytics and AI with InterSystems IRIS - From Zero to Hero
By Benjamin De Boe, Thomas Dyar, Carmen Logue
The Road to AI in Healthcare
By Don Woodlock, Sean Kennedy, Alex MacLeod, Erica Song, James Derrickson, Julie Smith, Kristen Nemes, Varun Saxena, Dimitri Fane, Jonathan Teich, Judy Charamand
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Announcement
· Jan 14
New AI CCR Assistant

CCR now includes an AI-powered 'CCR Assistant', available to beta testers. The CCR Assistant helps you quickly get answers about common CCR workflows, terminology, or best practices. Every response includes references to relevant ICC Training courses, making it easy to dive deeper into any topic. As a future improvement, the links will point directly to the specific page of the ICC Training PDF that was used to generate the response.

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Currently in the health connect code, we are using Epic FHIR API Patient.Create, code return 200 or 201 status values, we process the message based on this return values.

Now I need to use Epic FHIR Patient.$match API, need to check FHIR Error code 4101 for this API. I looked for FHIR statndard return code, but this this seems not standard code, please advice how can I check 4101 value?

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Hey Community,

We're pleased to invite everyone to the upcoming kick-off Webinar for the InterSystems Full Stack Contest!

During the webinar, you will discover the exciting challenges and opportunities that await developers in this contest. We will also discuss the topics we would like the participants to cover and show you how to develop, build, and deploy applications using the InterSystems IRIS data platform.

Date & Time: Monday, February 2 – 12:00 pm EST | 6:00 pm CET

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How many times have you had to receive or generate a JSON and wished you could work on it using DTLs without having to deal with DynamicObjects trying to remember the name of each field? Do you want to break down and make your giant JSON file more digestible?

In my case, never, but I thought that someone might find it useful to have a feature that captures your JSON and breaks it down into a series of ObjectScript classes that you can work with more easily and conveniently.

Well then...behold JSON2Class in all its glory!

Open Exchange app
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