Kamino for IrisClusters

If you are in the business of building a robust High Availability, Disaster Recovery or Stamping multiple environments rapidly and in a consistent manner Karmada may just be the engine powering your Cloning Facility.

If one of your packages on OEX receives a review, you get notified by OEX only of YOUR own package.   
The rating reflects the experience of the reviewer with the status found at the time of review.   
It is kind of a snapshot and might have changed meanwhile.   
Reviews by other members of the community are marked by * in the last column.

I also placed a bunch of Pull Requests on GitHub when I found a problem I could fix.    
Some were accepted and merged, and some were just ignored.     
So if you made a major change and expect a changed review, just let me know.

Hi,

I'm trying to run some scripting in Windows. I'm using an instance of the IRISHealth community. 

I'm just trying to run a simple sequence of commands so I can run irissession in a non-interactive mode, like:

irissession.exe IRISHEALTH -U "%SYS" < "myprogram.iris"

set $namespace="%SYS"
set cbk = "C:\Test1.cbk"
set log = "C:\Test1.

Hello. I need to transform a message

FROM:

MSH|^~\&|
SCH||61490||
PID|1||
RGS|1||1
AIS|1||
AIS|2||
AIS|3||
AIL|1||
AIP|1||

TO:

MSH|^~\&|
SCH||61490||
PID|1||
RGS|1||1
AIS|1||
AIL|1||
AIP|1||
RGS|1||1
AIS|2||
AIL|1||
AIP|1||
RGS|1||1
AIS|3||
AIL|1||
AIP|1||

The RGS, AIS, AIL and AIP are all under the RGS group. The one RGS segment that comes in will be copied across the group. If 3 AIS segments come in then I need 3 RGS groups, if 2 I need 2 RGS groups etc.

In my DTL (screenshot below) I have currently hardcoded the RGS index (1,2,3) but this will not be sufficient incase 4 AIS segments are sent in.

The 2025.1.2 and 2024.1.5 maintenance releases of InterSystems IRIS^® data platform, InterSystems IRIS^® for Health^TM, and HealthShare^® Health Connect are now Generally Available (GA).

Hello community,

I wanted to share my experience about working on Large Data projects. Over the years, I have had the opportunity to handle massive patient data, payor data and transactional logs while working in an hospital industry. I have had the chance to build huge reports which had to be written using advanced logics fetching data across multiple tables whose indexing was not helping me write efficient code.

Here is what I have learned about managing large data efficiently.

Choosing the right data access method.

As we all here in the community are aware of, IRIS provides multiple ways to access data. Choosing the right method, depends on the requirement.

• Direct Global Access: Fastest for bulk read/write operations. For example, if i have to traverse through indexes and fetch patient data, I can loop through the globals to process millions of records. This will save a lot of time.

Set ToDate=+H
Set FromDate=+$H-1 For  Set FromDate=$O(^PatientD("Date",FromDate)) Quit:FromDate>ToDate  Do
. Set PatId="" For  Set PatId=$Order(^PatientD("Date",FromDate,PatID)) Quit:PatId=""  Do
. . Write $Get(^PatientD("Date",FromDate,PatID)),!

• Using SQL: Useful for reporting or analytical requirements, though slower for huge data sets.

Hi all,
Recently we were experimenting with having a variable target on a routing rule and noticed some interesting behaviour, code below.

<rule name="My Rule" disabled="false">
<constraint name="docCategory" value="Generic.2.3.1"></constraint>
<when condition="((Document.{MSH:MessageType.triggerevent}=&quot;A43&quot;))">
<send transform="" target="To&quot; _(pContext.Document.GetValueAt(&quot;MSH:SendingFacility&quot;))_&quot;FromServiceTCPOpr"></send>
</when>
</rule>

This code compiles and works.

"Haul" a Portable Registry for Airgapped IrisClusters

Rancher Government Hauler streamlines deploying and maintaining InterSystems container workloads in air-gapped environments by simplifying how you package and move required assets. It treats container images, Helm charts, and other files as content and collections, letting you fetch, store, and distribute them declaratively or via CLI — without changing your existing workflows.   Meaning your charts and what have yous, can have conditionals on your pull locations in Helm values, etc. 

If you have been tracking how HealthShare is being deployed via IPM Packages, you can certainly appreciate the adoption of OCI compliance storage for the packages themselves using ORAS... which is core to the Hauler solution.

Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ Customer Innovations @ Ready 2025

Starting out with ObjectScript, it is really exciting, but it can also feel a little unusual if you're used to other languages. Many beginners trip over the same hurdles, so here are a few "gotchas" you'll want to watch out for. (Also few friendly tips to avoid them)

NAMING THINGS RANDOMLY

We have all been guilty of naming something Test1 or MyClass just to move on quickly. But once your project grows, these names become a nightmare. 

➡ Pick clear, consistent names from the start. Think of it as leaving breadcrumbs for your future self and your teammates.

Introduction

Businesses often use in-memory databases or key-value stores (caching layers) when applications require extremely high performance. However, in-memory databases incur a high total cost of ownership and have hard scalability limits, incurring reliability problems and restart delays when memory limits are exceeded. In-memory key-value stores share these limitations and introduce architectural complexity and network latency as well.

This article explains why InterSystems IRIS™ data platform is a superior alternative to in-memory databases and key-value stores for highperformance SQL and NoSQL applications.

Taking Performance and Efficiency to the Next Level

InterSystems IRIS is the only persistent database that can match or beat the performance of in-memory databases and caching layers for concurrent data ingestion and analytics processing. It can process incoming transactions, persist the data to disk, and index it for analytics in under one microsecond on commercially available hardware without introducing network latency.

The superior ingest performance of InterSystems IRIS results in part from its multi-dimensional data engine, which allows efficient and compact storage in a rich data structure. Using an efficient, multi-dimensional data model with sparse storage techniques instead of two-dimensional tables, random data access and updates are accomplished with very high performance, fewer resources and less disk capacity. It also provides in-memory, in-process APIs in addition to traditional TCP/IP access APIs to optimize ingest performance.

Hi Community,

It's time to announce the winners of the InterSystems .Net, Java, Python, and JavaScript Contest! 

Thanks to all our amazing participants who submitted 11 applications 🔥

Now it's time to announce the winners!

Not sure where to ask for some helpful hints about IRIS 2019.1 in 2025, but here goes.

I'm trying to create a new Java gateway to run some Java code through ObjectScript, but I keep getting an error saying "Java executable not found in the given directory":

This is my Object Gateway Server definition:

 I am not sure what is wrong, whether I am defining this gateway wrong, because I can verify that the executable exists in the provided directory.

Any help or hint is greatly appreciated!

Hi community,

I have a service that uses EnsLib.RecordMap.Service.FTPService to capture files in an FTP directory.

Instead of uploading them all at once, I would need to do so one at a time.

I have a class that extends this class because it preprocesses, saves everything in the RecordMap class, and then processes all the records at once.

When I invoke the BP, it does so through the method set tStatus = ..SendRequest(message, 1).

I've set the SynchronousSend flag to 1, but it continues processing all the files at

Hi Team, 

Can I please check if anyone has built a simple web interface for maintaining custom SQL lookup class.  

We have a simple persistent class in HealthShare which is used for storing Pathology test codes. Test codes in this lookup class is used for message filtering and applying additional logic when processing pathology results/orders. 

We want to make this class available to external users from pathology (not the usual management portal users) to maintain so that they can add/edit/delete test codes as required.

As in the previous package, all is running from a CSP page.
And it is all classic CSP written with InterSystems ObjectScript, JavaScript, HTML
Besides the graphic, you also get concrete numbers freshly collected from your local
instance or from remote instances that also installed the package. 

The final result

The processing steps 

• A CSP page is called by its URL
• In method OnPreHTTP
  • The System Query fills the temp table from %SYS
  • If the correct URL parameter is provided 
  • ?

Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ How to Boost Data Quality with Interoperability @ Ready 2025

Hello and welcome to the Developer Ecosystem News!

The third quarter of the year was full of exciting activities in the InterSystems Developer Ecosystem. In case you missed something, we've prepared a selection of the hottest news and topics for you to catch up on!

Hey Community! 

We’re updating the Developer Community search engine till the end of the year to make it faster and more accurate (we hope 😉).

During this period, you may experience occasional slowness or brief interruptions in search performance. If you notice anything unusual or run into issues, please let us know in the comments below - your feedback helps us ensure everything runs smoothly.

Hey Community!

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

⏯  Advanced SQL join table cardinality estimates @ Ready 2025

Overview

This web interface is designed to facilitate the management of Data Lookup Tables via a user-friendly web page. It is particularly useful when your lookup table values are large, dynamic, and frequently changing. By granting end-users controlled access to this web interface (read, write, and delete permissions limited to this page), they can efficiently manage lookup table data according to their needs.

The data managed through this interface can be seamlessly utilized in HealthConnect rules or data transformations, eliminating the need for constant manual monitoring and management of the lookup tables and thereby saving significant time.

Note:
If the standard Data Lookup Table does not meet your mapping requirements, you can create a custom table and adapt this web interface along with its supporting class with minimal modifications. Sample class code is available upon request.

We're encountering occasional deadlocks in a mirrored IRIS deployment. How can we track down which global or object write caused the lock cycle, and how does IRIS mirror lock propagation internally?

We want to iterate over large global structures in real-time without blocking or locking readers. How can we safely use $Order() and implement a lock-free analytics approach?

Hi Community,

Are you a Python developer? If so, you can already start building apps with InterSystems IRIS without learning a new programming language!

👨‍💻Try this exercise to get started quickly with using Python's familiar DB-API interface to connect to an InterSystems IRIS database and run SQL queries.

💬What was your experience with the exercise? Let me know in the comments!

Hi, Community!

Are you curious about what it's like to be a subject matter expert for InterSystems Certification? Hear from members of our SME community, then join the discussion! 

What did you enjoy most about being a Subject Matter Expert?

Many thanks to our SMEs for sharing their experiences—including @Brendan Bannon, @Lori Fassman, @Attila Toth, and @Stephen.Canzano.

What about you?

• If you're already a SME, what did you gain from the experience?
• What questions do you have about the process?

As always, reach out to certification@intersystems.com if you'd like to learn more.

Target Practice for IrisClusters with KWOK

KWOK, Kubernetes WithOut Kubelet, is a lightweight tool that simulates nodes and pods—without running real workloads—so you can quickly test and scale IrisCluster behavior, scheduling, and zone assignment.  For those of you wondering what value is in this without the IRIS workload, you will quickly realize it when you play with your Desk Toys awaiting nodes and pods to come up or get the bill for provisioning expensive disk behind the pvc's for no other reason than just to validate your topology.

Here we will use it to simulate an IrisCluster and target a topology across 4 zones, implementing high availability mirroring across zones, disaster recovery to an alternate zone, and horizontal ephemeral compute (ecp) to a zone of its own.  All of this done locally, suitable for repeatable testing, and a valuable validation check mark on the road to production.

Hi:

I see a lot of cool REST apps and i'm trying to host something in the TIE using REST/Axios with VITE. 

At the moment i will probably host the application in web applications in Intersytems. 

For authorisation and getting the logged in user and password to any app, is there a standard people are doing? 

I.e. for axios you might have this from the app

auth: {
        username: apiUser,
        password: apiPass
      }

But surely you want to pass through credentials from the IRIS logged in user, or alternatively pass the credential request to IRIS API to first receive the data.

I have a class that extends %CSP.REST which made I deployed using $system.OBJ.MakeClassDeployed. After upgrading IRIS, the web app which uses that class no longer works with an ObjectScript error.

In the past, I fixed that problem by adding a dummy new line or a comment then recompiled that class. For this deployed class, I can't add a new line and recompile the class (the code shows up as locked in Studio). Simply running $system.OBJ.compile() is not fixing the web app issue.

Is there a way to edit a deployed class then recompile it?

Hey Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ The Road to AI in Healthcare @ Ready 2025

Hello Community,

When I compile the Sample.User class for the first time, and include an ObjectGenerator method intended to run certain logic during each compilation, it throws a <CLASS DOES NOT EXIST> error. However, recompiling the same class works as expected.

I understand this happens because the class hasn’t been fully compiled yet during the first pass. To overcome this issue, are there any specific callback methods available that can safely be used after the class is fully compiled?