I have been trying to get to grips with the new dot Net Gateway used in IRIS as the import of the DLL to construct proxy classes is no longer supported in IRIS I have a third party DLL that when I try to instantiate throws an error complaining about the class not instantiated as it does not support parameterless constructor .I am using this new

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InterSystems Developer Community is a community of 25,832 amazing developers
We're a place where InterSystems IRIS programmers learn and share, stay up-to-date, grow together and have fun!

Hello,

When setting up a new web app in iris (iris is in a container) iris complains that a WSGI framework is not installed. I have installed python into the container as well as both flask and django via the python virtual environment (see second screenshot) and the python language server is running

Is this the wrong way to install flask? How do I get the container version to recoginize that flask is installed?

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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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Article
· Jul 22, 2025 5m read
Vector Search Performance

Test Objectives

InterSystems has been testing Vector Search since it was announced as an “experimental feature” in IRIS 2024.1. The first test cycle was aimed at identifying algorithmic inefficiencies and performance constraints during the Development/QD cycle. The next test cycle used simple vector searches for single threaded performance analysis to model reliable, scalable and performant behaviour at production database scale in IRIS, and performed a series of comparative tests of key IRIS vector search features against PostgreSQL/pgvector. The current test cycle models the expected behaviour of real-world customer deployments using complex queries that span multiple indices (vector and non-vector) and run in up to 1000 concurrent threads. These tests will be run against IRIS, PostgreSQL/pgvector, and ElasticSearch

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#InterSystems Demo Games entry


⏯️ FHIR-Powered AI Healthcare Assistant

Leverage InterSystems's FHIR SQL Builder to project FHIR data to a dataset for vector embedding, and feed the vector store to a RAG chain with LLM and Chatbot.

🗣 Presenter: @Simon Sha, Sales Architect, InterSystems

https://www.youtube.com/embed/P5JcdjLNvbc
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Hey Developers,

Watch this video to learn how Personal Community can be leveraged to enhance your digital front door strategy:

⏯ HealthShare Personal Community and Your Digital Front Door @ Global Summit 2024

https://www.youtube.com/embed/pbGVcxRcPVA
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Question
· May 18, 2025
REST API Issue

I have a rest API Class used for getting data from Cache 2018 version.
I have single route '/callfuntions'
I send the following parameters to the API :- className, methodName, params
I use $CLASSMETHOD to execute and send the result back to the client.

If I make more that 10 to 12 requests in quick succession, then it stops sending data.

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i have a line in my *.scr file like this:

send: s rlt=##class(%SYS.Namespace).ListAll(.rlt)<CR>
wait for:USER>
send: S A="" F S A=$O(rlt(A)) q:A="" I A["USER"!(A["CLIE") F I=1:1:$L(L,",") S G="^["""_A_"""]"_$P(L,",",I) S B="" F S B=$O(@G@(B)) Q:B="" F J=1:1:$L(B) S V=$A($E(B,J,J)) I (V<48!(V>57))&&(V<65!(V>90))&&(V<97!(V>122)) W A,?10,G,?30,B,!<CR>
wait for:USER>

it errors out with this <SYNTAX> error where the "<" or ">" are not accepted.

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Hi all,

I'm working on a requirement to loop through all encounter streamlets(SDA) to identify specific encounters based on an encounter extension property for a patient fetch request. However, this current process is time-consuming, and we need to create indexes for that property to quickly retrieve the expected results without going through all the encounter streamlets of a patient.

I would appreciate help on how to achieve this, as I couldn't find any documentation explaining how to create indexes on a SDA element.

Thanks in advance.

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Hi Community,

I have a problem I am hoping someone can help with - I have created a front-end with HTML/CSS/JS in a CSP page in Iris Studio. I am trying to use objectscript on the back end to connect to a SQL Server Database (with valid credentials), and execute a stored procedure.

I have a fileList variable that is a stored as a comma separated string through a user input textBoxContainer. This is to be used as a parameter in the stored procedure called @Docs

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You probably know this situation:
Some time ago, you found a very special $ZU function for a very specific type of problem. Some kind of mystical formula. It became popular and was used by many developers throughout your code and across all your installations.

Several versions and updates later, you are informed by ISC that your mystical $ZU is deprecated and no longer supported. You are advised to replace it with a new $something().

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The 2025.1.2 and 2024.1.5 maintenance releases of InterSystems IRIS® data platform, InterSystems IRIS® for HealthTM, and HealthShare® Health Connect are now Generally Available (GA). These releases include the fixes for a number of recently issued alerts and advisories, including the following:

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Question
· Jun 24, 2025
TCP connection problems

I'm trying to open a TCP connection to a remote system. The Caché command I'm using to open the connection is OPEN "|TCP|"_PORT:(IP::"PSE"):10 where PORT is a port number in the range 40000 to 40100 and IP is a standard IPv4 addess like 10.200.100.50
the connection appears to open because $TEST becomes 1.
I'm then writing to the open port with USE "|TCP|"_PORT:(::"S") WRITE "some text",*-3
It's a windows system

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I have created a New Database/Namespace within our TEST environment on both the Primary and Backup of the mirror. When I go to create the database/namespace on the DR node I am getting "Cannot open file '/ensemble/TEST/iris.cpf_...." while the cpf file that it references does not exist. Anyone have any clue to why this might be happening?

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Trying to start investigating an error we are seeing with multiple of the same messages getting sent to the same vendor. We receive an HL7 message with an RTF embedded from our EMR, send it through a DTL to just update the Patient Class, and then send it onto the Operation which is TCP.

We are starting to see this error message...

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Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

Customizing the InterSystems FHIR Transformation Service @ Global Summit 2024

https://www.youtube.com/embed/OULbRZfRPBY
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Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

It's CLEAR - Re-Imagining the Digital Front Door @ Global Summit 2024

https://www.youtube.com/embed/hfqELHz5FeI
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