Mirror Member

Hi ISC Experts,

I'm in the process of setting up InterSystems IRIS for HealthShare with database mirroring, and I’d appreciate some guidance around how to handle an existing ODBC connection in this new setup.

Scenario:

• We currently have a system running IRIS for HealthShare that external systems connect to via ODBC (using a standard connection string with hostname and port).
• We're now configuring mirroring on this system — it will become one of the mirror members (Primary/Backup).
• The external system using ODBC will not be part of the mirror, but it needs to continue accessing

How do you iterate over the array of namespaces returned in the result byref from the call below?

DO ##class(%SYS.Namespace).ListAll(.result)

Running "zw result" displays the namespaces (as individual subscripts in result) in the Terminal but I want to be able to programmatically iterate through each namespace name. 

The documentation for ListAll() mentions here that result will be a local array name passed by reference. Is there a way to turn it into a dynamic array?

Hi Guys,

below is a running a URL in a browser to connect and get live advertising packets data from Cassia AC server which keeps the connect live and keep going and population data. 

So now I'm doing the same in the below code but the issue I'm not getting anything and it gets stuck at Get(HttpURL) line because it hanging on that live connection I guess and not outputting, so how can I get the HTTP request to exit and get me only a snapshot of that data, maybe something like 20 sec worth of data?  

 S BleMac="DC:0D:30:9E:3A:EC",GatewayMac="CC:1B:E0:E2:56:18"
S Token=##class(SX3.Task.TemperatureC

Hey Community!

We're happy to share the next video in the "Code to Care" series on our InterSystems Developers YouTube:

⏯  Chaining LLMs for Better Results using Agentic AI

My intention is to show how simple it is to generate a lookup table taking into account the information received in our HL7 messaging. The HL7 message lookup table provided by IRIS is certainly sufficient for most of the searches we want to perform, but we always have that special field in our HIS, LIS, RIS, etc. that we'd like to search by. But that's in a segment outside of that lookup table. That field forces us to generate a specific search using the expanded search criteria. We'll likely have many messages, and we'll also have to filter by date and time so we don't timeout.
 

How do we

Do you have at least two years' experience developing with InterSystems IRIS® data platform and basic knowledge of InterSystems ObjectScript?

👨‍🎓Validate your expertise with the new InterSystems IRIS Development Professional certification exam, our first professional-level exam!

Hi Community,

Enjoy the new video in a series of videos created by our Project Managers to highlight some of the interesting features of the new 2025.1 release:

⏯ RAG with built-in Vector Search in InterSystems IRIS 2025.1

Description

This is a template for a Flask application that can be deployed in IRIS as an native Web Application.

Installation

1. Clone the repository
2. Create a virtual environment
3. Install the requirements
4. Run the docker-compose file

git clone
cd iris-flask-template
python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
docker-compose up

Usage

The base URL is http://localhost:53795/flask/.

Endpoints

• /iris - Returns a JSON object with the top 10 classes present in the IRISAPP namespace.
• /interop - A ping endpoint to test the interoperability framework of IRIS.
• /posts - A

Having been inspired with Shared code execution speed question/discussion, I dare to ask another one which is annoying me and my colleagues for several weeks.

We have a routine called Lib that comprises 200 $$-functions of 1500 code lines total. It was noticed that after calling _any_ function of another rather big routine (1900 functions, 32000 lines) the next call of $$someFunction^Lib(x) is getting 10-20% slower than previous call of the same function. This effect doesn't depend on: 

• which one specific function is being called between two calls of $$someFunction^Lib(x),
• which one specific

I am having issues trying to send SOAP requests to a Cloud Based AWS Application that lives outside of our network. 

It is using a Basic Authentication, Key, Certificate Authority and Whitelist for Security. 

If I attempt the connection using wget from the command line I am able to connect,

:>wget --bind-address=10.95.129.245 --server-response https://xxxxxxxxxx/xxxxxxx/services/Mirth
--2025-06-06 15:54:51--  https://xxxxxxx/xxxxxxxx/services/Mirth
wget: /ensemble/.netrc:16: unknown token xxxxxxx
wget: /ensemble/.netrc:16: unknown token xxxxxxxx
Resolving xxxxxxx.com (xxxxxxx)...

Hello, dear members of our developer community!

In today's article, we're going to take a look at one of the latest remote monitoring features that have been added to the product for our IRIS instances. I'm talking about OpenTelemetry support.

1. A Motivating Example

Embedded Python has been around for a while. You probably followed the tutorials and learned about it. However, if you've tried to combine Python and ObjectScript in real development work, you probably ran into situations where you get an error message like this:

USER>Do##class(MyClass).SomeMethod()

ERROR #5002: ObjectScript error: <PYTHON EXCEPTION> *<class 'ZeroDivisionError'>: division by zero

It's a long string for limited information. All we know from this message is that a Python error occurred where (a) the error type is ZeroDivisionError; and (b) the error

Hi.

I want to save and compile a class in VS Code, but I get the error:

Failed to save 'Utils.cls': Unable to write file 'isfs://mip:mz/API/Utils.cls?project=MZ' (Unknown (FileSystemError): Unknown Error).

Any ideas what is wrong?

Regards,
Matjaž

We are glad to announce that DBeaver has supported InterSystems IRIS out-of-the-box since version 7.2.4. You don't need to configure it manually anymore, just find the IRIS icon in the Connections list. 

Hey everyone,

I'm diving deeper into Caché ObjectScript and would love to open a discussion around the most useful tips, tricks, and best practices you’ve learned or discovered while working with it.

Whether you're an experienced developer or just getting started, ObjectScript has its own set of quirks and powerful features—some well-documented, others hidden gems. I’m looking to compile a helpful set of ideas from the community.

Some areas I’m especially interested in:

• 💡 Clever use of %INCLUDE, macros, and preprocessor directives
• ⚙️ Best practices in class-based development using %Persistent,

If you're migrating from Oracle to InterSystems IRIS—like many of my customers—you may run into Oracle-specific SQL patterns that need translation.

Take this example:

SELECT (TO_DATE('2023-05-12','YYYY-MM-DD') - LEVEL + 1) AS gap_date
FROM dual
CONNECT BY LEVEL <= (TO_DATE('2023-05-12','YYYY-MM-DD') - TO_DATE('2023-05-02','YYYY-MM-DD') + 1);

In Oracle:

• LEVEL is a pseudo-column used in hierarchical queries (CONNECT BY). It starts at 1 and increments by 1.
• CONNECT BY LEVEL <= (...) determines how many rows to generate.
• The difference between the two dates plus one gives 11, so the query

Hello Community

I have previously experimented with embedded Python in IRIS; however, I have not yet had the opportunity to implement IRIS using native Python. In this article, I aim to outline the steps I took to begin learning and implementing IRIS within the Python source. I would also like thank to @Guillaume Rongier and @Luis Angel Pérez Ramos for their help in resolving the issues I encountered during my recent PIP installation of IRIS in Python, which ultimately enabled it to function properly.

Let's begin to write IRIS in python.

First comes First, You have to install the intersystems_i

InterSystems has released new point updates to resolve a defect affecting the most recent prior versions of 2025.1.0, 2024.1.4, 2023.1.6, and 2022.1.7, for the following supported product lines:

• InterSystems IRIS
• InterSystems IRIS for Health
• HealthShare Health Connect

This issue could result in unexpected <PROTECT> errors or access anomalies when using features such as:

• Implied namespaces
• Mixed read-only/read-write access to databases
• Management Portal pages for listing routines and globals

Symptoms Included:

• Namespace creation failures
• Intermittent “access denied” errors when

Hello everyone, let me introduce, one of my latest projects. It is a DataSource plugin for Grafana, which can connect directly to InterSystems IRIS and gather any data (in the future). 

Hello,
I have created this script that does lot of writes to a single global. DB write performance is much slower than expected (compared to another similar systems).

set rec = "..."//fill it with somethingset time = $piece($horolog,",",2)
while(($piece($horolog,",",2)-time) < 30) //30 secondsset^A($System.Util.CreateGUID()) = rec
}

I have notified the following : 

• CPU usage does not reach 100% on a single core (eg: 25% of total CPU usage should be seen on a 4 cores system).

I am having a hard time trying to figure out the following...

Within a DTC, I was able to take the a EnsLib.HL7.Message source and using

set a= $System.Encryption.Base64Encode(source.RawContent)
set encodedMessage=$Get(a)

to take the HL7 message encode it and add it to the Data Class as a string to be sent to an Operation to be sent out as a SOAP Request. 

However to make it more universal I tried doing this within a copy of EnsLib.HL7.SOAPOperation

Method SendMessage(pMsgOut As EnsLib.HL7.Message, Output pMsgIn As EnsLib.HL7.Message, pExpectedSequenceNumber As%String) As%Status
{
 Set

Hi  Guys,

I'm looking for a Zen component that allow me to populate a list of items and the ability to multiselect, similar to checklist?

I've thought of using MultiSelectSet component but don't know how can I populate it like to a query or resultset?

a short sample code would be helpful.

Thanks

IRIS and Ensemble are designed to act as an ESB/EAI. This mean they are build to process lots of small messages.

But some times, in real life we have to use them as ETL. The down side is not that they can't do so, but it can take a long time to process millions of row at once.

To improve performance, I have created a new SQLOutboundAdaptor who only works with JDBC.

BatchSqlOutboundAdapter

Extend EnsLib.SQL.OutboundAdapter to add batch batch and fetch support on JDBC connection.

Benchmark

Benchmarks released on Postgres 11.2 with 1 000 000 rows fetched and 100 000 rows inserted on 2 columns.

Prerequis

Does anyone have a copy of the Class EnsLib.File.CSVService, which can import a CSV file in a Business Service?

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?

Why I've decided to write this

In my last article I've talked about returning values with Python. But returning them is simple, what can make it harder is what I'm going to talk about today: where the value is treated.
 

Python object in IRIS

Following the example of the last aricle, we have the method:

Class python.returnTest [ Abstract ]
{

ClassMethod returnSomething(pValue... As%String) As%Integer [ Language = python ]
{
	return pValue
}

}

Then, we'll have as a return a Python object, that IRIS interprets as  the class %SYS.Python. So if I call the method with two values, like this:

S

Hi,

     Can anyone please tell me how to append a string using a update query.

For eg :  "Hello" is the string . I need to append the string world and it needs to be "Hello world".

Thanks

Jude

During the realization of some required functionality, I discovered that I need to use Deflate compression, and found, that IRIS does not offer any options, $system.Util.Compress, works one way open (GZIP/COMPRESS) totally different, even for the same algorithms, I see that what I would expect as a result for Deflate somewhere there, but Compress returns something more. Is there any way to get a correct result using just ObjectScript without a need to use external tools? Was it really so difficult to have Deflate implemented in the first place?

set original = "my very long string which needs

Hi,

We're getting a string sent to us by a client that was compressed using a java deflater (the zlib algorithm) and when trying to use $System.Util.Decompress() I get an "illegal value" error. I gather from other community posts that this is because the raw compressed string is missing the customized wrapper Iris automatically adds. I know this has been a longstanding issue for a while...just wanted to check if there'd been any updates to this functionality, or successful workarounds for decompressing raw zlib compressed data. Thanks in advance!

Hi Community,

Our Project Managers created a series of videos to highlight some of the interesting features of the new 2025.1 release. Please welcome the first one of them:

⏯ Foreign Tables in InterSystems IRIS 2025.1