InterSystems FAQ rubric

To resolve the error <PROTECT>, remove the read-only attribute of the system-wide library database (IRISLIB for InterSystems IRIS, CACHELIB for Caché/Ensemble/HealthShare (Caché-based))

Once you have finished importing the routine, remember to change it back to read-only.
 

[Version 2013.1 and above]
[Management Portal] > [System Administration] > [Configuration] > [System Configuration] > [Local Database] Uncheck "Mount read-only" from the database name link.

[Version 2011.1 - Version 2012.2]
[Management Portal] > [System Administration] > [Configuration] > [System

Hi developers!

Today I would like to address a subject that has given me a hard time. I am sure this must have been the case for quite a number of you already (so-called “the bottleneck”). Since this is a broad topic, this article will only focus on identifying incoming HTTP requests that could be causing slowness issues. I will also provide you with a small tool I have developed to help identify them.

Our software is becoming more and more complex, processing a large number of requests from different sources, be it front-end or third-party back-end applications. To ensure optimal performance, it is essential to have a logging system capable of taking a few key measurements, such as the response time, the number of global references and the number of lines of code executed for each HTTP response. As part of my work, I get involved in the development of EMR software as well as incident analysis.  Since user load comes mostly from HTTP requests (REST API or CSP application), the need to have this type of measurement when generalized slowness issues occur has become obvious.

I have a message class define. But sometimes the RelatedItems fields is not returned. 

Parameter %JSONIGNOREINVALIDFIELD As BOOLEAN = 1;

Property RequestedTerm As AH.AHLIB.Custom.Symedical.Message.PostRelationResponse.termsRequested;

Property RelatedItems As list Of AH.AHLIB.Custom.Symedical.Message.PostRelationResponse.RelatedItems;
 

Respnse normally will return someting like this,

on ocassion the RelatedItems are not returned

have response context variable defined as the custom message type

How do I check in a BPL if there is no RelatedItems  in the response?
 

IRIS has the likes of SQL inbound adapters for use with SQL gateways such as EnsLib.SQL.InboundAdapter to repeatedly query SQL Gateway connections. A scenario appeared as that we wanted to query an Internal database for some data but did not see an out of the box service for this. 

Have a Generic service that can poll internal SQL to work with downstream components.

What was not clear was "How do I send a result set downstream". It was not very clear as a resultset itself is not a peristent class and the object cannot be "Swizzled" an error like so 

 <METHOD

I have an interface with repeating DRG segments with messages coming in as DRGgrp().DRG(1). I know how to find the count of DRG groups:

 (source.{DRGgrp("*")}) BUT I am stuck at how to find the index of the segment that has DRG.1.3 having a specific value = "PMP". Any ideas please?

Thank you

Artificial intelligence is not limited only to generating images through text with instructions or creating narratives with simple directions.

You can also make variations of a picture or include a special background to an already existing one.

Additionally, you can obtain the transcription of audio regardless of its language and the speed of the speaker.

So, let's analyze how the file management works.

Windows Subsystem for Linux (WSL) is a feature of Windows that allows you to run a Linux environment on your Windows machine, without the need for a separate virtual machine or dual booting. 

WSL is designed to provide a seamless and productive experience for developers who want to use both Windows and Linux at the same time**.

WSL 2 is the default distro type when installing a Linux distribution. WSL 2 uses virtualization technology to run a Linux kernel inside of a lightweight utility virtual machine (VM). Linux distributions run as isolated containers inside of the WSL 2 managed VM. Linux

When trying to create a ML Model I ran into the problem, that AutoML apparantly isn't available on my IRIS instance.

I was able to use the following command successfully: CREATE MODEL ECLASSPREDICT PREDICTING (eClass) FROM SQLUSER.CRMSHOPARTIKEL

Then when trying to use TRAIN MODEL ECLASSPREDICT, I get the error from the image:

Roughly translates to : "-186: Modelprovider not available on this instance. #2822 %ML provider 'AutoML' is not available on this instance"

In my ML Configurations there are 3 standard configurations called %AutoML, %H20 and %PMML which I haven't changed.

I have

I want to call the REST endpoint and return the list of objects. I`ve created the method but it displays an error: 
<METHOD DOES NOT EXIST>GetAllPersons+10^Lab3.RestClient.1 *Count,%ZEN.proxyObject

ClassMethod GetAllPersons() As%Status
{
    Set request = ##class(%Net.HttpRequest).%New()
    Set sc = request.Get("http://localhost:52773/csp/crud/persons") 
    Quit:$System.Status.IsError(sc) sc

    Set responseStream = ##class(%Stream.GlobalBinary).%New()
    Set response = request.HttpResponse.Data.Read()
    
    Write"Response from Server:", !, response, !

    Set pl = ##class

IRIS External Table is an InterSystems Community Open Source Project, that allows you to use files, stored in the local file system and cloud object storage such as AWS S3 as SQL Tables.

It can be found on Github https://github.com/intersystems-community/IRIS-ExternalTable Open Exchange https://openexchange.intersystems.com/package/IRIS-External-Table and is included in InterSystems Package Manager ZPM.

To instal External Table from GitHub use:

git clone https://github.com/antonum/IRIS-ExternalTable.git
iris session iris
USER>set sc = ##class(%SYSTEM.OBJ).LoadDir("<path-to>/IRIS-ExternalTabl

Hi Community,

Let's meet together at the online meetup with the winners of the InterSystems Java Programming Contest 2023 – a great opportunity to have a chat with the InterSystems Experts team as well as our contestants.

Winners' demo included!

Date & Time: Thursday, December 7, 12 pm EST | 6 pm CET

Hello,

I have created a service in Node.js which interacts with IRIS using APIs. The current implementation uses basic auth. I want to implement OAuth 2, to make the communication between the node.js service and IRIS secure. I want my service to act as client and IRIS as Authorization and Resource server. I don't know how to do that. Anyone who has implemented OAuth using IRIS can you help me out or point me in the right direction on about how to implement it? 

Thank you for your help :)

Hello and welcome to the Developer Ecosystem Fall News!

This autumn we've had a lot of online and offline activities in the InterSystems Developer Ecosystem. In case you missed something, we've prepared for you a selection of the hottest news and topics to catch up on!

Hi Community, 

We are trying to filter message created using custom xml class in a business rule.  

HL7 ORU Result messages are converted to custom xml messages with a list properties .Result ORU converted to OrderResultMsg , which contains property Orders as list of Order which contains ResultStatus .  Please see below the class extract.  We are trying to access the ResultStatus property to filter non-final results via business rule. 

Class CDM.OrderResultMsg Extends Ens.Request
{

Property MSHSendApplication As %String;

Property MSHSendFacility As %String; 
<<Code truncated>>

Property O

I am often asked by customers, vendors or internal teams to explain CPU capacity planning for large production databases running on VMware vSphere.

This post was originally written in 2017, I am updating the post in February 2026. For context I have kept the original post, but highlighted changes. This post was originally written for ESXi 6.0. The core principles remain valid for vSphere 7.x and 8.x, though there have been improvements to vNUMA handling, CPU scheduling (particularly for AMD EPYC), and CPU Hot Add compatibility with vNUMA in vSphere 8. Always consult the Performance Best Pra

I am trying to run the CSP server. But I get the error:

It worked once, but when I made some changes is displayed an error.
Also, a WEB page looks like this:

Did you face this issue? What is the reason for it?

hi there,when object export to xml,i know that,it will call propertynameLogicalToXSD method,but i can`t find out that use %XML.Reader to parse XML to object  witch method will be called before ,

simple code like this:

Class Samples.NewClass2 Extends (%Persistent,, %XML.Adaptor)
{
Property OPDT As %Library.DateTime;
}

my xml is 

<NewClass2><OPDT>2023-11-30 11:07:02</OPDT></NewClass2>

and how parse it to object ,and not modify the xml?

Hello, our dear Members of the Community!

We're so happy to share with you that our InterSystems Developer Community has reached yet other AWESOME milestones 🎉:

📝 18,000 published posts

👥 16,000 registered members

👁 8,000,000 views

I am looking for any examples on hoe to use http request to connect to S3, list buckets and loop thru them to download files recursively.

Hi,

We recently updated Ensemble, on our Unix DEV server , from version 2013.x to 2015.2.3 (Build 855U) and when we test our SSL/TLS configuration we get the following error:

ERROR #729: Certificate /qmd/ens_chldev_1/mgr/SILCert/SILCSSSJR-CER.cer is not valid for TLS Web client authentication .

The certificate was working fine before the update in DEV and it is working fine in our PROD Unix server with Ensemble 2012.x.  Any ideas why we are getting this error?

Regards

Hi folks, 

I made a solution (https://openexchange.intersystems.com/package/iris-pretty-gpt-1) and want to use it like 

CREATEFUNCTION ChatGpt(INpromptVARCHAR)
RETURNSVARCHARPROCEDURELANGUAGE OBJECTSCRIPT
{
    return ##class(dc.irisprettygpt.main).prompt(prompt)
}


CREATETABLE people (
nameVARCHAR(255),
city VARCHAR(255),
age INT(11)
)


INSERTINTO people ChatGpt("Make a json file with 100 lines of structure [{'name':'%name%', 'age':'%age%', 'city':'%city%'}]")

I know that a FUNCTION can only return one result. But it seems that the PROCEDURE can return several va

Hi,

        What is the alternative for INTERSECT in cache. I tried Intersect but not working.

Thanks for suggestions.

thanks

Jude

What changes are to be made while customizing a FHIR server package when adding a new field. As provided in the documentation, we have a sample JSON package of favorite color and it is added in the table, but when we are adding a new field 'Insurance', it does not imports the package and says package already exists. We have three files of JSON 

1) Package.JSON

2) SearchParameter.JSON

3) StructureDefination.JSON 

What should we have to change for adding new field.

I create a class, property OPDT as %Library.DateTime,the class extends %XML.Adaptor，after run " d obj.XMLExportToString(.xml)" OPDT`s value is 2023-11-28T13:57:26,but what i need is 2023-11-28 13:57:26,so is there any solution?

I restore the “dirty” copy of the IRIS.DAT files, then apply the incremental backup as documented for Online Backup. As shown in the picture, restarting the service before mounting and rejoining the database to the mirror can restore the mirror database to the point in time of dirty data. I think the mount method used here is the default value, and I don't want it to perform mirrorcatchup. Is there any other way to recover the mirrored database to the point in time of dirty data？

I need to create a simple REST application.
I`ve created an app:

Also here is a dispatcher class:
 

Class Lab3.helloWorld Extends%CSP.REST
{

Parameter Authentication = 0;Parameter HandleCorsRequest = 0;
XData UrlMap [ XMLNamespace = "https://www.intersystems.com/urlmap" ]
{
<Routes>
    <Route Url="/hello" Method="GET" Call="Hello" />
</Routes>
}

ClassMethod Hello() As%Status
{
	Do##class(%REST.Impl).%SetContentType("application/json")
    If '##class(%REST.Impl).%CheckAccepts("application/json") Do##class(%REST.Impl).%ReportRESTError(..#HTTP406NOTACCEPTABLE,$$$ERROR($$$RES

Hey Developers,

Start watching the new video on InterSystems Developers YouTube:

⏯ Using Embedded Python as a Jupyter Notebook Server @ Global Summit 2023

Here we are again with an article related to the Mirror!

In the previous article we saw how we could configure a Mirror between two IRIS instances, one acting as an active node and the other as a passive one. This mirroring system works on the transfer of a journal file that keeps the instance that works as a passive node continuously updated, but what happens if due to some communication failure or permissions of the journal file it is not transferred correctly?

The most common is that in this situation our Mirror remains unconfigured, in such a way that the passive node does not receive th

Hey Community,

It's time to announce the winners of the InterSystems Java Contest 2023! 

Thank you to all our amazing participants who submitted 13 applications 🔥 

Welcome everybody!

In this short article I would like to present an example of use that surely many of you who work with IRIS as the backend for your web applications have faced on more than one occasion and it is how to send a file to your server from the frontend.

Generally the simplest way I have found to perform this task is to transform the file from the frontend to the Base64 format and make a POST call to our server attaching the Base64 obtained to a JSON message in which I indicate in a parameter the name of the file and in another the encoded data. Something similar to this:

{