Most transactional applications have a 70:30 RW profile. However, some special cases have extremely high write IO profiles.

I ran storage IO tests in the ap-southeast-2 (Sydney) AWS region to simulate IRIS database IO patterns and throughput similar to a very high write rate application.

The test aimed to determine whether the EC2 instance types and EBS volume types available in the AWS Australian regions will support the high IO rates and throughput required.

Minimal tuning was done in the operating system or IRIS (see Operating System and IRIS configuration below).

• The EC2 instance and EBS

InterSystems FAQ rubric

You can avoid the error by specifying a stream object as the argument of %ToJSON() used when generating a JSON string from a dynamic object.

A code example is below.

USER>set temp=##class(%Stream.TmpCharacter).%New()

USER>set jsonobj={}

USER>set jsonobj.pro1=["a","b","c","d"]

USER>set jsonobj.pro2=["あ","い","う","え"]

USER>do jsonobj.%ToJSON(temp)

USER>write temp.Size
51
USER>write temp.Read()
{"pro1":["a","b","c","d"],"pro2":["あ","い","う","え"]}

See also the documentation for details.

[IRIS] Serializing large dynamic entities to streams

Serializing l

on red hat, but I would also be interested in a wider answer.

after running a benchmark for 40 minutes, I have been asked if any rollbacks occurred in that time. Rollbacks from SQL or objects.

The application does not record this, so I am looking for a system level record.

The journal entries do the necessary reverse sets and commit just like any transaction. So i don't think i can detect them there.

The SQL documentation says "Messages indicating that a rollback occurred, and errors encountered during the rollback operation are logged in the cconsole.log", but when I deliberately write co

Hi Community
In this article, I will introduce my application IRIS-FlaskBlog.
IRIS-FlaskBlog Application is a real-world application that leverages the functionality of Flask web framework, SQLALchemy ORM, and InterSystems IRIS. The application contains user registration and authentication with the help of Flask-Login python library, a responsive user interface to create and edit posts.
 

Application Features

• User registration and authentication
• Creation of a data structure with SQLALcemy model classes
• Responsive user interface to create, edit, and delete posts
• Like and add comments

With the world (as well as our own technology) moving to the cloud at such a fast pace it is easy (at least for myself) to get caught up in the little details. One thing I, and some clients of ours, had run into a couple of times was the necessity to specify the version of the images one plans to use with the IKO.

For example, one issue that often gets overlooked is the compatibilityVersion field for the IKO. Depending on which IKO you are using there is a default value (for IKO 3.6 this happens to be 2023.2.0, and for IKO 3.5 this is 2022.3.0). If you intend to use a different version of an I

Hey Developers,

This August, you've posted 90 new questions on the Developer Community: 

In a previous question, I have illustrated a few problems using Embedded Python
interactively as you would do from Docker console or IRIS terminal.
Investigation of the causes brought a rather clear picture. It's a classic impedance mismatch

• While consoles act rather relaxed WebTerminal is very precise in output presentation line terminators from (Embedded) Python's print() function are typically <LF>  0x0A  $C(10) And WebTerminal does exactly this while eg. my console in Docker also does a <CR> und cover. So a sequence of print() looks like a scale
• Compared to ObjectScript where a WRTE !  s

This scenario showed up yesterday at a client site when I was delivering bespoke consultation on migration from Studio to VS Code.

The site's servers had been configured to use delegated authentication, but the "Delegated" checkbox hadn't been set against the /api/atelier web application, which is what the members of the InterSystems ObjectScript Extension Pack use to make their connections.

As soon as the we application got its checkbox set and the Server Manager refresh button was clicked, namespaces could be enumerated on the server.

I am trying to connect the external application. Authenticating via Two SSL,

I have the Client Cert, Private key and the Root Certificate

The connection is successful from local (both via terminal and as well via Postman)

But when trying from IRIS application by configuring the certificates in the SSL configuration, i am not able to successfully verify the SSl connections

When test from the ssl configuration with the endpoint and port its gives the error Error #988: SSL connection failed. SSL/TLS error in SSL_read(), SSL_ERROR_SYSCALL: I/O error (54)

I am also seeing the error when

Is it possible to configure mirror of the DB between two VMs using APIs like that one? I assume, based on the description, it can be done but on the same instance but I'm not sure how to do that for two separate VMs. I know how to use IRIS portal and set up Mirrored Members connections but now trying to automate that process.

Thanks!

For my Embedded Python ONLY demo package I need some user input.
Similar to ObjectScript

read "say somthing",reply

I use the Python equivalent

reply = input("say something")

And this works excellent without problems  from Terminal or Doker console

BAD SURPRISE: 
with WebTermnial ObjectSscript works fine, but embedded Python fails badly.

I do not care about line terminators without <CR>
but it is just impossible to receive any input.

This is no improvement. The content is missing !!!!

QUESTION to the experts.
What is the Python way around this issue ?

I have of course a temporary ha

I'm working with clients planning migrate from Caché to IRIS and I want to summary advantages to go to IRIS. I think is:

1. IntegratedML - AutoML - Agile machine learning
2. IAM - InterSystems API Manager
3. Interoperability
4. Advanced Reports (JReport)
5. Cloud Manager/Docker and DevOps support
6. ZPM - Package manager
7. Native API - Node.js, Python, Java and .NET interoperability
8. Core based license x user based license
9. InterSystems Support and new features
10. Improved management and monitoring features

Can you help me to think or detail these 10 topics?

I did not find any answer in the documentation and in the posts here to check if it also possible to migrate all databases from a native installed IRISHealth on Windows to my Community Edition in the container? Maybe anybody had tried this and can give me a hint.

If I try to import the backup file with all databases (that I created on Windows with the Management Portal, and copied into the container) and set /usr/irissys/mgr as top-level directory for import during "Do ^DBREST", I get the error
"The target database has a block size of which does not match the blocksize of the database in the b

The program below works perfectly when I call it directly from the Terminal, however when I call it from within a CSP it does not work (It does not do the SELECT).

In the USER namespace, the program works both in the Terminal and on the CSP , but in another namespace it only works when called directly in the Terminal.

PropList(class) ;
 k pl S c=0 s class="'"_class_"'"
 K ^PropList s ^PropList=class
 S lista=$SYSTEM.SQL.Execute("SELECT * FROM Projet.GerePageCSP")
 while lista.%Next() {
 S c=c+1,pl(c)=lista.%Get("NomdePage")
 S ^PropList(c)=pl(c)
 }
 Q

________________________ CSP __________________

Good morning,

Thank you for taking the time to read, understand, and answer this question.

If you needed to convert a message where questions are separated by "|", and the question text is the portion before the ":" and the response is the portion after the ":"; Which way would be the most readable and understandable for other developers?

Input example:

NAME OF SQUAD 1?:ALPHA|NAME OF SQUAD 2?:BRAVO|NAME OF SQUAD 2?:ANSWER THREE||NAME OF SQUAD 25?:YANKEE|NAME OF SQUAD 26?:ZULU

Output structure:

[
    {
        "definition": "question 1",
        "text": "NAME OF SQUAD 1?",
        "answer"

Is there a way problematically to see what Operations/Services are attached to a EnsLib.JavaGateway.Service and if there are issues with the EnsLib.JavaGateway.Service to stop/start those Services/Operations that might be attached to it?

Thanks

Hi Community,

In my previous article, we learned topics listed below:

1. What is Docker?
2. Some of the Docker benefits
3. How does Docker work?
4. Docker Image
5. Docker Container
6. Docker Image repository
7. InterSystems's Docker image repository
8. Docker Installation
9. Docker Basic Commands
10. Running IRIS community edition by using Docker
11. Docker Desktop GUI

In this article, we will cover the following topics:

1. Use of Docker Compose file (a YAML file)
2. Use of Docker file (employed to build a Docker image)
3. Use of Docker volume

So let's begin.

Hi All! Thought I would share our most recent podcast episode, which featured a conversation I had with Heather Capel and Chi Nguyen-Rettig of LEAD North. They talked about their journey from the beginning with InterSystems products, some of the challenges and opportunities building a team for healthcare integrations, and more. 

In my previous articles, I described my Command Line Extension to NativeAPI.
Of course, this is also available for any other NativeAPI package.
So I created this example in Python as a demo.

Context

I have created a Business Operation (BO) named "Sender" that sends HTTP messages to an endpoint (for testing, I'm using Postman's Mock Servers).

Goal: I want to set up an automatic timeout mechanism so that if I don't receive a response from the server within 18 seconds, an alert is generated and the message is resent. This process should be repeated every 18 seconds, for a maximum of 90 seconds. If no response is received within 90 seconds, I would like to generate an error message. On the other hand, if a response is received, I want to stop the resending process and complete the operation by indicating successful reception.

Hi developers, 

We need to query and retrieve an image DICOM from a PACS by Accession Number.

Has anyone maked an IRIS development by this porpose?

Best regards,
Xavier Gràcia

Overview

The online documentation contains a reference Defining and Using Class Queries -

Customizing Stored Procedures with ObjectScript directly has been useful to access NoSQL storage and external messaging via integration, to present output in tabular format.

For example: An application that already uses 90% SQL interaction from a front end, can then also extend this access to the other 10% of required platform functionality, via the same SQL access.

The purpose of this article is to explore how to achieve the same effect via Embedded Python methods.

Figure 1: Stored Procedure as a SQ

Hello everyone,

I'm trying to perform a full backup using DO ^BACKUP, but the database keeps skipping the restoration. Does anyone know what I could do to allow the restoration?

Device: /usr/OLD/BACKUP.cbk
This backup volume was created by:
   IRIS for UNIX (Red Hat Enterprise Linux for x86-64) 2021.1
The volume label contains:
   Volume number      1
   Volume backup      AUG 21 2023 06:45PM Full
   Previous backup
   Last FULL backup
   Description
   Buffer Count       0
Is this the backup you want to start restoring? Yes => Yes
The following directories will be restored:
/usr

Hi Community ,

I am using %Date Property for defining one csv source message class .Please refer below class

Class CSVtoHL7.Inputfile.Record Extends ,(%XML.Adaptor, Ens.Request, EnsLib.RecordMap.Base) [ Inheritance = right, ProcedureBlock ]

{

Property ID As %Integer;

Property LastName As %String;

Property FirstName As %String;

Property MiddleName As %String;

Property DOB As %Date;

Property Gender As %String;
}

Please refer to data transformation class

XData DTL [ XMLNamespace = "http://www.intersystems.com/dtl" ]
{
<transform sourceClass='CSVtoHL7.Inputfile.Record' targetClass='En

Hi,

Here are the requirements for implementing a new project using FHIR and JSON.

The FHIR JSON resource types - Patient, Encounter, etc. - need to be converted to HL7 messages using DTL.

Does %JSONImport() allow direct conversion of JSON into HS.SDA3.Patient objects?

Could anyone suggest an easy way to convert FHIR objects for DTL use?

Hi Everyone,

Join us at the online Developer Roundtable to discuss Generative AI Use Cases in Healthcare on August 31, 10 am ET. 
Learn Use Cases + Reference Architecture in Healthcare, and witness the demo of LLMs. We will have time for Q&A and open discussion as usual.

Speaker: @Nicholai Mitchko , Manager, Solution Partner Sales Engineer, InterSystems

Background: Nicholai runs a team of 10 solution engineers at InterSystems that help healthcare companies design, develop, and deliver solutions at enormous scale. In his free time, Nicholai works on large language models, including developing his own models which appear on the Huggingface OpenLLM leaderboard.

See the recording on our YouTube channel:

Hey Community,

Here is a digest of the Developer Community videos on InterSystems Developers YouTube Channel in August 2023:

Hi All,

Been trying to setup a iris 4 health community version along with a webgateway bothing utilizing docker. The documentation seems a little sparse when it comes to configuring each of these to work together, especially when it comes to utilizing the Webgateway to front end the MGMT pages for Irirs 4 Health.

I know there is a github repo that has a docker compose file, but that doesn't see to provide a light on what needs to be configured in order for it to work.

I know that the community version still includes a PWS but as a developer, I'd like to mock a production environment as clos

Hello,

I have set up a Docker image with IrisHealth Community Edition and created a backup of all databases with the Management Portal. Obviously, the restore requires a different way, i.e. a terminal or session needs to be started to use a "Do ^DBREST".

Due to the manual first a session (which is probably same as iristerm terminal) needs to be started:

docker exec -it iris iris session iris

If I enter "DO ^DBREST", I get the answer:

<NOROUTINE> *DBREST.

I assume that when I start the session that way I get logged in as "USER", at least the prompt "USER>" indicates this. All the examples