Hello Community,

The Certification Team of InterSystems Learning Services is excited to announce the release of our new InterSystems IRIS SQL Specialist exam. It is now available for purchase and scheduling in InterSystems exam catalog. Potential candidates can review the exam topics and the practice questions to help orient them to exam question approaches and content. Candidates who successfully pass the exam will receive a digital certification badge that can be shared on social media accounts like LinkedIn. <--break->

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Hi Community,

Play the new video on InterSystems Developers YouTube:

Using LLMs with InterSystems IRIS Interoperability Productions @ Global Summit 2024

https://www.youtube.com/embed/IQ9r0OWYSZ8
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InterSystems FAQ rubric

Mirroring only synchronizes database files.

To synchronize other files required for your application (CSP files, images, documents, etc.) between the two servers that make up the mirror set follow one of the approaches:

  1. Place those files on a shared disk by introducing a NAS or similar device
  2. Or use file sync software to synchronize files between two servers.
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If anyone has experience debugging Embedded Python or has insight into why an ObjectScript method when called from a Python method would not work but would work when called directly via ObjectScript or in a Python shell, your help would be appreciated!

We have an ObjectScript ClassMethod called GetTemplateString() which takes in a templateName of String type and uses the template name to get the template object, access the Code, and read the code into a templateString. The string version of the Code is returned.

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From the previous article, we identified some issues when working with JSON in SQL.

IRIS offers a dedicated feature for handling JSON documents, called DocDB.

InterSystems IRIS® data platform DocDB is a facility for storing and retrieving database data. It is compatible with, but separate from, traditional SQL table and field (class and property) data storage and retrieval. It is based on JSON (JavaScript Object Notation) which provides support for web-based data exchange. InterSystems IRIS provides support for developing DocDB databases and applications in REST and in ObjectScript, as well as providing SQL support for creating or querying DocDB data.

By its nature, InterSystems IRIS Document Database is a schema-less data structure. That means that each document has its own structure, which may differ from other documents in the same database. This has several benefits when compared with SQL, which requires a pre-defined data structure.

The word “document” is used here as a specific industry-wide technical term, as a dynamic data storage structure. “Document”, as used in DocDB, should not be confused with a text document, or with documentation.

Let's explore how DocDB can help store JSON in the database and integrate it into projects that rely solely on xDBC protocols.

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Hey Developers,

Watch this video to discover an analytical approach to InterSystems IRIS encryption and how it interacts with storage compression and deduplication compared with storage-level encryption:

Encryption Landscape for Data at Rest @ Global Summit 2023

https://www.youtube.com/embed/e5MdzyyAPlI
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All pods are assigned a Quality of Service (QoS). These are 3 levels of priority pods are assigned within a node.

The levels are as following:

1) Guaranteed: High Priority

2) Burstable: Medium Priority

3) BestEffort: Low Priority

It is a way of telling the kubelet what your priorities are on a certain node if resources need to be reclaimed. This great GIF below by Anvesh Muppeda explains it.

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Introduction

In today's rapidly evolving threat landscape, organizations deploying mission-critical applications must implement robust security architectures that protect sensitive data while maintaining high availability and performance. This is especially crucial for enterprises utilizing advanced database management systems like InterSystems IRIS, which often powers applications handling highly sensitive healthcare, financial, or personal data.

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Question
· Jul 29, 2024
Died workers of WorkMgr

Started some work using WorkMgr, but then I noticed, that it stuck and does not get any responses from workers anymore

And I found that messages log contains logs about dead processes, why WorkMgr daemon did not restart died processes?

How to restart them without restarting IRIS

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A benefit of using Doxygenerate is that Doxygen does more than just HTML output. Tweak the Doxyfile that tells Doxygen what to do and you can easily create a PDF. Our example MARINA application yielded a 524-page PDF. Here's what page 94 looks like:

You can browse the whole file here.

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Migrating from Oracle, MSSQL, or other purely relational database systems to a multimodel InterSystems IRIS is a strategic decision that requires careful planning and execution. While this transition offers significant benefits, including enhanced performance, scalability, and support for modern architectures, it also comes with challenges. In this article I will highlight some of the considerations connected to coding to ensure a successful migration. I will leave everything connected to an actual migration of structures and data outside the scope of this article.


First, when you're considering migrating to a different database system, you need to understand your business logic, whether it's on the side of the application (application server) or the database server. Basically, where do you have your SQL statements that you will need to potentially rewrite?

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Parallel query hinting boosts certain query performances on multi-processor systems via parallel processing. The SQL optimizer determines when this is beneficial. On single-processor systems, this hint has no effect.

Parallel processing can be managed by:

  1. Setting the auto parallel option system-wide.
  2. Using the %PARALLEL keyword in the FROM clause of specific queries.

%PARALLEL is ignored when it applied to:

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Article
· Feb 3 3m read
SQL Host Variables missing ?

Host Variables are a rather common programming feature in many implementations of SQL.
A recent question in DC made me aware that in IRIS, Caché, Ensemble, ...
host variables just exist within embedded SQL

> You can supply host variables for Embedded SQL queries only. <

Related examples are included in the available Documentation

This is a description for a workaround if you don't / can't use embedded SQL.

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The "Ask Developer Community AI" tool is an excellent resource for studying for the certification. I asked it about each topic that will be covered in the test and the results are below.
Note: I classified each answer by the assertiveness that I consider as good, average and bad.

Note 2: The article has 4 parts, each one for an exam area.

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I assume IPM manifest tag UnitTest is tightly coupled with the standard unit test framework, right? However we have our own one that predates the standard one and we are not going to switch.

I think I need to import the unit test cases and then be able to run a single class method for the test run. Any ideas how this would be possible?

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Is there a way in ObjectScript to return the OS user of the superserver? I know %SYS.ProcessQuery can find this for a given process but is there a clean way independent of a specific process ID I can find the OS user used for background jobs?

For IRIS this is usually irisusr and Caché this is usually cacheusr but may vary based on installation and upgrade history of an instance. I would find it very useful to determine programmatically if a process is running as this particular user when the username may vary.

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I'm having an issue with sending SMTP requests from a specific Microsoft 365 account to Gmail accounts. We can use other Microsoft 365 accounts, but something about this one specific account sending to Gmail fails. The error we get is just telling us that sending to the user xxxxx@gmail.com failed. In order to troubleshoot that, I'm looking for more detail than that.

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I'll preface this by saying I'm not sure if I found a bug or because I'm somehow misusing IrisVectorStore.

Basically I have code from the regular llama-index module working in my Python project which has SimpleDirectoryReader objects similar in nature to the demo I mentioned (https://github.com/intersystems-community/iris-vector-search/blob/main/d...). And I have other code working that can add new users to a SQL table in Iris.

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Hello everyone,

I'm currently working on getting familiar with OAuth2, following this article. Since Part 2 involves using PKI, I decided to implement it as outlined in the article. However, I've run into an issue that I can't seem to resolve, and my searches on Google haven't yielded any useful results.

Here's a brief overview of what I've done so far:

Configuring the PKI Server:

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Hi there, I'm wondering if anyone has run into an issue with <FILEFULL> when building an image from the ISC image? Specifically what's happening in our build is we are pre-loading our codebase into the image to make deployments faster and setting up source control, etc. When loading our libraries however we get hit with a <FILEFULL>. The resource limits on docker are pretty beefy and when observing resources on both the machine and container level we don't hit any issues. Oddly, this only happens when using the ARM64 version.

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I implemented a Python Flask application for the 2024 Python Contest with a page that provides common form fields for an outgoing email such as the To and CC fields. And it lets you input a message as well as uploading text based attachments.

Then using LlamaIndex in Python, the app analyzes the content you put in and returns to you in a result box if there is anything that should stop you from sending that email.

Take a look at the Github repo here.

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Question
· Dec 12, 2024
Mirror entered trouble state

Dear community, my company use intersystems iris, a old version of 2019 and centos 7.9

At the moment, we are faced with a rather strange luck of iris.

Every day during working hours, we receive a error that iris primary cannot transfer the journal to the backup node.

We have availability monitoring, these errors do not affect availability in any way, but I still wanted to analyze this error.

I understand that the severity of this error is only 1, but Can someone share a diagnostic method this error?

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