#InterSystems IRIS

In this article, I’d like to present details of which technologies we had been using to develop our application for the IRIS for Health Contest:

I did some experiments on my local machine and found out that IRIS seems to associate each request (eg: CSP request) to a dedicated process named IrisDB.exe

This process has 3 threads, and one of them seems to be the main working thread (that will the handle request).

If I spawn many concurrent requests, the number of IrisDB processes on my local machine will grow (to make sure each request can be handled in parallel).

It seems there is a limit : it will create no more than 64 processes to handle requests (eg: even if 100 concurrent requests are send to IRIS).

Hi everyone,

Lately, I've been spending a lot of time with Visual Studio Code (VSC), and I've been wondering if there's a terminal or a panel within VSC that acts like the Intersystems Studio Output panel, which serves both as an input and output window and allows the execution of ObjectScript commands.

Could anyone help? Thanks :)

With ECP we have the option to have a collection of Frontend instances
All Frontend servers typically have a common Master in the background
Concentrating data on the Master server is the primary goal.

As a side effect, this applies also to Classes, Routines, .. anything stored in Globals.
This is probably not the most efficient setup. But rather common anyhow.

Is embedded Python code also stored in Globals?

What is the recommended solution for a similar installation?

Hello,

I have a variables X="1,4,6,8,9,12" and I want to write a For loop with this variable in similar with the loop below:

For Y=1,4,6,8,9,12 {

Write Y,!

}

Can someone help? Thank you.

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.

Hi Developers!

Suppose I have a project where I want to build an IRIS container with two different dockerfiles depending on goals. How can I make it?

The issue is that docker-compose is looking for the file with name 'dockerfile'

Are there any #IF constrations in a dockerfile syntax?

Commenting works but sometimes it's more than one line.

Hi Community,

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Hi,

When batch inserting data into a table via SQL, I can use the %NOCHECK keyword to avoid checking foreign key integrity. This would be appropriate for cases when the inserted data has been verified by some external process.

However, when inserting via objects, I don't see a way to get the same behavior. Are there any workarounds that use objects for this?

Due to MySQL's interpretation of SCHEMA differing from the common SQL understanding (as seen in IRIS/SQL Server/Oracle), our automated Linked Table Wizard may encounter errors when attempting to retrieve metadata information to build the Linked Table.

(This also applies to Linked Procedures and Views)

I was wondering what best practice was for using macros in Embedded Python, i.e. iris.execute('$$$MACRO()') or something else. Does anyone have insight into this?

Hi community!

Is it possible generate HTML documentation to my project ObjectScript classes (.cls)?

In Java we use Javadoc to do it. Javadoc get class comments and java metadata information and when I execute javadoc -d doc src\*, I get whole html documentation to my classes. Has IRIS something like javadoc? Is it documatic? If yes, how can I use it?

So I've got the IRIS AMI spun up in AWS EC2; it seems to be running fine.

I've added an EBS volume to it for persistent storage, and now I'm pondering how to make it actually do something useful.

What's the best way to do deploy code to this instance? I can think of a few ways to do it, but what's the least painful way? Push my code to an S3 bucket and figure out how to load it at system start? Github project?