#InterSystems IRIS

In Cache for Windows (x86-64) 2018.1.3 (Build 414U) I found something very useful

No reason apparently,

to many times executed :

[Database.SparseDBExpansion] Expanding capacity of sparse database /usr/irissys/mgr/iristemp/ by 1000 MB.

no details on audits, no traffic for that, no process to justify this, some ideas ?

IRIS for UNIX (Red Hat Enterprise Linux for x86-64) 2020.1 (Build 215U) Mon Mar 30 2020 20:23:13 EDT

Hi everyone, 

I'm trying to build my project on a Linux machine using Docker.

In my development environment, I use Windows 10 Pro with Docker Desktop version 2.3.0.5. Everything works fine, and the docker-compose build runs flawlessly.

But, when I tried to run the same project in a Linux. 
Ubuntu 18.04.5 LTS (GNU/Linux 5.4.0-1025-azure x86_64), docker --version
Docker version 19.03.6, build 369ce74a3c

I'm getting the following error: 
ERROR: Service 'iris' failed to build: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"/irissession.

Hi Community!

We are pleased to invite all the developers to the upcoming InterSystems Full Stack Contest Kick-off Webinar! The topic of this webinar is dedicated to the Full Stack Contest.

On this webinar, we’ll demo the IRIS Full Stack template and answer the questions on how to develop, build and deploy full stack applications in InterSystems IRIS.

Date & Time: Monday, September 21 — 11:00 AM EDT

Speakers:  
🗣 @Evgeny Shvarov, InterSystems Developer Ecosystem Manager
🗣 @Raj Singh, InterSystems Product Manager - Developer Experience

In the WRC, we often see customers who have encountered a problem viewing their SOAP Catalog pages in a browser. This article will explain why the error is being encountered, as well as suggest a fix. This explanation is focused on the symptoms seen in InterSystems IRIS, but similar behavior can be seen in more recent versions of Caché.

The Problem:

You are trying to create new SOAP Web Services in InterSystems IRIS.

Dear Folks,

I am looking for a native approach to call a ClassMethod of an instance from another instance (Instances are running in different servers).  I can still do this via API over Http or any other communication method but I believe it would be better if I communicate via IRIS native methods(If exists).

Thanks

Hi Community!

We are pleased to invite you to the upcoming webinar in Spanish: "Integrating and improving your IoT platform", on September 28 at 4:00 PM (CET)!

Hi Community!

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ Management Portal Overview

Hi Developers!

Here're the technology bonuses for the Full Stack Contest that will give you extra points in the voting:

• InterSystems IRIS REST API Usage
• InterSystems Native API Usage
• InterSystems JDBC Usage
• Unit Testing
• ZPM Package deployment
• Docker container usage

See the details below.

Hi Community!

Please welcome the new video on InterSystems Developers YouTube:

⏯ Get InterSystems IRIS from the Docker Store

Hi Community!

Join us for another InterSystems Brazil virtual event, this time in partnership with Shift. The topic of discussion led by Marcelo Lorencin on September 16 will be: "InterSystems IRIS for notification of Covid-19's test results for the Ministry of Health". 

Please register now with the link below, vacancies are limited:

✅ InterSystems IRIS for notification of Covid-19's test results for the Ministry of Health

Date & Time: September 16 – 11:00 BRT

Note: The language of the webcast is Portuguese.

Join us!

Hello Developer Community!

I’m pleased to announce the 0.9 release of the ObjectScript extension for Visual Studio Code. Earlier this year I announced that InterSystems would be joining the community in evolving this already popular tool. Since then, we have been hard at work solidifying the code base and building a slew of new features.

Before I get into the details, I’d like to take a moment to thank @Dmitry Maslennikov, @John.

Hi Community,

Enjoy watching the new Global Summit 2019 video on InterSystems Developers YouTube Channel:

⏯ Building Data-Driven Web Apps

Hi,

Does anyone have a simple code snippet to encode and upload a raw text to Azure Blob?

InterSystems has corrected a defect that can cause a build-up of orphaned processes consuming system resources. In extreme cases, this can cause a system to become unresponsive.

This defect affects the following versions:

• Caché and Ensemble 2018.1.4
• InterSystems IRIS and InterSystems IRIS for Health 2019.4, 2020.1, and 2020.2
• HealthShare Health Connect (HSAP) 15.032 built on Ensemble 2018.1.4
• HealthShare Health Connect 2020.1

No other InterSystems product versions are affected by this issue.  Specifically, earlier versions of Caché and Ensemble, Health Connect 2019.1 and 2019.1.

I am currently working with docker for the first time the last month. I created a project with these 2 images:

• https://hub.docker.com/_/intersystems-iris-data-platform (for backend)
• https://hub.docker.com/_/nginx (for frontend)

My docker-compose.yml looks like this:

    version: '2'
    services:
        frontend:
            container_name: frontend
            build: 
                context: ./container/frontend
                dockerfile: Dockerfile.yaml
            ports:
                - "8080:80"
            
        backend:
            container_name: iris
            build: 
                context: ./container/IRISDataPlatform
                dockerfile: Dockerfile.yaml
            volumes:
                - ./container/IRISDataPlatform/ext:/external
            ports:
                - "9091:51773"
                - "9092:52773"
            environment:
                - ISC_DATA_DIRECTORY=/external/irissys
                - ICM_SENTINEL_DIR=/external
            command: --password-file /external/password.txt

You might have encountered this and not known how to prevent it, or perhaps not even noticed it...

Keywords:  IRIS, IntegratedML, Flask, FastAPI, Tensorflow Serving, HAProxy, Docker, Covid-19

Purpose:

We touched on some quick demos of  deep learning and machine learning over the past few months, including a simple Covid-19 X-Ray image classifier and a Covid-19  lab result classifier for possible ICU admissions.  We also touched on an IntegratedML demo implementation of the ICU classifier.

It's well-known among Studio users that besides few predefined code fragments (for ObjectScript, Basic, MV Basic) it's possible to add user-defined code fragments. I found it rather convenient to use them as patterns that help to follow some conventions (internal standards) of writing, say, methods descriptions.

But I didn't find a way how to share these patterns, except dumb copy-pasting. Did somebody succeed with this task? Any help would be appreciated.

The use of Source Code Control systems in development is important. And there are a few systems known in the world, like GIT, SVN (Subversion), Perforce, Mercurial. Where the most popular nowadays is the git. Using it is very useful in many cases, but mostly it depends on the code as text, which can be compared between commits, branches, or versions of releases and so on.

i want to restrict certain IPs (ip for now and looking for more such parameters) from running my URL for security purposes...

i wanted to know how to access their ips and compare them with the list of restricted IPs, also if not IPs are there any other unique browser parameters which can be used for access control? and enhance security

A Webinar was held today for our Czech and Slovak partners and end users. This webinar was an online version of what we originally planned to present earlier this year in Fabrika hotel, Humpolec as a workshop. Due to the current epidemiologic situation a decision was made to move the workshop into the virtual space.

Error management on InterSystems languages has been evolving along time. Next, we will show the different implementations and why you should use the TRY/THROW/CATCH mechanism.

You can read official error recommendations here.

InterSystems will not mark as obsoletes the non-recommended error management methods to allow giving support to legacy applications. We recommend using tools like objectscriptQuality to detect that legacy unrecommended usage along with many other possible issues and bugs.

I was able to define ECP connection in Installer class that I run when I build docker image for my Docker IRIS application. Now I start to use Amazon ECS and Autoscaling. When a new instance is created and it runs the IRIS container, I want it to "register" as an Application server on the remote database server. What code can I execute to add an ip address as an Application Server?

Just like the title, I want to do code version control. I don't want to change CLS at will, but I don't want to use MakeClassDeployed, I just want to set the cls or mac to read-only and uneditable state。Does CLASS have such property?

I need to consume the content of ^SPOOL output over SQL.
^%SPOOL utilities don't look so promising

I am trying to compare times on an IRIS instance. The times are in the W3C format (https://www.w3.org/TR/NOTE-datetime). Are there any in-built helper functions in IRIS to support time comparisons in this format or will I need to parse it using functions such as $zdateh and $ztimeh to do the comparisons?

Hello,

Recently I tried to connect to JDBC on IRIS 2020.3+ and I came across the following error:

 SQL Error [461] [08S01]: [InterSystems IRIS JDBC] Communication link failure: Communication error: Server closed communication device

This error implies that the port is not open.

Checking with the netstat command:

irisowner@78c3e30b7f41:/opt/irisapp$ netstat -a
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State     
tcp 0 0 0 0.0.0.0:1972 0.0.0.0:* LISTEN    
tcp 0 0 127.0.0.11:38005 0.0.0.0.0:* LISTEN    
tcp 0 0 0.0.0.0:52773 0.0.0:* LISTEN    
tcp 0 0 78c3e30b7f41:52773 192.168.96.1:37048 ESTABLISHED
tcp 0 0 localhost:47580 localhost:1972 ESTABLISHED
tcp 0 0 localhost:1972 localhost:47590 ESTABLISHED
tcp 0 0 localhost:1972 localhost:47580 ESTABLISHED
tcp 0 0 localhost:1972 localhost:47596 ESTABLISHED
tcp 0 0 localhost:47596 localhost:1972 ESTABLISHED
tcp 0 0 localhost:47590 localhost:1972 ESTABLISHED
udp 0 0 127.0.0.11:39733 0.0.0.0.0:*

Keywords:  IRIS, IntegratedML, Machine Learning, Covid-19, Kaggle 

Purpose

Recently I noticed a Kaggle dataset  for the prediction of whether a Covid-19 patient will be admitted to ICU.  It is a spreadsheet of 1925 encounter records of 231 columns of vital signs and observations, with the last column of "ICU" being 1 for Yes or 0 for No. The task is to predict whether a patient will be admitted to ICU based on known data.

This dataset seems to be a good example of what's called "traditional ML" task. The data seem to have the right quantity and relatively right quality.

I use these example classes:
Class Sample.Address Extends (%SerialObject, %Populate)
{Property Street As %String;
Property City As %String;
Property State As %String(POPSPEC = "USState()");
Property Zip As %String;}
Class Sample.Person1 Extends (%Persistent, %Populate)
{  Property Name As %String;
Property Home As Sample.Address;
Property AR As array Of Sample.Address; }

In SQL it is Table Sample.Person1

No problem to define INDEX on Home_State

But Table Sample.Person1_AR

HowTo define an INDEX on AR_State ?
Index st On AR.State;

Does not compile!