The technology of load balancing between several servers with relatively low capacity has been a standard feature of Caché for quite a while. It is based on the distributed cache technology called ECP (Enterprise Cache Protocol). ECP provides a host of possibilities for horizontal scaling of an application, and yet keeping the project budget fairly low. Another apparent advantage of ECP network is the possibility to conceal its architecture in the depths of Caché configuration so that applications developed for the traditional (vertical) architecture can be fairly easily migrated to a horizontal ECP environment. The ease of this process is so mesmerizing, that you start wishing it was always this way. For instance, everybody is used to having a possibility to control Caché processes: the $Job system variable and associated classes/functions work magic in skilful hands. Stop, but now processes can end up being on different Caché servers…

This article is about how to gain as much transparency in controlling processes in ECP environment as in traditional (non ECP) one.

Hello Community,

After the last heated programming contest, we're happy to announce the next InterSystems technical article writing competition!

✍️ Tech Article Contest: InterSystems IRIS Tutorials ✍️

Write an article that can be considered a tutorial for InterSystems IRIS programmers of any level: beginner / middle / senior from March 1st to March 31st.

🎁 Prizes for everyone: A special prize pack for each author who takes part in the competition!

🏆 Main Prizes: There are 6 prizes to choose from.

Hello,

I’m creating a REST API service but I need to convert my object in JSON.

The Class “A” is extended from another Class “B”:

Class message_B Extends Ens.Request
{

Property ClientId As %String(MAXLEN = "");

Property mesagge As %String(MAXLEN = "");

}

Class message_A Extends message_B
{
Property idDate As %String;

Property Datetime As %String;

Property time As %String;

​}

When I use:

Hey I would like to INSERT mulitple rows to 1 table. I need to intersystems cache equivelant for

INSERT INTO table_name (column_list)
VALUES
(value_list_1),
(value_list_2),
(value_list_3);

Have tried this post https://community.intersystems.com/post/how-execute-multiple-query-or-script-sql-management-studio
but still got an error

Hi all.

I'm currently looking at a use case where I need to take a Stream, and then encode the contents as a Base64 Stream. This is currently achieved with a snippet of code that has previously been placed in multiple classes within this particular environment, and relied on the dotnet gateway (which suffers with a bug in 2022.1, corrected 2022.1.1).

Introduction

This article aims to give an introduction to what gRPC is and an example of how to play with the official Hello World using IRIS Embedded Python.

You can find all the code exposed here, in this project repo.

Hello,

I am working on a Rest Service that should accept a particular content type. How and where can I set the value?

I have tried setting the value %response.ContentType by overriding Page method OnPreHttp() but from what I see this method never got executed.

Thanks

Raghu

Introduction

Hello Experts,

I am working on SOAP WSDL, where I am getting below error, I could not figure out where the error is hitting in code. Error says,

Hi all,

When is a Developer Community post not a Developer Community post? When it's just a few sentences wrapped around a link to InterSystems documentation! And what better way to finish up 2021 than by telling you about something cool that's been available since v2020.3? As the ball drops in Times Square, curl up with this:

Repeating Previous Commands

Hi.

As per the below document Intersystems licensing system works in the following way:

http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...

Embedded SQL is a tool that allows us to execute SQL statements in Caché Object Script. For example, to select the name of a person with a particular SSN from the Sample.Person class we can do the following:

As the title says, when I use the "Go To Definition (F12)" option, it opens the definition in read only mode. Is there some way to either directly make the go to option editable or can i turn the read only version into an editable version? I end up needing to open the file directly and then manually going to the method definition myself.