Presenter: Paul Dayan
Task: Upgrade with minimal downtime
Approach: Provide examples of planning minimal-downtime upgrades from a variety of starting scenarios

When upgrading Caché, Ensemble or your application on your business-critical system, you want zero or minimum downtime. This session explores the problems and options when upgrading, and how mirroring can reduce or eliminate business disruption, with practical steps and a demonstration.

Content related to this session, including slides, video and additional learning content can be found here.

Faced with the enormous and evergrowing amounts of data being generated in the world today, software architects need to pay special attention to the scalability of their solutions. They must also design systems that can, when needed, handle many thousands of concurrent users. It’s not easy, but designing for massive scalability is an absolute necessity.

Software architects have several options for designing scalable systems. They can scale vertically by using bigger machines with dozens of cores. They can use data distribution (replication) techniques to scale horizontally for increasing numbers of users. And they can scale data volume horizontally through the use of a data partitioning strategy. In practice, software architects will employ several of these techniques, trading off hardware costs, code complexity, and ease of deployment to suit their particular needs.

This article will discuss how InterSystems IRIS Data Platform supports vertical scalability and horizontal scalability of both user and data volumes. It will outline several options for distributing and partitioning data and/or user volume, giving scenarios in which each option would be particularly useful. Finally, this paper will talk about how InterSystems IRIS helps simplify the configuration and provisioning of distributed systems.

Where is InterSystems IRIS Download for Windows (better free)?

hi everyone,

I'm trying to make some use of AI to help with coding. To achieve this I've moved to VS Code linking to a cache instance, and installed the "Cody" extension from Sourcegraph that talks to Claude Sonnet.

When using VS Code client-side editing in combination with a file-based revision control system such as git, I find activities such as branch switching and moving/renaming classes and packages a bit tedious, since you to maintain the connected namespace in sync manually.

I am able to capture two values in two separate contexts in the BPL. One through an API call and another by looking at the contents of PV1:7. These are context.Prov and context.ProvName. I am checking to see if the values contained in the contexts are the same and if yes process further and if not stop.

In the IF statement I tried the below but none worked. Can someone please tell me what I am doing wrong. The trace does show that they are the same value so that's not it.

1. context.Prov = context.ProvName

2. "context.Prov" = "context.ProvName" and

Hello,

I've the below datacombo definition and when selecting an item from it and make this call:

var component=zen("Component").getProperty("value");

I would get the ID (first column) which is what I'm looking for

Can someone help me on how the alter a table in Management table, I have tried the SQL and MYSQL way but it does not alter the table.

Thank you.

Hi,

How to view Messages centrally from Multiple Productions by using Enterprise Message Viewer?

Thanks

As of InterSystems IRIS® data platform version 2025.1, InterSystems is officially deprecating MultiValue and including it in the Deprecated and Discontinued Features list.

The question I have is if I run an External backup this library rotuine is called:
##Class(Backup.General).ExternalFreeze()

Is there a command I can run that shows me the Iris system is frozen due to the call to ##Class(Backup.General).ExternalFreeze()?

If the system is frozen I cannot sign into Iris terminal session.

I backup the IRIS server using Veeam. Veeam calls the "freeze" script, snapshots the server in VMWare, then calls the "thaw" script.
Veeam then backs up the VMWare snapshot.

Hi all,

I'm wondering if it is possible to call a Business Operation from other Business Operation.

I have a BO that writes logs into a database, using a personal message. I can create a set obj=##class(MyLogs).%New() but the BO has all parameters about connection.

Is it possible?

Best regards.

Hi Guys,

Migrated our system from Ensemble 2014 to 2018 and but for some reason my tasks keep getting the attached error not sure why?

Thanks