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I want to do some logic based on what environment code is running in. I can't find a built-in function to retrieve this so I'd like to write a custom function. Does anyone know of a command that would get the current environment?

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Article
· Oct 27, 2016 2m read
New WRC Customer Interface

New WRC Customer Interface

Come check out the new WRC interface we have made available to supported customer.

Some of the new features available to you are:

Organization Dashboard – gives an overview of your organizations activity for this year

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Suppose you have developed your own app with InterSystems technologies stack and now want to perform multiple deployments on the customers' side. During the development process you've composed a detailed installation guide for your application, because you need to not only import classes, but also fine-tune the environment according to your needs.
To address this specific task, InterSystems has created a special tool called %Installer. Read on to find out how to use it.

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Date range queries going too slow for you? SQL Performance got you down? I have one weird trick that might just help you out! (SQL Developers hate this!)*

If you have a class that records timestamps when the data is added, then that data will be in sequence with your IDKEY values - that is, TimeStamp1 < TimeStamp2 if and only if ID1 < ID2 for all IDs and TimeStamp values in table - then you can use this knowledge to increase performance for queries against TimeStamp ranges. Consider the following table:

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Article
· Jun 20, 2016 4m read
NewBie's Corner Session 8 Not

NewBie's Corner Session 8 Not

Welcome to NewBie's Corner, a weekly or biweekly post covering basic Caché Material.

Click on the Caché Cube in your system tray and select Terminal to try out these commands.

NOT operator ('), single quote or apostrophe

The "NOT" operator reverses the truth-value and is intended for numeric operands, however it can be used on alphanumeric operands.

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Hi all,
Basically i have 2 queries..

  1. Is there any simple way to fetch the data directly from the database (using the URL and credentials) from the csp file without creating a link table for that particular Table...??
    If there is, could you please share the syntax of using them ..?

  2. Can we have an object return type from the below mentioned method to a javascript function.. ???

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** Revised Feb-12, 2018

While this article is about InterSystems IRIS, it also applies to Caché, Ensemble, and HealthShare distributions.

Introduction

Memory is managed in pages. The default page size is 4KB on Linux systems. Red Hat Enterprise Linux 6, SUSE Linux Enterprise Server 11, and Oracle Linux 6 introduced a method to provide an increased page size in 2MB or 1GB sizes depending on system configuration know as HugePages.

At first HugePages required to be assigned at boot time, and if not managed or calculated appropriately could result in wasted resources. As a result various Linux distributions introduced Transparent HugePages with the 2.6.38 kernel as enabled by default. This was meant as a means to automate creating, managing, and using HugePages. Prior kernel versions may have this feature as well however may not be marked as [always] and potentially set to [madvise].

Transparent Huge Pages (THP) is a Linux memory management system that reduces the overhead of Translation Lookaside Buffer (TLB) lookups on machines with large amounts of memory by using larger memory pages. However in current Linux releases THP can only map individual process heap and stack space.

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Hi,

I have a process that is importing lots of data from an external file, but every now and then I come across a STORE error.

I know that the STORE error is occurring in the %Save method of the class but I know very little else and I think its something to do with a lage amounts of Related Objects.

Is there a method of finding out more information regarding this error i.e. which actual object was being saved etc etc.

Thanks

Jim

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Article
· Dec 12, 2016 3m read
Generate and Validate Captcha Code

Suppose you have developed your own web app with InterSystems technologies stack and now want to perform a captcha validation on the client side in order to determine whether or not the user is human and make it safer. There are some modern frameworks to address the captcha issue, however most part of them needs internet access to generate codes and sometimes are complex to implement. Take this as basic example considering that image recognition has gotten too good. That's why you nowadays you tend to see more pattern recognition captchas than mere reading ones. (I.e.

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Article
· Jan 15, 2016 1m read
Activity Monitor in Ensemble 2016.1

Has anyone tried the new Activity Volume Statistics and Monitoring in Ensembel 2016.1? I would love to get some feedback.

If you haven't read about this, there is a dashboard that provides counts and response times for messages sent and received by each configuration item. Alternatively the underlying data is arranged in tables that should make it easy for you to use your favorite SQL reporting tools to generate reports for short term performance monitoring or longer term capacity planning.

Dave

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While testing Atelier 1.0.255 I noticed that the namespace subtree of my Atelier project used different icon shading for the top-level Classes folder compared with the top-level Routines one:

Drilling down into parts of the Wasabi package helped me work out the significance of white-filled icons versus brown-filled ones:

A package is white if there are no classes in it, but only subpackages.

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Does anyone know how to connect a Cache client to a GT.M database? I recently installed Osehra VistA on my PC and it uses GT.M, but we're supposed to use Cache Studio to develop. I tried adding a server to Cache (specifying 2222 as the port) and I get an "access denied" error. Port 2222 is the correct port which I use for for VirtuaBox and I have no problem connecting to VistA. I also tried going into the Management Portal to set up a local connection but this isn't working.

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Hello!

I'm trying to make a simple hello world program for iKnow but the documentation only shows examples using the scripting language or XML XData.

The domain is already created and configured, what I hope for is to be able to work with the data in some high-level language.

Is it possible to do something like this:


int domainId = 1;
IKnow iknow = new IKnow( domainId );
List concepts = iknow.getTopConcepts();

Any feedback will be greatly appreciated!

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How are we doing THIS year versus the same period LAST year?
This is a common need in Business Intelligence. In fact, many design specifications for reports make use of a comparison between a selected period (year, quarter, etc) up to a certain date (for example November 15th, 2016) and a summary of the same information for the previous year (i.e. up to November 15th, 2015).
This post shows how to implement this in DeepSee.

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Article
· Jun 13, 2016 1m read
Debug: using locks for breakpoints

Hi, Community!

Want to share with you one debugging approach from the Russian forum.

Suppose I want to debug the application and I want it to stop the execution on a particular line.

I add in code this line:

l +d,-d

When I want to start debugging in this line I block d in terminal

USER> l +d

And execute the app.

The app stops on this line and lets me connect to it with Studio debugger.

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Article
· Jun 24, 2016 2m read
Atelier, Git, and GitHub

One of the benefits of Atelier is easy integration with source code management tools. Some Eclipse installations include the EGit plugin, or you can install it from the Eclipse marketplace. EGIt makes integration with Git and GitHub easy. Here are the steps I used to connect Atelier to a GitHub repository:

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