#InterSystems IRIS

Other Sync-Tools just work from Caché/IRIS to Caché/IRIS.
Synchronizing your data to some external DB requires some other solution.

The solution is available in Caché/IRIS since quite some time and works excellent.
^OBJ.DSTIME does the magic.
https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=D2IMP_ch_current#D2IMP_C23869

It was built to allow data synchronization with DeepSee.
It keeps a very simple journal on Object/Table changes by signaling Modified,New,Deleted
This could be useful not only for DeepSee but for any other type of Table Synchronization.

The Global ^OBJ.

The 2019.1 version of InterSystems IRIS Data Platform is now Generally Available!

Kits and container images are available via the WRC download site

The build number for these releases is 2019.1.0.510.0.

InterSystems IRIS Data Platform 2019.1 provides the following new capabilities:

• Performance and scalability. The release features new performance improvements for parallel queries and data ingestion resulting in more than 50 percent performance improvement, and expanded sharding support with simpler rebalancing across nodes.
• Expanded cloud support.

This is a continuation of my story about the development of my project isc-tar started in the first part.

Just having tests is not enough, it does not mean that you will run tests after all changes. Running tests should be automated, and when you cover all your functionality with tests, everything should work well after any change in any place.  And Continuous Integration (CI) helps to keep the code and deployment procedure with as fewer bugs as possible and automates the routine procedures, like publishing releases.

I use GitHub to store the source code. And some time ago GitHub started to work on its own CI/CD platform and named it GitHub Actions. It is not widely available, yet. You have to be signed as a beta tester for this feature, as I did. GitHub Actions uses quite a different way how to deal with a build workflow. What is important that Github Actions allows to use Docker, and it’s quite easy to customize available actions. And interesting that GitHub Actions is really much bigger than any classic CI like we have in Travis, Circle or Gitlab CI and so on. You can find more in the official documentation.

Hi Community!

We are pleased to invite you to the upcoming webinar "Machine Learning Toolkit (Python, ObjectScript, Interoperability, Analytics) for InterSystems IRIS" on 26th of March at 10:00 (Moscow time)!

I'm sure most of you have already familiar with the possibility of using GZIP in InterSystems products. But, the problem is that GZIP working only with one file or stream, and it does not support folders. When you work in Unix systems, there is a possibility how to solve it, using tar compress tool which goes with every Linux system from out of the box. But what to do if you have work on Windows as well, which does not have it. 

I am pleased to offer you my new project isc-tar, which will help you do not care about operating system, and deal with tar files anywhere.

I am just recently announced my project isc-tar. But sometimes it is not less interesting what’s behind the scene: how it was built, how it works and what happens around the project. Here is the story:

• How to develop this project
• How to test it
• How to release new versions for publishing
• And finally how to automate all above
• Continuous integration

So, I would like to tell all about it.

Hi -

I'm having odd behaviors on my EC2 hosted IRIS Community instance.

When I configure a "custom login page" in the System Management Portal for my web application I'm seeing a few different behaviors that are under documented (and also undesired)

The old Caché documentation indicates that the custom login page could be a ".csp" file, but this seems to nor be the case (i kept getting "not found" errors, even though I could bring up the page directly from the url FOR the login.csp file. To get around this, I created an HTML file and then, at least, the login page could be found to be rendered.

In recent discussion on CachéQuality I was (friendly) blamed for old syntax promotion and deliberate obfuscation of the code. Therefore I decided to clarify my point and shed some light on one of possible source of side effects that may unexpectedly occur with RETURN command with an argument.

March 14, 2019 – Alert: Data Integrity Issue with Mirror Database Catchup

InterSystems has corrected a defect in our mirroring technology that can result in inconsistency between mirrored databases. This defect exists for currently released Caché and Ensemble versions beginning with 2017.2 and for InterSystems IRIS Data Platform version 2018.1.

When the issue occurs, some journal updates are not applied to a mirrored database on the backup mirror member or an async member that is being caught up.

Sometimes global mapping of the same globals can be defined in different ways. E.g., I need to define it for 3 globals ^qAuditC, ^qAuditLog, ^qAuditLogC from the same database named APP-NOJOURN. Which approach should be better from the performance point of view?

1) qAudit* => APP-NOJOURN (one record in global mapping table)
or

2) qAuditC => APP-NOJOURN
qAuditLog => APP-NOJOURN
qAuditLogC => APP-NOJOURN (three records in global mapping table)

From one hand, the less records in global mapping table, the better. From other hand, * can cause additional processing at run time.

Is there a quick way to see if an SSL/TLS configuration name is valid, short of switching over to %SYS and checking Security.SSLConfigs:Exists?

Hi Community!

There are two general ways to execute arbitrary SQL  in serverside ObjectScript code: EmbeddedSQL and ObjectScript SQL a.k.a. Dynamic SQL.

E.g. if we want to get the value of the property of instance with a certain ID using SQL we can do:

&sql(SELECT Name INTO :name FROM Sample.Person WHERE ID=1)

write name

Same result with %SQL.Statement:

set rs=##class(%SQL.Statement).%ExecDirect(,"SELECT Name as name FROM Sample.Person where ID=1")
  do rs.%Next()
  write rs.name

Hello folks,

I have an JSON object that need to be updated before being parsed into a JSX component.

Hello,

I'm trying to set up an Apache server using CSP Gateway on Windows 10 (64-bit), but am getting the  error "Cannot load c:/InterSystems/IRIS_2019/CSP/bin/CSPa24.dll into server: %1 is not a valid Win32 application" when attempting to start up httpd.exe after adding the CSP-specific section to httpd.conf.

The CSP gateway is 64-bit (CSPGateway-2018.1.1.643.0-win_x64) and so is the Apache install (httpd-2.4.38-o102q-x64-vc14).

The CSPa24.dll file does exist in the specified location. 

Any suggestions appreciated.

Thank you,

Olga

Hi Community!

When you run  IRIS container out-of-the-box and connect to it via terminal e.g. with:

docker-compose exec iris bash

You see something like:

root@7b19f545187b:/opt/app# irissession IRIS

Node: 7b19f545187b, Instance: IRIS

Username: ***

Password: ***

USER>

And you enter login and password every time.

How to programmatically setup docker-compose file to have IRIS container with OS authentication enabled? And have the following while entering the terminal:

root@7b19f545187b:/opt/app# irissession IRIS

Node: 7b19f545187b, Instance: IRIS

USER>

ˮ This is one of my articles which was never published in English. Let's fix it!

Hello! This article is about quite a practical way of developing InterSystems solutions without using the integrated tools like Studio or Atelier. All the code of the project can be stored in the form of "traditional" source code files, edited in your favorite development environment (for example, Visual Studio Code), indexed by any version control system and arbitrarily combined with many external tools for code analysis, preprocessing, packaging and so on.

Hi,

I know of the existance of (ELEMENTS) to create an index from a list, but I actually would like to index the content of an element of a list. Is it possible?

My scenario:

Class:
Property Test As list of TestList;
 

Test.List:
Property Name As %String;
Property Surname As %String;

I would like to have an  index based on the TestList.Name. If I try using

Index NewIndex On Test(ELEMENTS)

it will create an index with Name and Surname in it, but I just want to have an index with the name. Is it possible? 

1. Blockchain

As I am writing this article, Bitcoin costs less than one-fifth of what it used to be at the pinnacle of its success. So when I start telling someone about my blockchain experience, the first thing I hear is undisguised skepticism: "who needs this blockchain stuff now anyway?"

That's right, the blockchain hype has waned. However, the technologies it is based on are here to stay and will continue being used in particular areas.The Internet in general offer tons of materials describing the general usage of these technologies 

Hi guys!

Suppose you developed a tool, framework, library on InterSystems ObjectScript for InterSystems Data Platform, share it via Open Exchange and want people to install it. 

What is the best strategy if it is a library and supposed to be called from different namespaces?

Here are the following thoughts:

1. Tool's developer should be able to use globals to read/store data the tool needs.

2. Tool's consumer should be confident, that the thing he/she installs will not harm the application's data.

3. A tool should be callable from any application's namespace.

4. Tool's installation(in general) should not request manual security changes (e.g. grant the write access to IRISLIB) and %YourClass is not an option.

5. It's easy to uninstall the tool - just delete the namespace/database (maybe delete some web-apps too).

Hi Community!

Suppose I have a property in a ObjectScript class:

Property values As list Of %String

What an SQL query can help to return the values of the property as JSON array via SQL access (JDBC)?

Suppose we need to store millions of values temporarily, that means, we don't care about them if we lose them but our application use them to get realtime information. Should I use Cachetemp or whatever other DB without journaling enabled? If answer is Cachetemp, shouldn't be a problem if we decide to scale using App Server + ECP? I'm not sure what would happen with the app logic in such architecture as I guess I couldn't map and share cachetemp...

Any idea/suggestion?

Hi Community!

What's the limit for Namespaces and Databases for one InterSystems IRIS installation?

Yes, I checked with documentation but cannot find it at once.

The Caché / Ensemble standard distribution contains in namespace SAMPLES
a nice example of a CSP page consuming WebService as a Client.
I have modified it not only to display the replies but to feed them back into a Global.
I used the classic Hyperevent to achieve this. The replies end up as a log in global^WSREPLY.
When there is no input anymore the page closes and goes away.

There are 2 versions with visible and hidden display during operation.
dc.WSCSP.reverseVerbose.cls and dc.WSCSP.reverseHidden.cls

The message to send is simply passed as a hash after the CSP_URL. (Mind URL encoding!

When I run the following cmd in Ubuntu 18.04

the container is created and stays running

But when I run this cmd, the container is created but exits immediately

Not sure why it is doing this.  if anyone can shed some light, it would be most appreciated.

Good News!! You can use now the Free InterSystems IRIS Community Edition in the AWS Cloud

Hello,

It's very common that people new in InterSystems IRIS want to start to work in a personal project in a full free environment. If you are one of this, Good News!! You can use now the Free InterSystems IRIS Community Edition in the AWS Cloud.

It is pretty easy to create a new EC2 instance from InterSystems IRIS Community Edition in AWS

Hi All,
I created a Business Operation to Integrate with Amazon S3.
I have used HTTP Outbound Adapter for the same. Used Get method of Adapter Class.
Basically in a request I want to send Unique File Name and File and in Response I want to get Version ID and if operation was successful, then set flag to true.
I have created a class for request in that I have two properties, as shown Below :
   

    Property fileName As %String;
    Property file As %GlobalBinaryStream;
This is in my Operation Class
 

            set pResponse = ##Class(SaveFileResponse).%New()
            set fileName = pRequest.

Hello Everybody and Happy 2019!

I hope this finds you well, relaxed and ready to tackle the challenges we'll face in 2019.

When a new period of our life begins it is nice and at times useful to consider what the previous period has been like and as the sage of old used to say "historia magistra vitae" or history is a teacher for our lives, maybe we can try to get some insights for the future. So, what did we see and experience in 2018?

1 - Information, knowledge & the machine!

Hi Community!

We're pleased to invite you to the InterSystems Benelux Symposium 2019!

Date: February 5 - 6, 2019

Place:Radisson Blu Astrid Hotel, Antwerp, Belgium 

Please find all the details here: https://bnl.intersystems.com/symposium-2019

Today in docs I found this example using NULL:

 WRITE $LISTVALID($LB(NULL)),!

simplified

zzdump $LB(NULL)

and NULL can be case-insensitive:

zzdump $LB(null)

seems the same as just:

zzdump $LB()

But if null variable is defined then list would contain value from variable. Case sensitive in that situation.

Does anyone have any Idea what is this? Is NULL used anywhere besides as a list element?

Recently I needed a classmethod that returns annotation value based on a name of a activity.

As doing it at runtime seemed inefficient, I wrote compile-time utility that iterates over all business process activities and generates relevant code.

This code could be used in a variety of situations when you need to iterate over business process activities, just add it as a secondary superclass to your BPL processes.