#InterSystems IRIS

I am aware that we have 5 License Units on Community Edition. But I have issues figuring out how it's working.

I have Community Edition

USER>write $system.License.KeyCustomerName()
InterSystems IRIS Community

Freshly started system, only terminal session open, so, only one license units used, and 4 left. As expected

USER>write $system.License.LUConsumed()
1
USER>write $system.License.LUAvailable()
4

Quote from documentation - $SYSTEM.License.MaxConnections() returns the maximum number of connections a user can make while consuming one license unit. 

USER>write $system.License.MaxConnections()
25

We're back with a code golf!

You will receive a string. Each word in the string will contain a number. This number is the position that word should have in the sentence. If the input string is empty, return an empty string. The output can only be in words, without the given numbers.

##Input "i2s T1his Te4st a3"

##Output This is a Test

Work Queue Manager (WQM) is a feature of InterSystems IRIS that enables you to improve performance by distributing work to multiple concurrent processes programmatically. The idea is that you split the work into chunks, and WQM distributes the chunks across worker processes and can provide the info that the work is done.

However, recently, I got an interesting question: there's a large logical transaction composed of ~1,000,000 individual objects and SQL inserts and updates. Some updates are CPU-intensive, so the original idea was to use WQM to split an update into chunks to speed things up. 

But, here's a catch: if one of the individual 1,000,000 changes fails (there's a variety of application-level checks so that it can fail, and that's not even that abnormal a behavior), the entire transaction must be rolled back. That creates a problem: each chunk must report success before committing their individual transactions, and someone must get all these reports and decide if we are committing or not.

Unfortunately, it looks like WQM does not have a bidirectional communication between workers and manager, so I suggested an approach using events:

1. Start jobs.
2. Wait for all jobs to report success using $System.Event.WaitMsg().
3. Send Commit or Rollback using the $System.Event.Signal().

Hi Team, we are going to deliver a speech on a developer forum where most developers hv not used our tech before but using other database and integration technologies , Pls give us some key points on why they should adopt us and the benefits you can get, especially if you change your tech stack from others to IRIS. Thanks a lot!

Hi Interoperability experts!

Recently noticed an interesting conceptual discussion in our Interoperability Discord channel to which I want to give more exposure.

All we know that typical InterSystems Interoperability production consists of the following chain:

Inbound adapter->Business Service->Business Process->Business Operation->Outbound adapter.

And Business Process (BO) here is always considered as a passive "listener" either on port/folder/rest API for an incoming data.

It's been a while (and everyone is well-rested after Advent Of Code!) so let's run another round of Code Golf.

Your task is navigating in a grid-like labyrinth in a clockwise spiral pattern. As it traverses the matrix, it collects characters, revealing a secret message. Your challenge: find the shortest, most elegant code to decode this spiral cipher.

Hi folks!

How do you edit data in IRIS or Caché? What do you use?

Change globals directly via Management Portal?

Change data using SQL?

Use your favorite dev tool? Which one?

Crafted your own?

Share your experience, please?

After seeing several article raving about how ground-breaking the recent release of ChatGPT is, I thought I would try asking it to help with a Caché newbie question:  How do you find the version of InterSystems Caché?

To be honest, I was quite surprised at what the chat bot told me:

Hi community,

The parquet file format is the evolution of the CSV file format. See the differences when you process data in the AWS using CSV and Parquet:

Do you like to have support to parquet files in the InterSystems IRIS?

It's Friday and a long weekend is upon us, so let's have a round of code golf!

Nowadays, it's rare to find a text message without at least one emoji. 😃😄😎🙂😊😀😁😆😂 But back in the day, people had to be creative to express their emotions in text. They would use emoticons, which are symbols made up of keyboard characters :^) =] ) B). Our challenge for today is to create a function that receives a string as argument and returns the total number of smiling faces or happy faces. Each smiley face must have one smiling mouth, which should be marked with ), ], }, D or >. A smiley face can have a pair of eyes but it does not have to. Valid characters for eyes are :, ;, 8, B or =. A nose is optional, and can be represented these characters: -, ^, c, o and ~.

Valid smiley face examples:

    :) :D ;-D :~) :‑) :-] =)    
    :] :-> :> 8-) :D 8‑D )
    8) :-} :} :o) :c) :^) =]
    :‑D 8D =D B^D

Input

"count how many smiley faces are here :)"

​

Output

1

How do you collect stack info when debugging non-interactive jobs?

I cobbled this together today from the docs, but maybe there's something pre-built? LOG^%ETN()?

set stack = ""
for loop=0:1:$STACK(-1) { 
      set stack = stack _ "Context level:" _ loop _ " Context type: " _ $STACK(loop) _ $c(10,13) _
                          "  Current place: " _ $STACK(loop,"PLACE") _ $c(10,13) _
                          "  Current source: " _$STACK(loop,"MCODE") _ $c(10,13)
}

Log meth

Once again I would like to know, if there are any plans to make Java libraries available through normal channels like public mvnrepository, like the whole world it's doing, where anyone can find any JDBC driver to any database in the world but InterSystems.

Currently there is only some useless garbage. There are just very empty files. What was the point of posting it there?

I'm really interested in contributing, but this issue is a huge stopper, and I don't want to do anything.

@Bob Kuszewski @Jeffrey.

Hi Developers!

How do you handle errors with &sql a.k.a. embedded SQL?
I think I found a universal error-handling template which works in any situation:

&sql(SELECT * FROM Sample.Person)

if SQLCODE < 0 throw ##class(%Exception.SQL).CreateFromSQLCODE(SQLCODE,"Context description")

What is your choice?

We are very eager to learn what kind of feedback you might have for InterSystems.

We hope you had a chance to download and install one of the kits that show how the new process works. If not, you still can do it, following the instructions on these posts:

• https://community.intersystems.com/post/how-do-i-apply-nopws-early-acce…
• https://community.intersystems.com/post/discontinue-apache-web-server-installations-aka-private-web-server-pws

Our target release is InterSystems IRIS 2023.2 (and InterSystems IRIS for Health 2023.2) and will be available in a few months.

The IRIS Management Portal is localized (translated) for some (many?) languages and the language used by the Management Portal interface is determined by the browser settings, often derived from the OS settings (can be changed).

This means that if a user, like me, want to use ONLY the English version of the Management Portal, each and every time you login you need to change the language. VERY annoying.

I know I can change the language configured in Browser, BUT, I want to use English for the IRIS management portal non for all my internet activity!

Images for other languages are often build using multistage build process.

What about InterSystems IRIS?

Consider this Dockerfile:

FROM irishealth-community:2020.4.0.524.0 AS builder

# Load code into USER and compile
# Adjust settings, etc.

FROM irishealth-community:2020.4.0.524.0

# replace in standard kit with what we modified in first stage

COPY --from=builder /usr/irissys/iris.cpf /usr/irissys/.
COPY --from=builder /usr/irissys/mgr/IRIS.DAT /usr/irissys/mgr/.
COPY --from=builder /usr/irissys/mgr/user/IRIS.DAT /usr/irissys/mgr/user/.

The advantage of this approach is the image size.
The disadvantage is that on a final stage developer must know/remember all the modified places in the builder image.
But otherwise is this approach OK for InterSystems IRIS?
Have anyone tried to build IRIS images this way?

Hi Devs!

A few months ago I raised a discussion on the naming convention for ZPM modules.

And you free to put your name or your organization name for the packages you want to have your personal or company's brand.

But if you contribute to community, we suggested to have "community." package for all such libraries.

But the name is too long.

What if we use "isc." instead?  Which can be read as "isc ->InterSystemsCommunity". Short and unique.

What do you think?

Hi, Community!

Open Exchange (OEX) is getting more and more popular and more and more developers consider publishing their apps in the public package manager registry.

This is really great!

So the topic of thoughtful naming convention is getting more important and even critical.  Let's discuss?

Hello everyone, 

My team is currently developing guidance and best practices for the generation, storage, and deployment of TUNE TABLE statistics across development and production environments. With that in mind, we want to get an idea of what methods teams in the field have developed for handling this data. In particular, we’d like to know the following: 

1. How often do you use TUNE TABLE in your development vs. production environments? 
2. Do you utilize the $SYSTEM.SQL.Stats.Table package to generate and export TUNE TABLE statistics as files? If so: 
   1. Do you store these in source control?

Hi all,
I needed to pick up the username from a set of credentials configured for a business operation in an interop production, and it turned out to take a few steps, so I'm sharing my method here, in the dual hope that someone has an easier way to do it, or failing that, that it is useful to someone.
Best,
Otto

Hi Developers!

Often we need to use relatively small arrays with constants, static arrays in algorithms, etc where we need to do something with each element of an array. There are several ways to deal with it in ObjectSctipt. 

Previously I used to use globals, locals, PPG for this but not so long time ago figured out that %List is a way too handy.

Indeed, suppose we have an array of months and need to set up and use it in our code.

Hi devs!

What is the best way to return JSON in IRIS for a GET request in a REST app?

This is how I do it now:

ClassMethod GetAllPersons() As %Stream.Object
{
    d ..%SetContentType("application/json")
    Set rset = ##class(dc.Sample.Person).ExtentFunc()

    set stream=##class(%Stream.TmpCharacter).%New()
    d stream.Write("[")
    if rset.%Next() {
        Set person = ##class(dc.Sample.Person).%OpenId(rset.ID)
        Do person.%JSONExportToStream(.stream)
    }
    While rset.%Next() {
        d stream.Write(",")
        Set person = ##class(dc.Sample.Person).%OpenId(rset

I would like to watch a webseminar about debug objectscript techniques into vscode to rest api, productions and embedded python, specially using docker instances and remote servers.

I am currently adding a field to our Existing messaging from Epic, however there might be a possibility I need to back load data into the Ancillary system. While I have the previous messages that can be sent, they do not have this additional field that I am adding to the message.

I can do a lookup against Epic Clarity SQL Database; however, I don't want to throw a wrench into the workflow if the system cannot connect to the Epic Clarity SQL Database.

• What is the best solution for this?

Hi VSCode users!

Just want to check with you, is this settings.json file ideal enough if I:

1. Want VSCode to connect to IRIS in docker?

2. Want to use VSCode SQL Tool?

The connection settings file:

{
    "files.associations": {
    
        "Dockerfile*": "dockerfile",
        "iris.script": "objectscript"
      },
    "objectscript.conn" :{
      "ns": "IRISAPP",
      "username":"_SYSTEM",
      "password": "SYS",
      "docker-compose": {
        "service": "iris",
        "internalPort": 52773
      }
    },
    "sqltools.

With rapid evolution of Generative AI,  to embrace it and help us improve productivity is a must. Let's discuss and embrace the ideas of how we can leverage Generative AI to improve our routine work. 

The IRIS Installation Guide for Linux, Installation Directory section, says "Do not choose the /home directory, any of its subdirectories, or the /usr/local/etc/irissys directory." but there are no suggestions or any default.

What are your opinions on this? For example, I see that IRIS in a Docker container is installed in /usr/irissys. I'm wondering why that directory was chosen.

The official Linux filesystem docs say:

• /usr is the second major section of the filesystem. /usr is shareable, read-only data.