Article
· Nov 11, 2016 2m read
Caché process failures on RHEL V7.2

Caché process failures on RHEL V7.2

InterSystems WRC has investigated several issues of process failure that can be attributed to a recent change in Red Hat Linux.

A new feature implemented in RHEL V7.2 (systemd-219-19.el7.x86_64) can cause O.S. IPC (Inter-process communication) semaphores to be deallocated when a non-system RHEL user logs out (system users, i.e. with a UID number < 1000, are excluded)

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I have several business operations that are all pointed to the same http server. Is there a way to set the http server within some sort of properties file or within the objectscript code? I want to be able to set the http server setting once rather than for every business operation. Any advice on how to go about doing this would be appreciated.

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Article
· Jun 10, 2019 2m read
GitHub now supports ObjectScript

Hey developers,

I have great news for you. A few days ago, GitHub was updated with the latest version of linguist project, which is being used to recognize source code types in repositories. It helps to determine which programming language had been used in every file of the repository. Repository statistics section shows the results of this module work.

Also, you can search across all available GitHub repositories for any chosen language.

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Hello,

When creating an outbound X12 file (834, 835, 837, etc), what's the easiest way to keep a segment count to use in the SE01 element? Other mapping tools I've used either detect it's an X12 file and do this automatically, or there's an option to keep a count after each outputted segment. The Data Transformation tool within Health Connect doesn't seem to have similar functionality, but I could just be missing something. Any help would be greatly appreciated!

Thanks,

Jason

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Question
· Jun 6, 2019
DICOM document path querying

Say you have a DICOM document with an input information sequence with many sequence items. You could access every item one by one by looping and querying the path by passing it to the GetValueAt method as demonsrated below.

This works but there are some performance issues on my system if the document has to be read for each query (as far as I know, that is the case on my system). Is there a way of querying a path, which would return the sequence items as an array? I think I am missing something. With 900 items the process takes around 20 seconds currently.

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Hi Everyone!

One more session recording from Global Summit 2018 is available on InterSystems Developers YouTube Channel:

InterSystems IRIS in a Container

https://www.youtube.com/embed/gaZfBdQYnVE
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Question
· Jun 10, 2019
Purge timeframe

Hi all.

I was wondering if anyone knew if the purge tasks in Ensemble consider a day to be midnight to midnight, or 24 hours from the time of running the task?

Thanks!

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Hi Community!

I have very good news for the developers, who are using GitHub to host projects with InterSystems ObjectScript. GitHub introduced the support of InterSystems ObjectScript this week!

How does it work?

Now all the .cls files in your repository are considered as InterSystems ObjectScript and highlighted according to the language rules of ObjectScript. For example WebTerminal, Samples-Data.

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Article
· Jun 10, 2019 1m read
more usefull Object Dump

During testing your code you are often confronted with the need to examine
the actual content of an object. Either using ZWRITE or $system.OBJ.Dump()
you get a picture of simple properties as "--- attribute values ---"
while "--- swizzled references ---" are more confusing than informative
and with "--- calculated references ---" you are just left in the lurch.

This small helper class allows you to dump an object to terminal or
e.g in background to some stream for later review.
By default, you see just properties with content,

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Hi Community!

Please welcome a new video on InterSystems Developers YouTube Channel:

Adopting InterSystems IRIS

https://www.youtube.com/embed/XKc0_qXS87c
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I have a custom process that is parsing HL7 and inserting it into a table. Periodically the inserts fail with # due to error: ERROR #5803: Failed to acquire exclusive lock on instance of....

Traditional databases would wait until the lock is removed then do the insert, but cache fails. I'm sure it's my coding approach.

How can I work around this? A Try/Catch loop?

Thanks in advance.

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hi, i am new to Studio and also new to objectscript, but i am not new to programming and

want to implement some synonymfunctions e.g. LOCATE should be used as InStr (.. like in much languages ;o)

more generally spoken, i want to implement a library for my string routines BUT of course i want an need autocomplete.

defining a macro $$$InStr does no autocomplete when i type $$$In<CTRL-SPACE>

example: my lib is called STRINGS and the functions are: InString, Split, ...

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Hi Community!

This is the update on what are the new applications submitted on OpenExchange in May 2019

New Applications

Background Jobs over ECP published by @Robert Cemper

An internal variant of a PIPE

Simple Remote Server Control published by @Robert Cemper

Simple monitoring of several servers at a lightweight level

iris-nodejs-101 published by @David Reche

This application demo a REST API build in node.js able to receive HTTP GET, POST and DELETE of custom JSON

Sea Battle published by @Evgeny Shvarov

Simple terminal game an approach to "Sea Battle". Example of simple ObjectScript method calls and terminal interaction The code is an ObjectScript remake of Python example in CodeAcademy

PHP-module for Caché published by @Sergey Kamenev

This is PHP-module for InterSystems Caché. In current moment module works only locally, on same server where running Caché. Module has excelence speed because uses c-callin interface for access to DB.

PHP-module for IRIS published by @Sergey Kamenev

This is PHP-module for InterSystems IRIS. In current moment module works only locally, on same server where running IRIS or Caché. Module has excelence speed because uses c-callin interface for access to DB.

TSQL Checkers v.1.0.0 published by @Anton Umnikov

Demonstration of TSQL support in InterSystems IRIS. Checkers game

isclib v.2.1.0 published by @Kyle Michel

Go library for interacting with InterSystems Corporation products like Cache and Ensemble<--break->

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Hello,

I assume there is a simple explanation for this, but I do get <OBJECT DISPATCH> error, when I am trying to set a global to a value.

My example is huge, but I reproduced it using Samples namespace:

First I delete the Title from ##class(Cinema.Film) - 3

Secondly:

SAMPLES>s ref=##class(Cinema.Film).%OpenId(3)
SAMPLES>w ref.Title

SAMPLES>set ^AK(1)=$G(ref.Title)

SET ^AK(1)=$G(ref.Title)
^
<OBJECT DISPATCH> *Property 'Title' in class 'Cinema.Film' must be MultiDimensional

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Article
· Jun 5, 2019 1m read
Using Interjob Communication (IJC)

Earlier I've written about command pipes.
This is the internal variant of a PIPE.

To make this more tangible and visible for you I prepared a small example
The scenario is to run a monitoring process that receives
input from an unknown number of sensors. (Could be Lab equipment or similar.)

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