Tips & Tricks

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I am currently evaluating Source Control systems that we can use for both MS SQL, MS Visual Studio, and InterSystems IRIS. For both MS SQL and MS Visual Studio we do have the option of either Azure or GitHub.  I understand when we upgrade to IRIS 2019.1 we have options for Source Control, and in previous Global Summit's I have heard GitHub discussed.  So why can't I user GitHub for both MS SQL/MS Visual Studio and IRIS?

A couple of questions come to mind starting to think about Source Control

Last answer 20 hours 7 min ago Last comment 20 hours 5 min ago
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Every developer has made the mistake of accidentally leaving temporary debug code in place when they meant to remove it after debugging is complete.  The great thing about writing in ObjectScript is that there is a way to make temporary code be truly temporary and automatically self-destruct!   This can also be done in such a way that the code has no change of making it into your source control stream, which can be helpful as well.

Last comment 6 days ago
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We are constantly running into issues where there are billions of Orphaned messages in our system that cause problems, and we have to manually run a cleanup to fix performance issues.

 In the following article about orphaned messages... https://community.intersystems.com/post/ensemble-orphaned-messages it mentions either programmatically eliminating the Orphaned messages or using a Utility like Demo.Util.CleanupSet in ENSDEMO.

Last answer 13 days ago Last comment 11 days ago
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In this post I show strategies for backing up Caché using External Backup with examples of integrating with snapshot based solutions. The majority of solutions I see today are deployed on Linux on VMware so a lot of the post shows how solutions integrate VMware snapshot technology as examples.

Last comment 30 September 2019
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This article will provide tips and tricks on customizing Ensemble business hosts with configurable settings.

Ensemble production Settings are configurable values that control the behavior of a production and its hosts.

The documentation for adding and removing Settings and specifying categories and controls for Settings is provided at the link:

http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=EGDV_prog#EGDV_prog_settings

Last comment 18 September 2019
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The Management Portal allows you to Export one or more globals to a file that you can then Import into that or another namespace.  However, the Management Portal can only be used to export entire globals.  For exporting selected nodes or subtrees within a global, a different utility is necessary.   This utility is the Export() classmethod in the %Library.Global class, which can export an entire global but also has the ability to export selected nodes or subtrees.

Last comment 5 September 2019
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Hello everyone,
After some work with IRIS we want to share our ToolBox-4-Iris with you.

What is this about?

The ToolBox-4-Iris is an API for IRIS with a collection of handy and useful tools - features that are not available in IRIS, but greatly simplify application development. To save time and effort on the "typical tools" that every developer needs. This includes additional classes, individual methods or even more efficient macros, which are described in the respective packages.

Content

Last comment 2 September 2019
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For Cache client install automation, where are the remote server settings stored on a Windows 10 PC? 

Are they stored in the registry?  I found the Cache registry key, but it only lists the remote server address and not the ports.

Are they stored in an INI file?  If so, I haven't found it yet.

I can push the client install via the very helpful CEDocs URL (https://cedocs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=GCI_windows_silentinst

Last answer 7 August 2019 Last comment 7 August 2019
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There's an easy new way to add certificate authority (CA) certificates to your SSL/TLS configurations on InterSystems IRIS 2019.1 (and 2018.1.2) on Windows and Mac.  You can ask IRIS to use the operating system's certificate store by entering:

%OSCertificateStore

in the field for "File containing Trusted Certificate Authority X.509 certificate(s)".   Here's an image of how to do this in the portal:

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The topic of for/while loop performance in Caché ObjectScript came up in discussion recently, and I'd like to share some thoughts/best practices with the rest of the community. While this is a basic topic in itself, it's easy to overlook the performance implications of otherwise-reasonable approaches.

Last comment 12 July 2019
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Hi Dev Community,

My team is currently working on a project where we need to post pdf documents to a 3rd party REST API.

The API specifies a field in the JSON request message to contain the 'physical content' of the file as an array of bytes, example of the JSON request as follows - data truncated for readability purposes:

Last answer 1 July 2019 Last comment 17 June 2019
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This is embarrassing. I should know how to do this but I have forgotten.

I know the slowness of the 'Source' and 'Target' parameters in Message message viewer being slow to load is caused by the Bitmap indices of Ens.MessageHeader.

I know I need to run the 'bitmap index clean up' routine for Ens.MessageHeader to fixed the issue.

 What I forget is how to do this? 

Last answer 28 June 2019 Last comment 27 June 2019
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Note (June 2019): A lot has changed, for the latest details go here

Note (Sept 2018): There have been big changes since this post first appeared, I suggest using the Docker Container version, the project and details for running as a container are still in the same place  published on GitHub so you can download, run - and modify if you need to.

Last comment 12 June 2019
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The code of %Z.obj is available on Open Exchange.

During testing your code you are 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.

Last comment 10 June 2019
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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.

Last comment 18 March 2019
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Let's imagine you have only SQL. You need some table where you should increment value in some property when you update this line.

We have the table

CREATE TABLE "test" (
  "identifier"   VARCHAR(200) NOT NULL,
  "value"        INTEGER,
  PRIMARY KEY ("identifier")
)

Last answer 6 March 2019 Last comment 6 March 2019
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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>

Last answer 2 March 2019 Last comment 4 March 2019
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Mirroring 101

Caché mirroring is a reliable, inexpensive, and easy to implement high availability and disaster recovery solution for Caché and Ensemble-based applications. Mirroring provides automatic failover under a broad range of planned and unplanned outage scenarios, with application recovery time typically limited to seconds. Logical data replication eliminates storage as a single point of failure and a source of data corruption. Upgrades can be executed with little or no downtime.

Last comment 8 December 2018
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The goal of this “DeepSee Troubleshooting Guide” is to help you track down and fix problems in your DeepSee project.

If the problem can’t be fixed by following the guidelines, you will at least have enough information to submit a WRC issue with DeepSee Support and provide all the evidence to us, so we can continue the investigation together and resolve it faster!

Last comment 29 November 2018
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EnsLib.HL7.Message.cls provides many API methods for manipulating an HL7 message.  RemoveSegmentAt(), for example, can be used to remove a segment by path or index, but only one segment at a time.   There may be times that you'll need to remove all segments within a group or even many groups of segments from the HL7 message.  Surely you can iterate through each segment in each group and remove them one by one, but there's a much easier way. 

 

With just one command, like below, you can remove all OBX segments in an ORU_R01 message (msg):

Last comment 14 November 2018
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