All time
While performing the IRIS upgrade on our backup test server I noticed the following error in the messages log after restarting IRIS:

04/26/24-16:28:36:788 (5701964) 1 [Utility.Event] (HSHCPRT) Failed to retrieve journal file #9567 from FCHHSHCPRTTX02/PRT: Failed to allocate a 33686036 byte tcp buffer for zlib compress.

Stumped on this one, I logged a WRC and looked at some things with support but was not able to resolve the issue. Any help would be greatly appreciated.

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InterSystems Developer Community is a community of 24,996 amazing developers
We're a place where InterSystems IRIS programmers learn and share, stay up-to-date, grow together and have fun!

Hi All! We have a new online course that those of you who do integration work / create data transformations may be interested in: Editing Data Transformations via Code. This course is meant to build familiarity with the code behind data transformations in InterSystems products, enabling you to identify their class structures, logical elements, and more.

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Introducing Smart Clinical Sidechick — the intelligent, no-drama partner your EHR wishes it could be. She reads FHIR data in real time, interprets lab results without ghosting, and explains clinical alerts like she actually cares. Built with GPT-4 brains and YAML sass, she’s not here to replace your main EHR—just to make it look bad. Tired of irrelevant alerts and cryptic warnings? Sidechick serves up real, explainable insights, not vague “elevated risk” vibes. And when your backend crashes, she doesn’t panic—she self-heals.

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Discussion
· Mar 21
Transforms in COS over DTL

Hi All,

After doing IRIS/Ensemble etc for 20 years I've come across a company who have very odd view, especially about DTL's and routers.

They have convinced themselves to use COS for transforms (including HL7) and for routers (and one of their 3rd party providers agree!)

Their reasons are; efficiency, compatibility, flexibility, power and re-usability.

Of course these reasons are wrong!

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Hi, Community!

🔒Are you linking your InterSystems Cloud Services deployments to a private network? See how to do this securely:

Creating and Managing VPNs with InterSystems Network Connect

https://www.youtube.com/embed/NvAbvzmetB8?utm_source=youtube&utm_medium=social&utm_campaign=NvAbvzmetB8
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February 19, 2025 – Alert: SQL Queries Returning Wrong Results

InterSystems has corrected two issues that can cause a small number of SQL queries to return incorrect results. In addition, InterSystems has corrected an inconsistency in date/time datatype handling that may lead to different, unexpected – yet correct – results for existing applications that rely on the earlier, inconsistent behavior.

DP-436825: SQL Queries with Lateral Join May Return Wrong Results

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I would like to send bundle object to a router and then
perform a DTL with in the routing rule ( this BundleObject as a source to my DTL).
during this process , I get below exception

reqStream = json content in a stream

Set BundleObject=##class(HS.FHIR.DTL.vR4.Model.Resource.Bundle).FromJSON(reqStream,"vR4")

Set tSC = BusinessService.SendRequestSync("SAMPLE_ROUTER", BundleObj)

expection :

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Article
· May 19, 2024 2m read
Reviews on Open Exchange - #44

If one of your packages on OEX receives a review you get notified by OEX only of YOUR own package.
The rating reflects the experience of the reviewer with the status found at the time of review.
It is kind of a snapshot and might have changed meanwhile.
Reviews by other members of the community are marked by * in the last column.

I also placed a bunch of Pull Requests on GitHub when I found a problem I could fix.
Some were accepted and merged, and some were just ignored.
So if you made a major change and expect a changed review just let me know.

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Hello Community,

I'm executing the same query with same column name but in different case. An unique cached query generated while query executed first time. The query preparser only normalize the keywords and send to the SQL engine generates the Hash. Eventually use the cached query next use.

Now my question, The hash values are same for both of the queries. Then why it creates two cached queries.

Query1: select * from MyLearn.Test where Name['Kev1'

Query2: select * from MyLearn.Test where NamE['Kev1'

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In my previous article, Using LIKE with Variables and Patterns in SQL, we explored how the LIKE predicate behaves in different scenarios, from Embedded SQL to Dynamic SQL, and what happens to performance when wildcards and variables come into play. That piece was about getting comfortable writing a working LIKE query. But writing SQL that works is only the starting point. To build applications that are reliable, scalable, and secure, you need to understand the best practices that underpin all SQL, including queries that use LIKE.

This article takes the next step. We’ll look at a few key points to help strengthen your SQL code, avoid common pitfalls, and make sure your SELECT statements run not just correctly, but also efficiently and safely. I'll use SELECT statements with LIKE predicate as an example along the way, showing how these broader principles directly affect your queries and their results.

*This is what Gemini came up with for this article, kinda cute.

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Hi Community,

We're continuing to improve and teach our Developer Community AI, and in this iteration, we've added descriptions of Open Exchange Applications to the knowledge base!

This new feature will allow DC AI to search app descriptions to answer your questions. This will give you better answers that require programming, not just general information.

To add this knowledge to your search, just tick the checkbox Open Exchange Applications:

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Hello all,

We are currently developing a set of cubes in Unified Care Report (UCR) for data analysis purposes. However, we are encountering issues with cube dependencies, where certain cubes rely on others to be compiled beforehand. The complexity of these dependencies is becoming increasingly difficult to manage, particularly when attempting to deploy the cubes.

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Seeking:

  • IRIS for Health Platform experience a MUST (version 2021 and above)
  • Coding and developing components in Objectscript (5+ Years)
  • Experience in H7L (ADT’s) and FHIR (3+)
  • Experience in IRIS IKO’s, GKE, K8’s and Cloud Technology (2+)
  • Experience in IRIS Ensemble Cache, SDA’s

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I finally figured out how to get JWT token using set x = ##class(%SYS.OAuth2.Authorization).GetAccessTokenClient("medbank","openid fhirUser",.prop,.err).

I also found iris-fhir-client app on Open Exchange. I registered Epic sandbox server, but I cannot list resources. I suspect I need to integrate authorization / authentication. How do I do this with irisfhirclient py?

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Article
· Sep 29, 2024 1m read
IRIS Test Data Generator

The test data generator is mainly used to generate test data, which can be used to generate test data for tables and fields to meet the needs of different fields according to different types, currently supports Text, Number, Enum, UUID, regular expression, Multiple date and time formats, and Time Seven different types

How to use:

1. Select a namespace, you can see all the tables under the namespace,

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