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#Caché

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InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

I'm having trouble adjusting the protocol used for any CSP Requests. Currently all request to the system are sent over HTTP 1.1

When loading 40+ images on a page, the browser starts stalling request. According to google HTTP 1.1 only allows 6 parallel TCP Connections before suspending the remaining.

I have looked through the Web Gateway Settings, %Net.HttpRequest.HTTPVersion and SSL Configuration but haven't found anything.

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Question
· Nov 1, 2023
set Property name

hi

we have a rest API that that on of the JSON object contain Property name "verify.facePosition"

we try to translate the JSON file to object with the function ##class(%ZEN.Auxiliary.jsonProvider).%ConvertJSONToObject()

how can we define the Property to "verify.facePosition" As %Boolean in the class ?

i know that with underscore i can define the property with quotation marks like this - Property "verify_facePosition" As %Boolean

thanks for the help

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Article
· Jun 8, 2023 1m read
How to write SELECT ... FOR UPDATE

InterSystems FAQ rubric

Since SELECT ... FOR UPDATE is implemented in many RDBMS as a method of explicit row lock acquisition, I think there are many cases where this function is used.

This syntax is not an error for InterSystems products, but it does not acquire row locks as expected.

This article will show you how to achieve equivalent functionality.

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Hi Community,

We're pleased to invite you to the upcoming webinar in Hebrew:

👉VS Code - Beyond the Basics 👈

📅 Date & time: February 6th, 3:00 PM IDT

https://www.youtube.com/embed/uT5sqSwtF0k
[This is an embedded link, but you cannot view embedded content directly on the site because you have declined the cookies necessary to access it. To view embedded content, you would need to accept all cookies in your Cookies Settings]

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Question
· Aug 31, 2023
SELECT command within CSP

The program below works perfectly when I call it directly from the Terminal, however when I call it from within a CSP it does not work (It does not do the SELECT).

In the USER namespace, the program works both in the Terminal and on the CSP , but in another namespace it only works when called directly in the Terminal.

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Hello community members!

I am trying to connect to Caché database from Azure data factory using ODBC connection. The aim is to read data from Caché and write it in Azure blob storage using copy activity. The ODBC connection is successful and i can see the Caché tables, but i'm facing an error while reading the table contents.

I'm getting the below error :

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InterSystems FAQ rubric

If multiple InterSystems products are installed on the same system, the latest version of the InterSystems ODBC driver among the installed products will remain registered in the driver manager.

You can change to any driver by changing the registry entry below.

Please note that running RegFiles.bat does not change the ODBC driver.

The registry entry is as follows.

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Hi all,

We are doing a SQL server upgrade to SQL server v.15 from a legacy server which had v.10 . I have our Cache server as a linked server int order to pull data from our system. When building out the ROWSPEC, I have my fields typed as %String with various lengths with one field having a max length of 15000. The SQL server is trying to interpret this as a text data type instead of varchar(n). Text is a depracated data type since SQL server 2008. The error below is produced when trying to query from this view

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Hi I am trying to run a debugger in VS Code. I have the settings.json file and the launch.json file. I am trying to debug code using the attach to a process method, however when I run the debugger I get the following error.

Launch.json code

{

// Use IntelliSense to learn about possible attributes.

// Hover to view descriptions of existing attributes.

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I have some databases in my cache instance that were created from an online backup file (.cbk). I would like to see the information for these databases in the Databases and SQL sections of Management Portal, but they only appear in the Classes section. I can navigate to the files in my cache instance terminal and see the CACHE.DAT files, and a check in the terminal shows that they are mounted.

This is what I see in the terminal for each database when I check to see if the databases are mounted:

%SYS>set db="/path/for/mydatabase"

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InterSystems FAQ rubric

※Use this method if you want to compare databases that have been replicated using mirroring, shadowing, or some other mechanism.

You can use the DATACHECK utility to compare global variables. Please refer to the document below.
Overview of DataCheck [IRIS]

***

Routine comparisons use the system routine %RCMP or the Management Portal.

Below is how to use it in the Management Portal.

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We have a machine that serves 4 instances of Cache on VMS systems, one of them is password protected and works fine as they all do. we decided we wanted something beefier and copied it to a server, well all but the one you have to login to works so 3 of the 4 do. and the odd part is I can no longer get to the management page from anywhere on any machine, http://localhost/csp/bin/Systems/Module.cxw I get a 404.8 error, I have tried adjusting security and same thing. and a server availability error.

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Article
· Jul 6, 2023 1m read
How to overload methods in ObjectScript

InterSystems FAQ rubric

The InterSystems ObjectScript language does not allow you to define methods of the same name with different arguments. It is generally classified as a programming language called a dynamic language.

In ObjectScript, you can freely control which arguments are used when executing a method, so unlike languages ​​such as Java, which are not dynamic programming languages, there is no need to strictly distinguish methods by the number of arguments at the compilation stage.

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InterSystems FAQ rubric

For volatile tables (tables with many INSERTs and DELETEs), storage for bitmap indexes can become inefficient over time.

For example, suppose that there are thousands of data with the following definition, and the operation of bulk deletion with TRUNCATE TABLE after being retained for a certain period of time is repeatedly performed.

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Hello Everyone,

We currently have CSP application that runs under 2 servers(usually primary), and every month the server reboots for patching SERVER1(primary) in the morning and SERVER2(backup) at night.

Whenever the SERVER1 reboots SERVER2 behaves as primary and when SERVER1 comes back up it will act as backup server.

First Patching:

So, when SERVER1 is down, I need to start httpd service for SERVER2 and stop httpd service for SERVER1 (which is now backup server).

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Question
· Jul 13, 2023
$zu(96,9) Not working

Suppose you have routine ^A loaded in your partition in programmer mode and you call routine ^B. Routine ^B finds the value of $ZU(96,9) which should be the calling routine.

But $ZU(96,9) now returns null, as does $SYSTEM.Process.CallingRoutine()

Works on 2018.1.7 but not 2018.1.8

$ROLES= %All on both systems

More precisely I have line label ZZPP in ^%ZLANGC00 which needs to identify the original routine in the partition and do some work on it. When I type ZZPP I get nothing on the later version. Here's the line of code:

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I am trying to execute a program from within cache using a $zf call

S X=$ZF(-1,"C:\""Program Files (x86)""\Car-Part\Messaging\iCPM.exe")

For the sake of this post I changed it to open notepad

S X=$ZF(-1,"C:\Windows\notepad.exe")

If I call it directly from terminal notepad opens and all is happy.

If I add it to a program we use to run certain tasks once an hour or even every 10 minutes it will fire off notepad but it will be in the background.

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We've implemented SAML authentication for our application where we are the service provider and various other entities are the identity providers. We've done successful connections with several identity providers including Okta, Duo Mobile, Ping Identity, and Azure. Validating the SAML response with signed assertions has been working great. Now, I am trying implement support for the SAML assertions in the response being encrypted for a new identity provider and struggling to understand procedurally how to go about this.

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I'm dealing with a situation that leaves in doubt what I understand about CACHE.WIJ (C:\Roche\CobasInfinity\HealthShare\mgr)..
Journal files store records already written to the base.. and CACHE.WIJ records not yet written to the base..
theoretically, the data contained in CACHE.WIJ is temporary... until the record is written to the base (consequently generating journal).

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