I am trying to use Entity Framework with Visual Studio 2017. After following the Intersystems documentation ("Using the Caché Entity Framework Provider") I still cannot see the data source in Server Explorer. Any ideas why?

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Question
· Mar 8, 2018
Parallel execution in COS

Hello community,

I need to perform some processing-heavy operations on a set of input objects and I would like to utilize more than a single processor core to do the heavy lifting.

Is there any way to call methods in parallel and wait for the results in a blocking way?

Basically, I am looking for an equivalent of the pythonese

with Pool(n) as p:
results = p.map(function, data)

Thanks

Jiri

EDIT: Correct English :)

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Question
· Dec 4, 2018
%Unit Test Case

This is the class which I want to test.

Class GSK.MyTestUnit Extends %RegisteredObject
{

ClassMethod Add(num1 As %Integer, num2 As %Integer)
{
s res=num1+num2
q res
}
}

This is my testing class.

Class GSK.TestingClass Extends %UnitTest.TestCase
{

Method test()
{
Do $$$AssertEquals(##class(GSK.MyTestUnit).Add(3,8),41, "Test Add(2,2)=4 passed ")
do $$$AssertNotEquals(##class(GSK.MyTestUnit).Add(3,8),11,"pass/fail")
}

}

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Hi I am getting below error while upgrading cache instance. Please suggest.

Error: ERROR #70: *** Error while formatting volume because
ERROR #18: failed creating a new volume initializing CACHETEMP, /*****/databases/cachetemp/ - Shutting down the system
An error was detected during Cache startup.
** Startup aborted **

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Hi, all!
As I know, InterSystems recommends the use of Huge Pages. And if count of Huge Pages is enough, we'll see (in cconsole.log) something like this during Cache startup:

12/29/17-14:40:50:360 (3625) 0 Allocated 4630MB shared memory using Huge Pages: 4096MB global buffers, 256MB routine buffers

But if count of Huge Pages is not enough for location of all Globals and Routines caches, Cache won't use Huge Pages.

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I have a cache client with a list of several servers.

One of the server is working with an IIS server that is not the Cache DB server.

The connection to the IIS server is only through https (SSL)

I tried to define the Web Server IP Address to https://some.server.name but it didn't let me to specify the https

So I tried to define Web Server Port to 443 but when I chose the SMP it's trying to open http://some.server.name:443/csp/sys/UtilHome.csp

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Let's say I want to execute this cache script (saved as test.txt) from OS terminal:

zn "USER"
write 1
zn "%SYS"
write 2
halt

Executing the following command in a terminal:

csession cache < test.txt

Would yield this output:

$ csession cache < script.txt

Node: gitlab-test, Instance: CACHE

USER>

USER>
1
USER>

%SYS>
2
%SYS>
Job succeeded

Is there a better way to run these scripts?

Currently I have two problems:

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How to convert SQL persistent classes to JSON output - I have tried 1 option but appears to be very lengthy process.

I have many other SQL storage's defined and have to expose them as well to JSON. Can anyone please suggest a better approach.

My column names usually match with my Json properties.

My User.TestClass is the class with GetJsonList() as my method to return /output JSON formatted data.

The Code tried and SQL storage structure are as follows -

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Question
· Jan 14, 2018
Find last in a list of objects

I have a class to track data changes.
As it becomes slower and slower to find last changes I think I need an index.
The 2 classes are just simplified reality.
HowTo ?

Class Rick.ChangeItem Extends %SerialObject
{
Property Subject As %String;

Property Author As %String;

Property Change As %TimeStamp;
}

and

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Hello,

I have a property which I need to move from one class definition to another as follows:

Old definition:

Class SCHED.SchedEntry
{
  
  Property Experiment as %String;

  Property ScanSlot as list of TracerEntry;

}

Class SCHED.TracerEntry
{
  
  Property Tracer As %String

}

I want to move the Experiment property to the TracerEntry class so that there is a different Experiment allowed for each ScanSlot, like this:

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Question
· Feb 20, 2018
REST Data Limit

I'm experimenting with sending large amounts of data in a POST payload to be stored as a stream. However I've noticed that no matter how many characters are in the message, Cache only gets about 32k of them, cutting off the rest. Conversely as expected it can only send about 32k worth of characters in a payload.

Before I get creative, is there a REST message size limit that can be changed? Or is there something else going on here?

Thank you!

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Hi,

I was understanding the cluster configuration supported by the Cache. Have couple of queries around that:

1. In Cache version 2018.2, there is a shrading concept which splits the data of a Master Data server into multiple small data server which store shraded data.

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Question
· Jan 15, 2018
Headers in HttpRequest

Hi Guys,

I'm using Ensemble 2014 and have a code that Posts HttpRequest to a REST API and working fine, but don't know how to add Header to my request!?

I tried Set Request.SetHeader("Source","Civicview") but it's bringing a Syntax error, any help pls?

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I'm using Caché as an OAuth authorization server and I want to accept the password credentials grant type. I've found that if I make an authorize request, the Caché authorization server requires some URL parameters that shouldn't be required in password grant (redirect_uri, state, scope, and response_type). If I include these parameters, it calls my DirectLogin() method instead of just calling ValidateUser() as I would expect from the docs. I have two questions:

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Hi,

I would like to set the report headerHeight dynamically based on a group records count.

Example:

If GroupA has 5 records then the headerHeight should be 50mm

If GroupA has 3 records then the headerHeight should be 30mm

Could you please advice the best approach to achieve this?

Thank you,

Rui

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