#Caché

Hi All!!

I am currently recruiting a very exciting position to work for a leading Healthcare software provider who are on the lookout for an experienced InterSytems Cache/Ensemble Developer for a 4 month contract!

This will be working on a leading Childrens Health Product and developing applications for the NHS, particularly working on a migration.

We are looking for:

APM normally focuses on the activity of the application but gathering information about system usage gives you important background information that helps understand and manage the performance of your application so I am including the IRIS History Monitor in this series.

In this article I will briefly describe how you start the IRIS or Caché History Monitor to build a record of the system level activity to go with the application activity and performance information you gather. I will also give examples of SQL to access the information.

Is there a way to estimate compaction / truncation sizes? For a DB when trying to reclaim disk space.

Basically, is there some utility or CLI command that would allow us to estimate if it is worth the effort of compacting a large database or not.

Thanks

I know &SQL returns only one result but is

&SQL(SELECT ID FROM Cinema.Film ORDER BY ID DESC)

and

&SQL(SELECT TOP 1 ID FROM Cinema.Film ORDER BY ID DESC)

the same in terms of processing required?

Hello,

lets have two abstract %Persistent classes A,B with NoExtent keyword (storing data in separate globals for each subclass).

Class A Extends %Persistent [Abstract, NoExtent]

{

}

Class B Extends %Persistent [Abstract, NoExtent]

{

Property Aref As A;

}

Let B class reference the A class. Since the A class has no extent the reference wont work in subclasses. It wont be even usable in SQL. Is it possible to solve this problem? Whats the recommended way to deal with references/relationships using NoExtent?

getting "The value of the property 'cspHttpServerMethod' is null or undefined, not a Function object" error while executing the csp page. All the server side methods stop working at this time although javascript functions still work but until the point where a server side method is getting called. Any clues why we get such error.

This week I am going to look at CPU, one of the primary hardware food groups :) A customer asked me to advise on the following scenario; Their production servers are approaching end of life and its time for a hardware refresh. They are also thinking of consolidating servers by virtualising and want to right-size capacity either bare-metal or virtualized. Today we will look at CPU, in later posts I will explain the approach for right-sizing other key food groups - memory and IO.

So the questions are:

When i use ##class(%SQL.Statement).%New() -> .%Execute() and then .%Next() to go through the result set, i could only go through part of the result. And then, i have to call

Good afternoon,

I'm trying to convert to JSON, but the error <STRINGSTACK> is displayed when I run the command below:

Do ObjJson.Write(ObjSource.%ToJSON())

Does anyone know how I can solve?

Thanks,

Josnei

Hello friends,

I am trying to create REST API in Cache. I am getting a response from postman but when I tried to launch the same URL on the browser, I am getting service unavailable error.

This is my URL
http://localhost:57772/widgetsdirect/rest/Gunwant

Any help is greatly appreciated.

Thanks and Regards,
Gunwant Kapade

Environment:
cache version : Cache for Windows (*86-64) 2015.1 (Build 429).

Platform:
Windows Server 2008 R2 Standard.

database:
oracle in OraClient12Home1 (64-bit).

Hi guys,

Environment:
Cache for Windows (x86-64) 2017.2.1 (Build 801U) Wed Dec 6 2017 09:07:51 EST
Platform:
Windows Server 2016
We have mapped 6 Databases for Shadowing to shadow/backup server with same kind of environment and platform.
The process for shadowing is growing or keeps on running in back round, not sure whether it will die or not - refer screenshot

We want to know how many process does cache instance will take for one database shadowing

This post is dedicated to the task of monitoring a Caché instance using SNMP. Some users of Caché are probably doing it already in some way or another. Monitoring via SNMP has been supported by the standard Caché package for a long time now, but not all the necessary parameters are available “out of the box”. For example, it would be nice to monitor the number of CSP sessions, get detailed information about the use of the license, particular KPI’s of the system being used and such. After reading this article, you will know how to add your parameters to Caché monitoring using SNMP.

InterSystems has corrected a defect that could lead to invalid backups on Windows platforms. The defect causes upgrades to disable the EnableVSSBackup setting. By default, EnableVSSBackup is enabled (value set to 1) and the upgrade sets its value to 0. Windows VSS backups taken with this setting disabled may contain invalid CACHE.DAT files.

This problem is limited to Windows platforms on the following versions:

• Caché and Ensemble 2018.1.0, 2018.1.1, and 2018.1.2
• HealthShare Health Connect (HSAP) 15.032 on Core versions 2018.1.0, 2018.1.1, and 2018.1.2
• HealthShare 2019.1 (Unified Care Record, Patient Index, Health Insight, Personal Community, and Provider Directory) on Core version 2018.1.2
• HealthShare 2018.1 (Information Exchange, Patient Index, Health Insight, and Personal Community) on Core versions 2018.1.1 or 2018.1.0

The defect only occurs if you are upgrading to a version listed above. Once you have upgraded to an affected version, you must manually enable the setting; otherwise, it will be disabled on future upgrades, even when upgrading to versions containing the correction.

For customers using Windows VSS backups, InterSystems recommends enabling this setting on any 2018.1 instances of Caché or Ensemble. Once you have enabled the setting, future upgrades (including to affected versions) will preserve its value.