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#Caché

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

Documentation.

We are updating from 2015.1.1 to 2017.2. I am testing the Hot JVM functionality to see if our current functionality is working in the new version of 2017.

I am having a problem trying to make it "fail".

Generally if I put in an invalid renderport then I usually get an error. Now if I put in an invalid renderport it generates the PDF anyway (FOP).

Was there a change where if it fails using the renderserver then it will create a new instance of Java to produce the PDF?

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Hello All,

I hope it's not a silly question.

Here is my issue:
I have 3 simple classes:

Parent class, let's say:

Class ParentClass Extends %RegisteredObject
{
Property a As %String;
}

and two children classes
Class A.Child Extends ParentClass
{
Property b As %String;
}

Class B.Child Extends ParentClass
{
Property c As %String;
}

So no issues - all compiles and seem to work.

But, when I add %XML.Adaptor to my parent class, so:

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Question
· Jun 14, 2018
AddEventListener for a control

Is there a way to add event listener for a zen control?

I have a custom text control and I want to add 'change' event listener for it.

Is it possible to do not using 'onchange' property?

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++ Update: August 1, 2018

The use of the InterSystems Virtual IP (VIP) address built-in to Caché database mirroring has certain limitations. In particular, it can only be used when mirror members reside the same network subnet. When multiple data centers are used, network subnets are not often “stretched” beyond the physical data center due to added network complexity (more detailed discussion here). For similar reasons, Virtual IP is often not usable when the database is hosted in the cloud.

Network traffic management appliances such as load balancers (physical or virtual) can be used to achieve the same level of transparency, presenting a single address to the client applications or devices. The network traffic manager automatically redirects clients to the current mirror primary’s real IP address. The automation is intended to meet the needs of both HA failover and DR promotion following a disaster.

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Time after time on CSP Session page of our Cache 2017.2.1 installation I see that all licenses are consumed by CSP sessions of /csp/sys, /csp/sys/op/and /csp/sys/mgr applications which I assume are sessions of Management Portal. The problem is that there are only few of us accessing the Portal and as we test by browsing Portal, we can't reproduce the problem.

Is there any way to see client IP of CSP session? Any other way to approach the problem?

The problem looks very similar to the Forefox-related one but we don't use Forefox.

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Hi Everyone,

I am trying to built a SSIS package thru BIDS Visual Studio 2013. My Datasource is a InterSystems Cache Database, I wanted to Import Tables records from the Datasource to MS SQL Server 2014.

As a Sanity check. I only created one Package to import one Table to MSSQL Server to try out. The connection to the InterSystems Cache Database was successful. The DSN for the InterSystems Cache Database is created in the System for 32 and 64 Bit.

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Question
· Nov 16, 2017
Caché service does not start

Help, after a day of coding, I wanted to backup my files. I found out that alle of my 3 instances of caché refuse to start.

the error says: cstart-exe-fout (112 Service for Caché instance did not start).

Is there a way to solve this? (off course the management portal does not work either.)

I think there has been a power interruption as the battery from my laptop does not work, and the power went off before

shutdown.

Thanks in advance!

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Article
· Mar 10, 2016 2m read
New Book, Caché and MUMPS – Part II

New Book, Caché and MUMPS – Part II

By Paul Mike Kadow

Edited by Deborah Graham and John J. Mitchell

Go to http://cosmumps.org for a download of just the examples of the book and the table of contents.

From the Forward

InterSystems, from a humble beginning, has grown into a worldwide company with its flagship product, Caché, leading the way.

First, this book chronicles and explores some of the many areas InterSystems has grown into and has influenced over the years.

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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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Hi - has anyone successfully used the python binding on a mac. I carried out the install instructions per InterSystems documentation and it fails completely. 204 warnings and 9 errors. Obviously this was never tested by InterSystems. Is it even worth pursuing?

Thanks

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Question
· Jun 6, 2018
Send PATCH http call

I need to send a PATCH call from the server to a given url.

Until now I was using %Net.HttpRequest to issue calls for get/post/put but today I had to make a PATCH and I can't find a way to do it.

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Article
· Mar 31, 2018 1m read
What Are You Using For Issue Tracking?

Hi, Community!

What is your favorite issue tracking system for projects with InterSystems Data Platform? What did you use and what are you using now?

In projects with InterSystems Data Platform, I worked with Redmine, JIRA, Trello. A lot of code versioning systems now have this feature too (Gitlab, Github).

Now my favorite for small and medium projects is Github, because it is simple, is very close to code (commit-issue linkage) and it has kanban).

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Hi Guys,

have a file located in \\servername\Myfiles\pull.csv but for some reason my cache routine can't file, but can when using the local drive C:\servername\Myfiles\pull.csv.

FYI I can access \\servername\Myfiles\pull.csv via Win explorer with no problems.

anyway how I can fix this?

Thanks Guys

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Question
· Jun 5, 2018
$CASE For Long Stories

Hi, Community!

$CASE is a fine syntax sugar for "Ifs" with one-line/one-word expressions, like in docs:

SET daynum=$ZDATE($HOROLOG,10)
  WRITE $CASE(daynum,
              1:"Monday",2:"Tuesday",3:"Wednesday",
              4:"Thursday",5:"Friday",
              6:"Saturday",0:"Sunday",:"entry error")

But if my expression for a current case is a multi-line business logic? Can I use "{}" somehow or better go with "IF" instead?

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Question
· Jun 5, 2018
Ternary Operators

Hello community, simple question. I've been able to use a ternary operator equivalent by using $select for inline if statements using this pattern:

set x = 1

set result = $select(x = 1: "true", x = 0: "false")

These can be nested and can have a lot of options. But I'm curious if there is a native way of using ternary operators in ObjectScript?

Thank you

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I am working with a client to try and export a set of tasks defined in the Task Manager from one system to another. I am not seeing any API for this. I can query this information in SQL. So I tried to use the Data Export Wizard from the System Management portal in the SQL window. Export was fine. Importing failed with a "can't insert into read only field" error. Looking at the class definition does not help since the implementation details are not visible.

So how would one accomplish this? Export scheduled tasks from one system to another?

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Question
· May 24, 2018
image tab

Good afternoon, I have a tabGroup where I populate tabs with images using the scr property. If a user scrolls to the bottom of the image on a tab, when they go to the next tab, they are also at the bottom. When moving between tabs, I would like the user to always be presented with the top of the tab content. I have not been unsuccessful in doing this. Would someone have input on how to make this happen? Thank you in advance for any and all feedback.

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In old Caché versions it was possible to create a new role based on predefined %Developer by copying it and adding some resources as needed. It was true at least from 2010.1 to 2015.1.

After upgrade from 2015.1.4 to 2017.2.1 it turned that it's only partially true now. User with a "New-Developer" role can enter Studio and open existing cls/mac/etc for editing and everything is OK unless he tries to create something new (Ctrl-N), than he gets a pop-up with %msg: <User xxx does not have enough privilege to execute stored procedure %CSP.StudioTemplateMgr_Templates>

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Question
· Nov 1, 2016
WebSocket proxy to telnet

Is there any easy way to create a WebSocket to Telnet proxy within the Cache environment?

I would like to use a html5 telnet emulator to connect to cache, but need to create a proxy,

Is this a simple task?

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