#InterSystems IRIS

Hi All,

 Excluding RHEL which linux distro are used to be choice for a production cluster environment.

Regards

PEX Java classes are not in the maven public repository, so I need to download pex jar file. Where is PEX jar file can be found to download?

In the default IRISterminal or using PuTTY I have a set of "Routine Commands" available 

How InterSystems solutions handle C10k connections? ( https://en.wikipedia.org/wiki/C10k_problem )
For example, I want to create a social network on InterSystems platform.
In the scenario client (browser) => CSP Gateway => Cache can the Cache handle a large number of clients at the same time?
Quick analysis shows that CSP Gateway for each request opens a new TCP connection to Cache SuperServer (port 1972) allocating CSP session and license slot.

Hi.

Is it possible to convert the object of type %SerialObject to $List form? I'm using embedded class in unique index and I want to use autogenerated method Open to  access the object - parameter should be in $List form...

Tnx.

Regards,

Matjaž

After attending the Intersystems DACH conference in Germany at the end of last November and taking part in a few workshops about containers and microservices I took the plunge and installed Docker on home Windows PC, downloaded IRIS 2018.2 preview and got that up and running. Good stuff and I gave myself a pad on the shoulder at that point.

I want to assign below query result into my Person class which have Name,DOB properties, and then  convert into JSON.

SELECT Name,DOB FROM Sample.Person

Hi community,

I need to write an SQL query  to fetch a random record from a table, that table has millions of data.

In postgresql, for example, there is a RANDOM() function to do something like that:

SELECT column FROM table
ORDER BY RANDOM()
LIMIT 1

Is it possible to do something like that in Caché?

Thanks in advance

Hello there community, 

As I am interested in taking part in the  Full Stack Development for IRIS, I tried to download the Software and get hands on experience with it. 

The registration went well, but unfortunately I only got a mail with regard to the download but the Software did not get downloaded. 

I need the help of you experts please. 

Am I doing something wrong or did I just miss some thing or some steps in between these that needs to be fulfilled? 

Hi Community,

for our forms validation we use XData to describe fields on server side.

These XData are in JSON like this

XData FormValidator [ MimeType = application/json ]
{
 {
  "username": {
   "required": true 
  },
  "email": {
   "datatype": "email"
  }
 }
}

When I try to use %JSON.Adaptor in same classes, IRIS throw an error at compile time

Hello,

I'm using the InterSystems Iris odbc driver (DriverODBCVer=02.10) to get data from Iris table but it is slow.

Is there any options to improve performance ? Increase the packet size ?

Change to do in odbcinst.ini / odbc.ini to make it quicker ?

Thanks

Hi all

I've been looking into how to convert some images with IRIS and saw some recommendations on the forums around using image magick.

However I can't seem to get this working using ZF100 and on windows server and I'm wondering if I'm missing something really obvious as I've not used IRIS to call third party applications before.

If I run via a Windows CLI on the server, it works fine, e.g:

magick "D:\1221701739_20190716134351965_1_0.jpg" -resize 640x480 "D:\1221701739_20190716134351965_1_TEST.jpg

I'm trying to write a method that runs an OS command with $zf(-100,"/ASYNC") and then waits for it to finish before returning, but I can't figure out how to check if the child process (in $zchild) is still running. $System.Process.State($zchild) always returns "RUN" even once the child process is gone. Is there some better way to check this, short of running another OS-specific command and processing the output (which is just really annoying and unelegant)?

Hi,

On a persistent class, I have defined an %OnNew method that validate some properties with appropriate status code for each kind of error.
Question is: how do you catch the specific error when %New is called on this class?

Surrounding %New method with a try-catch not seems to work.

Thanks