555
InterSystems Caché is a multi-model DBMS and application server. See more details here.
One of the internal changes in Cache 2016.2 is the switch from using Posix asynchronous IO on Linux platforms to native kernel asynchronous IO for improved performance. There is a kernel parameter that controls the maximum number of events that can be handled across the entire system and it is possible to hit this limit on newer versions of the Linux kernel when Cache is setting up disk IO structures in the WD or user processes. To prevent this from occurring we recommend that the kernel parameter
For those who are interested, or want to do something different with the cache language, I leave here two codes of animations.
They serve to run on the terminal while executing a routine, or a method.
To escape the monotony of seeing that static code in the terminal.
This article is about how to gain as much transparency in controlling processes in ECP environment as in traditional (non ECP) one.
The technology of load balancing between several servers with relatively low capacity has been a standard feature of Caché for quite a while. It is based on the distributed cache technology called ECP (Enterprise Cache Protocol); note that we are referring to “cache”, not “Caché”, here. ECP provides a host of possibilities for horizontal scaling of an application, ensuring high performance and fault-tolerance, and yet keeping the project budget fairly low. Another apparent advantage of ECP network is the possibility to conceal its architecture in the depths of Caché configuration so that applications developed for the traditional (vertical) architecture can be fairly easily migrated to a horizontal ECP environment. The ease of this process is so mesmerizing, that you start wishing it was always this way. For instance, everybody is used to having a possibility to control Caché processes: the $Job system variable and associated classes/functions work magic in skilful hands. Stop, but now processes can end up being on different Caché servers… The text below is about how I managed to cope with this problem.
Hello,
Our Intersystems Cache database is running in a Windows 2008 R2, and is installed and configured as "UNICODE" .
We are using Apache+PHP with ODBC to get data but we have some problems with character encoding.
We also have two configurations:
- Ubuntu 16.04 LTS + Apache2 + PHP 5.6 + UnixODBC
- using isql command everything works fine, data returned is OK (all special characters in Spanish displayed ok).
- using PHP with PDO function to connect the database and libcacheodbcu35.so driver
- with default_charset="" in php.ini
- Special characters in spanish not displaying ( like ü , é , ó , à , .
Hi all,
i need one help regrading telnet.In cache 5.02 while we take telnet it open some program(By using ^login Global in %Sys nameSpace).But i could not create same process in cache 2016.
example:
telnet 127.0.0.1 it open some routine in "TRAIN" namespace.
Thanks,
Sansa.
Hi all,
Is there any possibilities to set the null password for user account in cache 2016?
Thanks,
sansa.
In our last lesson, we added a form to Edit our existing Widgets, and save them back to the server. However, our Form was not well strcutured and our Save button had no intelligence, and was not fully visible. So today, we will apply some Material components and Angular style to make the form more useful
Let's open EditWidget.csp, and make some changes. First, we want to change the component from an md-card to an md-dialog.
Let us check whether this is available to others
DraftDraftDraftDraftDraftDraftDraftDraftDraftDraft
NewNewNewNewNewNewNewNewNewNewNew
NewBie's Corner Session 14 Inline Do & Nested Do with Implied Quit and For Loop
Welcome to NewBie's Corner, a weekly or biweekly post covering basic Caché Material.
InterSystems Caché provides a GUI (Graphical User Interface) based Integrated Development Environment (IDE) called Caché Studio. Developers can use Studio to create and maintain applications.
The following concepts of Inline Do, Nested Do, Implied Quit and For Loop is difficult to explain in a manner that everyone understands. However, these concepts work well with each other.
This code snippet uses GZIP to compress and decompress a file in the file system. Change default file paths to customize code to compress/decompress your files:
Class objectscript.GZIP Extends %RegisteredObject
{
classmethod test() {
//Export Global(s) uncompressed
set filename="C:\Temp\myglobal.xml"
do $System.OBJ.Export("^oddEXTR.gbl",filename)
//Open exported Globals
set uncompressed = ##class(%FileBinaryStream).%New()
set uncompressed.Filename=filename
Set compressed = "C:\temp\mycomglobal.xml"
//Open File Device over Gzip and Copy Uncompressed information to it
Open compressed:("WUNK":::/GZIP=1:/NOXY=1:/OBUFSIZE=32768):0
Use compressed
do uncompressed.OutputToDevice()
close compressed
//Create New File
set out = ##class(%FileBinaryStream).%New()
set out.Filename= "C:\Temp\decomp.xml"
//Open compressed File and save information uncompressed over gzip
Set file=##class(%File).%New(compressed)
Do file.Open("RUK:::/GZIP=1:/NOXY=1")
while ' file.AtEnd
{
set line = file.ReadLine()
do out.Write(line)
}
do out.%Save()
}
}
GitHub: https://github.com/intersystems-community/code-snippets/blob/master/src/cls/objectscript/GZIP.cls
Hi All, I am taking a namespace and routines from one table for particular user.if the user have name space and routine means it execute well but after executed the routine it is automatically quit and close the session.I need to keep the same namespace after executing the routine. Please help to proceed further anyone.
Hi All, I configured the crystal report SAP 2011 with IIS 10 in windows server 2012 r2 standard,when I tried to open it shows failed to open the connection error .database is Cache.how to recover that problem.
Hello everyone,
I have the following problem in generating a PDF report in ZEN, which has many items, a general total of approximately 30,000 items, but gives an error, I can generate a report with a maximum of 8,000 items, which may be wrong.
==========
Currently we have a setup where we have an external IIS webserver that our CSP Gateway sits on that routes requests to our ensemble server. When working with soap everything was routed to the CSPms module since the site's handler mappings have *.cls going to this module. However, now that we are working with rest services that don't have a file extension we will have to have all traffic on the IIS box be routed through the CSPms module.
I was curious if anyone has encountered this type of issue, and if so, what steps did they take to resolve it?
TEst test
Configuring Java with InterSystems Technology
Regardless of what InterSystems technology you use to design your applications, it is likely that some of our product functionality will require that Java be installed on the operating system, and subsequently be configured properly with your InterSystems based application. There are many ways that this can be accomplished depending on your operating system, as well as the specific InterSystems technology you are integrating with.
-
What is this talk? • Provocative • Conflicting • Irritating • For those who want to be professional • Driver
-
What is this talk not? • Silver bullet • Only for devs Java • Only for devs • To be forgotten
-
Debt technical or "how to prevent the conductor knock on your door" - Alexandre Freire https://www.infoq.com/br/presentations/divida-tecnica- need-credit
-
Developers do not know fundamentals!
-
bitly.com/resultadopesquisafusca bitly.com/pesquisafusca
-
Developers do not know how to make simple software!
As you know, Caché can be used as a relational DBMS working with JDBC/ODBC drivers and supporting the execution of arbitrary SQL queries and SQL procedure calls.
We also know that Caché stores all the data in multi-dimensional sparse arrays called globals. It allows the developer not to use the standard CachéSQL engine in case a particular SQL procedure is underperforming, but instead rewrite its execution code in the Caché ObjectScript (COS) language intended for server-side business logic. This approach may help implement the optimal SQL procedure execution algorithm by using better-optimized NoSQL data structures (globals).
However, the standard class library in Caché has one limitation: for SQL procedures where data selection is controlled by custom COS code, you need to define the set of returned fields at the compilation stage - i.e. it is impossible to dynamically define metadata for an SQL procedure working with NoSQL structures. This article is about how to get around that limitation.
Hi,
I would like to list out unchecked mapped items ( classes in management portal ) classes of a particular namespace. Is there any code or terminal command which i can use ?
I am able to list out classes of namespace . But I need to list out unchecked mapped items classes
do ##class(%SYSTEM.OBJ).GetClassList(.result)
AI can be categorized in any number of ways, but here are two examples.
The first classifies AI systems as either weak AI or strong AI. Weak AI, also known as narrow AI, is an AI system that is designed and trained for a particular task. Virtual personal assistants, such as Apple's Siri, are a form of weak AI.
Strong AI, also known as artificial general intelligence, is an AI system with generalized human cognitive abilities so that when presented with an unfamiliar task, it has enough intelligence to find a solution.