#Caché

Presenter: Murray Oldfield
Task: Avoid bottlenecks caused by scaling up, before they become a problem
Approach: Discuss what operating system and InterSystems metrics you should look at and how to interpret them
 

Systems behave differently when database activity scales up. In the worst case, bottlenecks appear and users are impacted. This session shows you which operating system and InterSystems metrics you should be looking at and how to interpret them so you can head off bottlenecks before they impact users. This sessions also shows strategies for planning infrastructure taking into consideration InterSystems' data platforms requirements.

Content related to this session, including slides, video and additional learning content can be found here.

Presenter: Murray Oldfield
Task: Deploy applications based on InterSystems’ technology using VMware.
Approach: Provide a checklist of factors to consider, particularly when deploying a production database application that requires high availability
 

Are you ready to deploy your applications on a virtualized architecture? This talk will highlight what you need to plan and do when deploying applications built on ISC data platforms using VMware. Special focus on what you need to know when planning for highly available (HA) production database applications.

Content related to this session, including slides, video and additional learning content can be found here.

Hello all,

I know it is perhaps too vague question, but anyway:

Do you have experience from running a thick (preferably .NET) application in any of these modes - client installed locally, Terminal Server, Citrix ? Say, there are around 300-400 concurrent users using application.

Can you share your observations / opinions?

Thank you!
 

Dan Kutac 

Calling All Caché and Ensemble Customers!!

Would you be interested in sharing your experience working with InterSystems' products?  We want to hear your use cases and best Caché and/or Ensemble stories!   

Let us know by completing this survey from TechValidate  -->  Link

Check out the published stories so far -->Published Stories Link

We will post the results after Global Summit!

Julie

Julie Lockner

Global Data Platform and Partner Programs

Survey Link --> https://www.techvalidate.com/registration/4743ec5dd8

Published Research --> https://www.

I am pleased to announce that Caché and Ensemble 2015.2.3 are now available as maintenance releases.
For a complete list of the corrections in 2015.2.3, please review the release notes.

Caché and Ensemble 2015.2.3 are available now for the same platforms as 2015.2.2

The complete set of supported platforms, including specific point releases and/or patches, is detailed in the Supported Platforms document.

The build corresponding to this release is 2015.2.3.855.0

Hi all,

I've been looking for a way to extract the sorting  from the  ^CacheTemp.zenData global that contain the tablePane snapshot data in order to use it on a report following the current UI sorting criteria.

I could see that if the column is sorted by one column, new entries with this structure are created:

^CacheTemp.zenData(<sessionId>,<snapShotId>,<tablePaneId>,"index",<columnId>,<value>,<dataId>)=""

These are created the first time that the sort criteria is applied (asc) and has the same amount of entries as the data being displayed.

Hi!

Does anyone have an example of subj?

I know there is google service for it. Anyone uses it in production? What is the feedback?

In case of positive feedback would you please post the code example?

TIA!

Learn about tools available in DeepSee; including dashboards, the Analyzer and the Artchitect.

Hi

I have been experimenting with the creation of a set of REST services for an app.  The basic GET operation is set to create a %ZEN.proxyObject instance, and then set an instance of a Persistant class as a property, which gives me all of the values I want to return.  However, it also gives me some values that I don't want to return over REST (because they are both private, and large registered objects which will bog down performance)

How do I remove these values from the ZENproxyObject?

Hello.

For debugging purposes I  sometimes need to display stack information to the current device or save it (to a global for example).

There is this snippet offered in documentation:

ClassMethod StackToDisplay()
{
    For loop = 0:1:$Stack(-1) {
        Write !, "Context level:", loop, ?25, "Context type: ", $Stack(loop)
        Write !, ?5, "Current place: ", $Stack(loop, "PLACE")
        Write !, ?5, "Current source: ", $Stack(loop, "MCODE")
        Write !

The attached file contains two $system.Event examples that processes work asynchronously using persistent queues:

• Events_Simple.prj.xml
• Events_PubSub.prj.xml - updated this example has been published on https://github.com/intersystems-ib/cache-iat-pubsub

Events_Simple

This is a very basic example that creates some worker processes and then enqueue messages to them using $system.Event.

; create shared resource, create worker jobs.
USER>do ##class(IAT.S04.Event.Test).Setup()
 
; enqueue some messages to workers and see what happens
USER>do ##class(IAT.S04.Event.Test).Run()
Show log?

I am pleased to announce the field test of Caché and Ensemble 2016.2 -  an exciting new release with improvements on many different fronts.

The entire product team at InterSystems looks forward to your participation in the field test and feedback over the coming months.

Some of the more profound changes in 2016.2 include:

• Atelier - the new multi-platform IDE for Caché, Ensemble and HealthShare.

Hello! 

We use iKnow's GetSimilar for decision making. Right now we have a domain with both good and bad documents and using GetSimilar we want to see if a document is more similar to the good ones or the bad ones. To do this we simply compare the weighted average of the score from the good ones and the bad ones that GetSimilar returns.  

The problem is that GetSimilar doesn't always return the score to all other documents. Assuming we have 50 documents I would expect the following result:

DO ##class(%iKnow.Queries.SourceAPI).GetSimilar(.

If you are waiting for the Kindle Edition of Caché and MUMPS – Part II, I must apologize. I believed what others told me that once I have a book manuscript, the Kindle manuscript will be easy. Being a programmer I should have remembered: "never assume anything." The conversion to Kindle is proving a much bigger task than I thought. But don't lose heart, I am working full time on it. I have as my goal before May 1^st. But, then again, you know what they say about goals. ;) - - Paul Mike Kadow

Hi Community: I have a legacy Caché based app that has Zlogin or %Zlogin routine. I understand that such routine will be invoked as soon as the user logs in. Can someone tell me where to find such routine? The namespace where the user connects to? Or in CACHESYS? Thanks, HT

I believe the I have followed the instructions to attach a document to the body of a post request but nothing is being sent out in the files{} port of the request.  I can either get the stream in "data", not visible at all, or visible but no form data. Any help would be appreciated, below is what I have:

ClassMethod SendFax(phone As %String, coverpath As %String, docpath As %String) As %String
{
     Set req = ##class(%Net.HttpRequest).%New()
    //test server
    Set req.Server = "httpbin.org"
    Set req.SSLConfiguration = "CardChoice"
    
    Do req.InsertFormData("Username",##class(HData.

At the end of this year support for OpenSSL 1.0.1 will end. InterSystems has started the process to move to OpenSSL 1.0.2 and use the 1/28/2016 release (1.0.2f) for verification and product inclusion. I will update this post once InterSystems  decided which versions will receive  support for OpenSSL 1.0.2.

Stream datatypes are not displayed when you execute SQL (in SMP for example).

Please consider these two concepts:

Concept 1 - Web Service or Web Application or Server Side

Concept 2 - Client Service or Client Application or Client Side

Maybe I am just a Web/Zen newbie, if I am and you all understand this, I apologize. (no nasty remarks please)

The questions are numbered, if you wish to respond to an individual question please precede it by the question number.

1. Is there consistency in naming these concepts?

2. Are CSP, Caché Server Pages used for the Web Server Side only? Or both sides?

Whichever way you want to look at it, their numbers are impressive... growing revenue year-on-year of 69% is amazing... and now they are opening DCs in Canada and India...

http://cloud-computing-today.com/2016/01/29/1074342/

--

Do you use any public cloud? Any private one?

An XML-enabled class has an XMLExport() method that knows how to serialize an instance to XML. To export all instances of a class to a file, I need to instantiate a writer and loop through the extent. Is there no class method like XMLExportToFile() that does this in one go?

I am happy to announce the immediate availability of  Caché and Ensemble 2016.1.

The highlights of 2016.1 are

• Significant improvements in JSON support
• Continued advances in SQL performance
• Database scalability improvements
• New REST services for DeepSee

These and other new features are summarized in this video introduction to 2016.1

For complete technical details of what’s changed in 2016.1, review the Caché release notes and the Ensemble release notes.  

Straight-forward way to do it is well known and looks like this: 
------------------------------------------------------------ sample #1 --------

echo "Try to freeze Cache instance $instance"
rm -f $mydir/db_temp
csession $instance -U%SYS << EOF >/dev/null
zn "%SYS"
set rc=##Class(Backup.General).ExternalFreeze()
set fn="$mydir/db_temp"
o fn:("WNS"):1 if \$t u fn w rc c fn
h
EOF
read rc < db_temp
if [ "$rc" = "1" ]
then
 echo ".

Introduction - Analyzing Textual Big Data

Big Data for Enriching Analytical Capabilities - Big data is revolutionizing the world of business intelligence and analytics. Gartner predicts that big data will drive $232 billion in spending through 2016, Wikibon claims that by 2017 big data revenue will have grown to $47.8 billion, and McKinsey Global Institute indicates that big data has the potential to increase the value of the US health care industry by $300 billion and to increase the industry value of Europe's public sector administration by Ä250 billion.

I have a %Net.Request object and I want to get a full URL of the request sent (preferably after all redirects, but even full initial one would be good). For example, I have the following method:

I want to determine what service (eg. %Service_Console) is used for current process.

I can probably use some workarounds, i.e.

• Is %request object present
• Does $Device  contain |TRM|
• etc

But is there any centralised way to get current service?

Here are a few tips that might be useful to people who are running applications in an environment that's configured to use InterSystems mirroring.

• If you configure an ECP connection to a Caché instance that is a mirror member databases then the ECP connection should also have mirroring enabled (tick the mirroring box when defining the connection). More details here. You may also need to increase the number of ECP connections each end accepts, to cater for the way both members of a mirror pair get involved in ECP negotiation.

Hello everyone,

Is there a required bandwith between client and server for using Studio on a normal basis ?

Thanks

Hi,

posted some weeks ago in the "old" ZEN Google Group, maybe someone here can help to understand how to properly setting up a csp applications and contributing from the build-in caché security mechanism.

I´ve created a webapplication and wan´t to add further security to it using the smp. But... first things first.

I have two Databases let´s say DB1-LOGIN and DB2-Application. Each of this DBs has a resource assigned. DB1-LOGIN has a resource %DB1-LOGIN which has a public permission of 'read'.

Among the outputs of our Yuzinji tool are two code metrics that it can be interesting to track over time as a development project proceeds. These are Size and XS. The first is fairly straightforward. As you write more code the size of your codebase increases. The XS metric (pronounced "excess") aims to quantify excessive structural complexity. XS is explained in some detail in this 2006 whitepaper from Headway Software, whose Structure101 toolset Yuzinji leverages.

By analyzing a codebase using Yuzinji at key milestones we can investigate how these metrics change.