I try going to http://www.globalsdb.org  not much help there. I'm wanting to use this for a personal project of mine,  if needed i can go to GT.M I just haven't used a linux machine in quite some time and i was hoping to hit the ground running. Any help is appreciated. 

Hello!

In Caché there is a way to print all current variables using write command without arguments:

But is there a way to get a list of this variables? I am looking for something that would return value like $LB("Einstein", "Mozart") for this case.

Thanks!

I want to show my script which I use for a completion in bash, for ccontrol and csession. 

With this script bash helps to available (running or down) instances to ccontrol, or in csession

file
/usr/share/bash-completion/completions/ccontrol

# bash completions for InterSystems ccontrol

_instances() 
{
    if [ $# == 0 ] || [ $1 == "all" ]; then
        echo $(ccontrol qlist | cut -d'^' -f1 | tr '\n' ' ')
    else 
        echo $(ccontrol qlist | grep "\^$1\," | cut -d'^' -f1 | tr '\n' ' ')
    fi
}

_ccontrol()
{
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"

Hi, after installed Healthshare 2015.2, all the tables previously correctly listed working with Healtshare 2014.1 are NOT listed anymore. TrakCare tables are not listed in the catalogue, nor by the WinSQL Intellisense.

Does anybody know a trick or have a hint to resume this useful functionality back?  

Thanks.

I've created a CSP page to take in a base64 value from a <textarea> and decode it. When I run it I get the error . Any ideas?

Error: <ILLEGAL VALUE>zOnPageBODY+28^csp.decode.1

ErrorNo: 5002

Here is my code

<form method="post" action="">
<table>
<tr><td><textarea rows="40" cols="200" name="submitstring"></textarea></td></tr>
<tr><td><select name="decodeoption"><option>Decode</option><option>Encode</option></select><input type="submit"/></td></tr>
<tr><td>&nbsp;</td></tr>
<tr><td><h2>Result</h2></td></tr>
<tr><td>
<script language=Cache runat=server>
Set tString = $Get(%request.Data("submitstring",1))
Set t

Here's  a code snippet to calculate the length of a class or a package in lines of code:

                "WHERE NOT Name %STARTSWITH '%sqlcq' AND Name LIKE ?

Hi!

Here is the question in Russian Forum regarding roots extracting.

In Caché ObjectScript we use exponentiation operator (**) to raise an exponent to power. F.e. let's raise 3 to power of 3: 

USER> write 3**3 

27

And we use the same operator to extract the root. 

USER> write 27**(1/3) 

2.999999999999999963

And 2.999999999999999963 is not 3, obviously.

How to extract roots properly in Caché ObjectScript?

Long story short, I created some test data, then deleted it. The database (cache.dat) is 67 GB in size (was around 1 GB before tests).

How do I compact that?

I have a MySQL server with "posts" table.

I also have a Caché server with "downloadedposts" table. 

They are connected from Caché to MySQL via SQL Gateway

I want to keep Caché table synced with MySQL one  (MySQL "posts" table is a master copy), so periodically Caché queries MySQL server and downloads data. So far so good, and if a record appears or changes in MySQL table, Caché downloads the changes.

The problem I'm encountering is that sometimes rows would be deleted from  MySQL "posts" table.

How do I synchronize deletions?

Steve Glassman is on vacation today so in his place I wanted to announce the availability of a new kit for the 2016.2 Field Test. The kit details are: 2016.2.0.665.0

There is a wide range of changes to the 2016.2 Field Test, 145 of them in total.  You can find a complete listing here:

https://wrc.intersystems.com/wrc/WRC.StreamServer.cls?FILE=/wrc/FieldTe…

Bill McCormick

Director of Product Management

I am pleased to announce the next 2016.2 field test kit, 2016.2.0.677.0.

I haven’t sent an update to this thread in a while and it should come as no surprise that there has been quite a lot of development going on since I wrote about build 632.  In fact, there have been almost 300 changes covering most areas of the product.

The accumulated list of fixes to problems found in the field since build 632 includes the following changes:

• CDS2713: Access violation dump files produced
• CDS2714: Correct I/O translation of variable length records
• DLP3551: Dynamic Objects - refactor %ToAbstractObject and

Can anybody share a code looking for 'dead' locks?

It's not trivial to find such locks manually when there are many records in lock table.

I am testing application code and want to simulate error conditions. 

I am trying to use the following to define a custom error with a class method.

$SYSTEM.Status.Error($$$GeneralError,"Any text here")

My class method code looks like this....

set RunStatus=$System.Status.Error($$$GeneralError,"DXL Testing Run Error")

Class compile fails because the $$$GeneralError is unknown. 

ERROR: DBMS.Reports.TaskPage.1(5) : MPP5610 : Referenced macro not defined: 'GeneralError'
 TEXT: set RunStatus=$System.Status.Error($$$GeneralError,"DXL Testing Run Error")
 

I expect I need to include something to enable

InterSystems is pleased to announce that Caché and Ensemble 2016.1.1 are now available on all supported platforms.

This followup announcement adds all the OpenVMS versions that were excluded in the announcement last week.

In this article I'll describe how to set up web services and/or REST services using EWD 3.

Since EWD 3 is designed to be modular, you can construct the environment that exactly meets your needs, but for much of the time you'll probably find that the pre-built EWD 3 ewd-xpress super-module does most of what you need because it hooks together all the core EWD 3 and other building-blocks you'll need:

• the Node.js web server that pretty much everyone now uses: Express
• Caché (via the ewd-qoper8-cache module, which, in turn, relies on the cache.node interface file)
• ewd-qoper8 - the master/worker

As Rob explained in an earlier post, Caché's Node.js interface allows you to create Web Services and REST Services using the very modular EWD 3 framework.

These services by default return a JSON response with Content-Type: application/json and the response body contains the JSON you return using the finished() method, so:

finished({ test: 'test response' });

returns

{ "test": "test response" }

with a HTTP content-type of application/json

For other external services and tools like e.g.

Recently I have been posting some updates to our JSON capabilities and I am very glad that so many of you provided feedback. Today I would like to focus on another facet: Producing JSON with a SQL query.

Hi -

I'm trying to rewind a cursor back to the first row after looping part of the way through the implied result set, but I'm not finding a way to make this happen, is there some such iterator variable or directive that I can leverage to accomplish this?

I could code around it by pulling identifiers and/or values into a local array, and then hand code up an iterator over my local results copy, but this feels like a "redesigning of a wheel" approach, and I thought I would check before I start down this path.

Thanks

I can see mention of it online - http://www.intersystems.com/our-products/cache/tech-guide/chapter-3/ - but nothing in the docs on how to implement. Does anyone have any experience with this? We've managed to implement Hibernate and JDBC connections to Cache DBs fine (these are documented!).

Thanks very much :)

Customer is using an ancient MSM based client Workstation for their application and they made a small change to their server code. They introduced property of %Double() and discovered an issue. The MSM workstation is not able to retrieve any property of an object instance that holds value of $double(0). see images illustrating the issue.

I'm posting this to DC intentionally before I eventually send it to WRC so others can comment.

Dan

Image 1 - data

image 2 - UI

During recent large scale benchmarking activities, we were seeing excessive %sys CPU time that negatively impacted scaling of the application.

Problem

We have found that a lot of the time was spent in the localtime() system call due to the TZ environment variable not being set.  A simple test routine was created to confirm the observation, and the elapse time differences and CPU resources needed with TZ set versus TZ not set were astonishing.  It was discovered that the inherit use of stat() system calls to /etc/local_time from localtime() are very expensive when TZ is not set.

Recommendation

Inte

Let assume you have a infinitely scaling algorithm implemented in your application, using replication, ECP, or any other means of horizontal scaling, and let assume you know how to run your system under any volume of requests, the trick is to deploy required number of computing nodes in the cluster. If we are talking about cluster of 2-4 nodes your administrator (or as they call it today "devops engineer") will install anything manually. Probably he will easily handle 5 nodes configuration in the cluster. But what if you need to deploy 10, 100, or 200 properly configured, interconnected nodes?

InterSystems is pleased to announce that Caché and Ensemble 2016.1.1 are now available as maintenance releases.

For a complete list of the corrections in 2016.1.1, please review the release notes.

Caché and Ensemble 2016.1.1 are available now for the same platforms as 2016.1.0, with the following exceptions:

• OpenVMS is not available yet.  It will be announced separately.

• Support for Red Hat Enterprise Linux 7 for Power System-64 is now dropped. 

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

The build

Hello WRC.

Is possible to obtain a node-cache modul for the nodeJS ver.4.4.4. and actual Caché 2015... ?

And what is the expected outlook of this.

A note about this new portal: If I put into "search box" some text with dot like .js or .css ( for example: test.js )  , I obtaint error page. Try it.

Of course, this "Developer Community" is nice, the right way.

Nice day for all, Jan Krestyn

Hello,

I have a question about how to set the value of a radioSet.  Yes, I know -- the documentation says that setValue can be used "client side", but gives no example.  Plus, I'm trying to set the value of a radioSet in %onAfterCreatePage, which is a Zen method? Server side method? I'm not sure.

In my Zen page I create a radioSet like this:

<radioSet id="appRadio" name="appRadio" 
displayList="App One,App Two,App Three" 
valueList="One,Two,Three"/>

I want to select a radio based on a sepcific value, that I get from code.

e.g.

Method %OnAfterCreatePage() as %Status

set value =

Setting the TZ Environment Variable on Linux

The Update Checklist for v2015.1 recommends setting the TZ environment variable on Linux platforms and points to the manpage for tzset. This is recommended to improve the performance of Cache’s time-related functions. You can find out more about this here:

https://community.intersystems.com/post/linux-tz-environment-variable-not-being-set-and-impact-caché

The manpage on my CentOS 7 test system (RHEL 6 says the same) has this to say:

“The tzset() function initializes the tzname variable from the TZ  environment  variable.

Hello,

I am still a beginner with COS and am struggling with these concepts. While digging through the official documentation will eventually tell you everything you need to know, getting started is nevertheless not an easy feat...

Is it possible to create a "lists/array/multidimensional 101" page for beginners? And, for instance, its interaction with $data, what it means to use "as list of something" or "as array of something", how to walk lists, how to add/remove elements, how to extract sublists etc?

At this moment, for me, this is all very confusing, and I think such a page would help me

I am hoping some of you network guys have ideas. InterSystems seems to be at a standstill. When I startup Studio and try to start Terminal I get License Limit Exceeded. Starting with Terminal and going to Studio, same thing. It started when I put down a 2016 version of Cache on top of a 2015. InterSystems told me to uninstall everything and start fresh. I did that but have the same problems. What can I look at? How do I start to debug this? Although I am the only one on my PC it is really impacting my performance.

-thank you

Updated  DEV server from account 2013.x to  2015.2 (Build 664_3U) of Ensemble 
 

Platform : UNIX (Red Hat Enterprise Linux for x86-64)

When trying to start the JDBC gateway server got the following message
*****************************************************************************
Type: Error
Text:   Execution returned: Exception in thread "main" java.lang.UnsupportedClassVersionError: com/intersys/gateway/JavaGateway : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.

Hi All,

I've created a sample implementation of the MQTT protocol, which is now available on GitHub. 

The project demonstrates MQTT client capabilities and it's written in Caché Object Script.

Any comments, bug reports are welcome! Some more enhancements (like SSL / TLS support) are planned for the near future.