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#Caché

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

Documentation.

Hello, I'm curious to see how other people deal with this: we have a text file that was created on someone's Windows machine and it was copied and pasted into a text file on someone's Mac machine. After some examination we realized that the line feeds were originally CRLF (for Windows) and when copied and pasted they were changed to LF (Mac). The diff program we used didn't pick up on this and the program we wrote to read the file was getting each line of the CRLF file and treating the whole file as one line for the LF file.

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Question
· Apr 11
Delete the reference MEMORY

So as asked, I am not talking about KILL - KILL as stated in the docs:


This command removes the variable. If there are no further references to the object, this command also removes the object from memory,

I want to remove the object from memory even if it is still referenced in memory - I understand that cache is not a low-level programming language, But i was hoping there is a way.

Notice that have a RegisteredObject and it is a single reference, It is different than the UnSwizzles suggested in other posts.

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Hi! I am planning to move my Arbiter from a Unix server to a container(again on linux). To do this, I need the ISCAgent tar.gz file to configure Arbiter for our mirrored servers. I have tried searching for it on the Intersystems help forums but couldn't find it. Is it possible for someone to redirect me to the correct website to download it?

Thank you in advance!!

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Hi everyone.

I have a function that may end up being called from a number of transformations at the same time, and within the function there's some Embedded SQL to first check if a local table has an entry, and then adds the entry if it doesn't exist.

To prevent a race condition where the function is called by two transformations and they both end up attempting to insert the same value, I'm looking to use the table hint "WITH TABLOCK" on the insert, but this seems to be failing the syntax checks within vscode.

Are table hints supported with embedded sql?

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Question
· Sep 13, 2023
Cache: Binary export output

I have an odd binary result exporting a specific routine via Studio, Export. Below is the beginning. The seemingly same routine in a different directory is exported fine, regular human readable code. Inspecting ^ROUTINE and ^rIndex did not give me any clues. Any insights?

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Hi,

I am using embeded python to utilize some pythonic library but i got a problem on my hand.

One of the python function i am using return multiple values

in python you would do something like that :

val1, val2, val3, = function(params)

In COS I got something like that :

lib = ##class(%SYS.Python).Import("lib")
val1 = lib.function(params)

And I don't know how to get the second and third values.
Is there a way to get them?

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We are writing a custom Business Operation to interact with a downstream SOAP web-service. Classes for the SOAP operation were originally generated using the SOAP Wizard, then modified. This is functioning OK, but we'd now like to set the ReplyCodeActions setting on the operation and are struggling to make it visible via the management portal. How can we achieve this?

The classes are structured like this:

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Hi everyone.

Is there a sensible approach to having a lookup table in Namespace A, and then accessing this from Namespaces B, C, D (etc)?

I'm trying to avoid creating a Global mapping of the lookup table global (^Ens.LookupTable) as I fear that it would then link all other lookups in that global and lead to some unexpected behaviour, but would be open to trying something in this realm if it's the best option.

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In cache studio there are features, dialog boxes, that help map data from a global to class properties.
I have used %CacheSQLStorage quit a bit, or have in the past, to map globals to classes.

I haven't been able to find a similar feature in VisualStudio.
Do I need to upgrade to IRIS to be able to use VisualStudio to map global properties to classes?

Thanks for your time,
Richard

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The task for a file on disk is to open it, find a keyword (unique) and then read the file line by line, starting with the line with this keyword, then find the next keyword (also unique) and read from that location etc. I would think ObjectScript classes should be able to do that, but the solution eludes me. I probably need to use FindAt to get a position, but ReadLine does not seem to have a position argument. Any advice?

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The goal is to identify programmatically all SOURCE namespaces on a server to which the routines are mapped. In the example below from the Namespaces page in Management Portal the answer would be USER. But some other namespaces on the same server could be mapped to a different namespace or even mapped to itself.

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I have some databases in my cache instance that were created from an online backup file (.cbk). I would like to see the information for these databases in the Databases and SQL sections of Management Portal, but they only appear in the Classes section. I can navigate to the files in my cache instance terminal and see the CACHE.DAT files, and a check in the terminal shows that they are mounted.

This is what I see in the terminal for each database when I check to see if the databases are mounted:

%SYS>set db="/path/for/mydatabase"

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Hello, I am writing to you because I am receiving a strange error on our Integration server after restoring a Production copy.

On other occasions we had restored the Production copy on this server without problems (in fact it was done weekly)

After restoring the copy when entering the Studio this error appears:

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I am inspecting our DB globals in order to reduce sizes of the worst offenders if possible. When I come to a large global, I am interested which of its nodes are the largest. Hence code below with unexpected different results. Any explanations why are results different?

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Hello Guys,

Our cache application uses REST web services and handles single API request perfectly with response (response status and related data). But sometimes user sends multiple requests to the same API simultaneously ( ie, without waiting for the first to respond ), where one request will succeed (not necessarily the first) and the others will fail.

So, I need to handle the requests one by one after completing and sending the response for first request in the queue then process the next request and so on.

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