#Databases

Hi, we have mirrored databases, now we have three nodes. Primary, backup, async. They are sync by journals and with some TB each node (expensive storage).

I would like to have a scenario where the two nodes (Primary and backup) have the same amount of messages (purge task of x days) , both as failover, but the asynchronous node should have more messaging, as much as the storage allows us. We want to use this node so provider can give support(search old messages), but not have databases in production that are so large that they are hardly consulted.

Any ideas?

In this article, we will cover below topics:

• What is Kubernetes?
• Main Kubernetes (K8s) Components

What is Kubernetes?

Kubernetes is an open-source container orchestration framework developed by Google. In essence, it controls container speed and helps you manage applications consisting of multiple containers. Additionally, it allows you to operate them in different environments, e.g., physical machines, virtual machines, Cloud environments, or even hybrid deployment environments.

In this article, I am demonstrating how to create a table column(formerly known as properties) with your custom datatype classes by using User defined DDL. Properties are the crucial member of the persistent class definition. Datatypes are essential to define types of values that are stored in a table column. In general, the datatype names of SQL different from Intersystems datatypes, such as VARCHAR = %String.

In a typical database, changing the type of a column from some kind of date/time to a string would require a degree of migration effort for existing values. In Caché, my suspicion is that this is not the case, and I could simply change a property definition from %Timestamp to %String (MAXLEN = "30") and recompile, without needing to worry about damaging the existing data stored for this property. Is this correct? Or would I find the existing data in this property being lost or corrupted?

Thanks in anticipation

It sometimes happens that due to an adverse event the AUDIT database (IRISAUDIT) has grown to such proportions that the disk it resides on is full and the daily purge cannot be expected to reclaim disk space.

Hello guys,

I want to move a development IRIS for Health database to another server. I will do this manually for specific reasons. If I simply copy the /mgr folder along with all the files (.DAT, .GBK, etc.) and configure it in the new server, will it work?

Best regards.

Hello everybody. I have a problem a little bit strange. The thing is that there is a Task on Cache that by default is executed everyday at 4:00:00 that, with my settings, will delete all the Audit logs with more than 70 days of existence. The problem is that everyday this task is executed without an error message (status "Success" after the task is finished) but no data is cleaned, the same if I executed this particular task on the "Task Schedule" screen. I'll put here a screenshot of the message after executing the task on the "Task Schedule":

Hi experts

I'm trying to configure an IRIS ODBC connection with "Windows NT authentication using the network login ID". I have created the System DSN as below:

and user (PROD\test) in the SQL Gateway connection

However, as the error message suggests, IRIS is trying to connect with PROD\svc_mist, rather than PROD\test configured above.

Hello everyone,

I searched but didn't find anything. Could you tell me if the IRIS database has any class that natively works with blockchains?

Best Regards,
Flávio

We're excited to announce a new version release of the SQLTools VS Code extension.

SQLTools connects VS Code users to the most commonly used databases using drivers, including InterSystems IRIS. With over 3.5 million downloads, it is helping users work with their data much more easily.