#System Administration

Container Images

In this second post on containers fundamentals, we take a look at what container images are.

What is a container image?

A container image is merely a binary representation of a container.

A running container or simply a container is the runtime state of the related container image.

Please see the first post that explains what a container is.

Containers

With the launch of InterSystems IRIS Data Platform, we provide our product even in a Docker container. But what is a container?

The fundamental container definition is that of a sandbox for a process.

Containers are software-defined packages that have some similarities to virtual machines (VM) like for example they can be executed.

Containers provide isolation without a full OS emulation. Containers are therefore much lighter than a VM.

We have noticed in the course of the last 18 days our CACHE.dat has grown by 20 GB. Is there a way we can break down the data in CACHE.dat to see what could be growing in size?

Let me state it another way.....Is there a way to see what space an Operation/Service/Process is taking up within a certain Production?

Thanks

Scott Roth

The Ohio State University Wexner Medical Center

I am setting up a new Caché instance and I have managed to configure it where Caché username/password is required to initiate the Caché session:

csdfalsdkfjf@fra23e234sco:/opt/labmed/test/test81/proc$ csession cache1

Node: frxxco, Instance: CACHE1

Username:

I cannot find the setting in the management console that allows for unauthenticated login to a Caché session. Any help is much appreciated.

Hi, all!
As I know, InterSystems recommends the use of Huge Pages. And if count of Huge Pages is enough, we'll see (in cconsole.log) something like this during Cache startup:

But if count of Huge Pages is not enough for location of all Globals and Routines caches, Cache won't use Huge Pages.