Enterprise Cache Protocol (ECP): a distributed data caching architecture that manages the distribution of data and locks among a heterogeneous network of server systems.
Those of you that worked already with ECP might know that it operates not only across operating systems, processor technologies (big-little-endian), but also -with limits- across versions in C/E. This cross-version feature also includes IRIS (verified for 2020.1) and C/E (2018.3)
Get certified on InterSystems IRIS System Administration!
Hello Community,
After beta testing the new InterSystems IRIS System Administration Specialist exam, the Certification Team of InterSystems Learning Services has performed the necessary calibration and adjustments to release it to our community. It is now ready for purchase and scheduling in the InterSystems certification exam catalog. Potential candidates can review the exam topics and the practice questions to help orient them to exam question approaches and content. Passing the exam allows you to claim an electronic certification badge that can be embedded in social media accounts such as Linkedin.
Join this webinar to make a technical deep dive, see a demonstration, and benchmark horizontal scaling InterSystems FHIR Server on Amazon Web Services with Enterprise Cache Protocol (ECP).
⏱ Date & Time: Thursday, August 18, 8 AM ET | 2:00 PM CEST 👨🏫 Speaker: @Ron Sweeney, Full Stack Architect at Integration Required
For those that, at some point, need to test what means that of ECP for horizontal escalability (computing power and/or users and processes concurrency), but they're lazy o have no much time to build the environment, configure the server nodes, etc..., I've just published in Open Exchange the app/sample OPNEx-ECP Deployment .
Testing ECP-based applications often take quite some effort for setup and preparation. I have created a Docker-based workbench that allows you to have it quick at hands. And if you crash it? You just give your containers a fresh start. The whole setup runs code-based during the start-up of your instance. In that sense, it is also a portable coding example using ZPM and the objectscript-docker-template
I was able to define ECP connection in Installer class that I run when I build docker image for my Docker IRIS application. Now I start to use Amazon ECS and Autoscaling. When a new instance is created and it runs the IRIS container, I want it to "register" as an Application server on the remote database server. What code can I execute to add an ip address as an Application Server?
I work on deploying IRIS inside Docker container. I really like %Installer class can automate many steps. I want to establish an ECP connection to a mirror database and then define a remote database on the application server. I have already seen we can create local database and namespace in %Installer. What code is needed to establish ECP connection?
I have a Read-Only Reporting Async with a Remote Database defined to a non-mirrored database on the primary failover member. I would like to update the non-mirrored database on the primary from the async; so far all my attempts fail with *protect* errors.
I'm interested to hear if folks have experience using Docker containers with Caché instances using ECP. Wondering if there are any special considerations when setting up a distributed application with multiple containers communicating with ECP. Any input is appreciated!
In one of the projects, when we have ECP with 10 ECP application servers, from time to time we faced the issue when our journals fail to purge, due to open transactions. While we have about 100-150 GB journal files per day, it quite quickly became a big issue, and with mirroring a very big issue. Mostly we just rebooted our ECP Data server, so it searches rollbacks any transactions, but such process is too long, may steal a few hours. I did not find any way, how to get the list of the open transactions from one place from ECP Data Server. We just migrated our Data server to 2018.1.
I'm trying to get the ECP status of 2 servers using $system.ECP.GetProperty("ServerStats") and $system.ECP.GetProperty("ClientStats"), but I'm not able to find the documentation of the values returned:
Some readers of my previous article, Caché eXTreme for .NET - direct access to globals from C#, wondered if you could access information not just from the same instance in which you’re working, but also from another instance on the same computer, or from an instance located on another computer in the same local network. Some theorized, correctly, that this would be possible using the Enterprise Cache Protocol (ECP). In this article I’m going to show how it can be done.
Suppose we need to store millions of values temporarily, that means, we don't care about them if we lose them but our application use them to get realtime information. Should I use Cachetemp or whatever other DB without journaling enabled? If answer is Cachetemp, shouldn't be a problem if we decide to scale using App Server + ECP? I'm not sure what would happen with the app logic in such architecture as I guess I couldn't map and share cachetemp...
I have a database with 140 million records containing financial transactions. When I do a query to calculate the sum of those records spanning a number of months it takes around 4 seconds on my database server which seems reasonable. However if I run the same query on an application server it takes around 40 seconds to do the same query.
In just this instance I would like to run that piece of code on the database server instead of the application server. It's a query that is only run a few times a day so I would prefer to have a fast result and don't mind putting a bit more stress on my database server for that.
We have a need to mount remote databases using ECP, but with the Application servers mounting some of the remote databases as Read Only. The Data servers will keep them R+W as normal.
By update
Open Exchange app