Hey Valentina.
> Now we are using Automation Engine API 12.0.3 build.9313.
> Does this version have a cluster solution?
If you are on 12.0.3, you can either use the old cluster mechanism ("non-stop cluster") if you have a license. It was only made defunct with 12.2.2 and onward, as far as I know. You should probably note, however, that the "non-stop" failover didn't work all that great, sometimes takes up to a minute or two to switch servers, and this contributed to the decision to retire it from 12.2.2 onwards.
Or you can use an active-active setup (both servers running CP and WP processes, but only one running the PWP Primary Worker Process). Running active-active has always been an option even with 12.0.3 and prior - if you have the license for it.
If you don't have either license, you'd need to talk to your sales people and I strongly suspect they will not sell any "non-stop" licenses anymore. They will, however, probably happily sell active-active licenses to be used with any Automic release.
> Where can I find documentation on clusters, upgrade and recommendations from the vendor?
There is this:
https://docs.automic.com/documentation/webhelp/english/AA/12.3/DOCU/12.3/Automic%20Automation%20Guides/help.htmbut I can find barely anything on clustering. You can look at the sizing guidelines and the "cluster" chapter of the installation guidelines, but it's very little. That part of the documentation historically sucks. My best advise is to either talk to Sales or Account Management people. Maybe they have some white papers or some better information. Or, size your servers according to the above link, then clustering simply consists of setting up multiple servers and putting them into the same naming realm (as per the ini file). Start all processes on all servers, observe only one server will take the PWP role, done.
For clustering the interface ("AWI"), you'd be relying on third party best practices anyway (i.e. load balancer), and dito for clustering the DB (Oracle or mssql native clustering mechanisms).
Hth,
Carsten
Original Message:
Sent: 10-22-2019 05:50 AM
From: Valentina Lisova
Subject: Atomic Engine: System fault tolerance
Now we are using Automation Engine API 12.0.3 build.9313.
Does this version have a cluster solution?
How do you think you need to upgrade to version 12.3?
Where can I find documentation on clusters, upgrade and recommendations from the vendor?
Original Message:
Sent: 10-22-2019 04:56 AM
From: Carsten Schmitz
Subject: Atomic Engine: System fault tolerance
"Passive", or "non stop Servers" have been discontinued and all such former license now allow for "active-active" usage. David Ainsworth has said that much at FOKUS conference in front of about 150 people and at various other occasions.
We have also had this confirmed in writing. In case no. 1329429, Broadcom wrote to us:
"Broadcom accepts the fact that due to the removal of the licensing module in 12.2.2. and higher, non-stop clusters can now be used as full clusters."
If in doubt, contact your key account manager and get such statement in writing. But due to the public nature of the statements, any claim to the contrary wouldn't have a leg to stand on, in my humble opinion.
Disclaimer: I am not a lawyer, I sometimes just pretend to be one.
Br,
Carsten
Original Message:
Sent: 10-21-2019 03:27 PM
From: Siegfried Gyuricsko
Subject: Atomic Engine: System fault tolerance
Yes, a non-stop instance was in fact a passive one. And your question concerning licensing is exactly the point. I have advised every customer who has this old-style license to get in contact with Automic sales.