On 21/4/22 06:00, Robert Garrett wrote:
I've dabbled with it some, enough to bring up an instance and get a couple of containers running under it, a REDIS database instance for example.
I ported Redis to z/OS many years ago. I updated it to v5 a couple of years back. I handed it over to our Zowe devs as they were considering using it for a caching layer. It's on Github https://github.com/lchudinov/redis
It likes a LOT of real memory and it appears that the running instance consumes the full amount of real memory allocated to it for the duration, making it unavailable to zOS for paging or any other use. Don't believe the claim that it can run in as little as 2GB. The experimental test instance that I built had 3GB allocated to it (the most I could give it on the LPAR I was using) and it took a full 15 minutes (yes minutes) by the clock for the address space to initialize and reach the point where it was functional - on every start up. Admittedly, this was on a zOS image that was being hosted under zVM at IBM Dallas, so I'm sure that had some impact. The tooling for provisioning it leaves a lot to be desired, at least it did a year ago when I worked through it all. Everything about building a zCX instance requires using tooling in zOSMF, and the zOSMF server itself requires just about every optional service available there is to be configured and available. I also found that using the tooling to make configuration changes to a previously built but running instance mostly doesn't work. In my experience, I got much better results by instead wiping out the whole image and rebuilding it from scratch any time I needed to make a configuration change, even a seemingly minor one. I did write a fairly detailed 'experience' document about everything, but I was doing so as part of a project for a client at the time so I'm not free to publish or share it without their permission. Cheers, Robert Garrett Garrett Family Enterprises [email protected] IBM Gold Consultant - 2022 -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Matt Hogstrom Sent: Wednesday, April 20, 2022 2:56 PM To: [email protected] Subject: Use of zCX As an ISV are interested in leveraging containers for delivery of services into zCX … I’m curious if 1. You have zCX installed, or plan to? 2 If so, are you looking to use IBM’s recently announced OpenShift or another orchestrator? It’s always nice to know if you’re delivering content that there is a healthy ecosystem to use it. If you would like to share but don’t want to on the list you can DM me. Appreciate your thoughts and insight. Matt Hogstrom [email protected] Frodo: “I wish the ring had never come to me. I wish none of this had happened.” Gandalf: “So do all who live to see such things. But it is not for them to decide. All you have to do is decide what to do with this time that is given to you.” ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
