+1 for data modeling. If an admin can spend the day helping app teams get the model right BEFORE hitting production, those are the best days (and prevent the bad days of trying to engineer around a bad model/migrate data to new tables/etc)
I also find good value in understanding the availability guarantees of Cassandra and the underlying VMs/hardware for each application. However, app teams do not usually spend the necessary time to understand how to construct their connections to take full advantage of the powerful cluster they have. Learning about the connection policies of the various drivers is important. Then “encourage” the app team to actually test their availability in lower life cycles by simulating various failure scenarios. Then there is monitoring – a beast of a subject… Trying to figure out what is actionable is a life-long journey. 😉 Fortunately, my “How to Become the Lord of the Rings” talk from Cassandra Summit 2019 is not available. You can avoid my ugly mug. Sean Durity From: Patrick McFadin <pmcfa...@gmail.com> Sent: Wednesday, March 17, 2021 9:34 PM To: user@cassandra.apache.org Subject: [EXTERNAL] Re: Cassandra video tutorials for administrators. Hi Justine, Welcome to the community! There is quite an extensive playlist here from an older DataStax Academy course on Cassandra admin: https://www.youtube.com/playlist?list=PL2g2h-wyI4SrHMlHBJVe_or_Ryek2THgQ [youtube.com]<https://urldefense.com/v3/__https:/www.youtube.com/playlist?list=PL2g2h-wyI4SrHMlHBJVe_or_Ryek2THgQ__;!!M-nmYVHPHQ!Y4hNxlUvhogHuTml9mLOFyubScjVzEeV9bplBPj_Hml9usrybcMGsXFQPiisBMCZR4XBy2E$> An exact daily task list type video I haven't seen. In my experience the fundamental things to know for the day to day ops are running repairs and backups. More one off but useful topics are things like adding or removing nodes from the cluster or even restoring a backup. To be helpful with developers using the system, it's good to get a foundation in data modeling. You'll find that a lot of issues come down to just a bad data model and knowing what that looks like can save a lot of time. Here's a playlist for that: https://www.youtube.com/playlist?list=PL2g2h-wyI4SqIigskyJNAeL2vSTJZU_Qp [youtube.com]<https://urldefense.com/v3/__https:/www.youtube.com/playlist?list=PL2g2h-wyI4SqIigskyJNAeL2vSTJZU_Qp__;!!M-nmYVHPHQ!Y4hNxlUvhogHuTml9mLOFyubScjVzEeV9bplBPj_Hml9usrybcMGsXFQPiisBMCZ8siF6Mk$> Please feel free ask questions as the pop up. Patrick On Wed, Mar 17, 2021 at 6:24 PM <justine...@biblicaltext.com<mailto:justine...@biblicaltext.com>> wrote: Hi Elliott, Watching it now, this video is super super helpful, thanks for sharing. I was however thinking more about day to day maintenance issues, maybe that topic is not quite as sexy for a youtube video 😀 Maybe I should make one once I have become a bit more experience under my belt. On Mar 18, 2021, at 6:27 AM, Elliott Sims <elli...@backblaze.com<mailto:elli...@backblaze.com>> wrote: I'm a big fan of this one about LWTs: https://www.youtube.com/watch?v=wcxQM3ZN20c [youtube.com]<https://urldefense.com/v3/__https:/www.youtube.com/watch?v=wcxQM3ZN20c__;!!M-nmYVHPHQ!Y4hNxlUvhogHuTml9mLOFyubScjVzEeV9bplBPj_Hml9usrybcMGsXFQPiisBMCZzqb7Dso$> Not only if you want to understand LWTs, but also to get a better understanding of the sometimes-unintuitive consistency promises made and not made for non-LWT queries. On Tue, Mar 16, 2021 at 11:53 PM <justine...@biblicaltext.com<mailto:justine...@biblicaltext.com>> wrote: I know there is a lot of useful information out there, including on you tube. I am looking for recommendations for good introductory (but detailed) videos created by people who have cassandra cluster management, that outline all the day to day activities someone who is managing a cluster would understand and/or be doing. I believe I have a reasonably good grasp of Cassandra, but I am in that “I don’t know what I don’t know phase” where there might be things that I am unaware I should understand. — Justine So DevOps Engineer https://biblicaltext.com/ [biblicaltext.com]<https://urldefense.com/v3/__https:/biblicaltext.com/__;!!M-nmYVHPHQ!Y4hNxlUvhogHuTml9mLOFyubScjVzEeV9bplBPj_Hml9usrybcMGsXFQPiisBMCZrto2kv0$> ________________________________ The information in this Internet Email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this Email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this Email are subject to the terms and conditions expressed in any applicable governing The Home Depot terms of business or client engagement letter. The Home Depot disclaims all responsibility and liability for the accuracy and content of this attachment and for any damages or losses arising from any inaccuracies, errors, viruses, e.g., worms, trojan horses, etc., or other items of a destructive nature, which may be contained in this attachment and shall not be liable for direct, indirect, consequential or special damages in connection with this e-mail message or its attachment.
