Ayende @ Rahien

Oren Eini aka Ayende Rahien CEO of Hibernating Rhinos LTD, which develops RavenDB, a NoSQL Open Source Document Database.

You can reach me by:

oren@ravendb.net

+972 52-548-6969

Posts: 7,059 | Comments: 49,783

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time to read 1 min | 76 words

On October 26, I’ll be giving a two days workshop on RavenDB 5.0 as part of the NDC Conference.

In the workshop, I’m going to talk about using RavenDB from scratch. We are going to explore how to utilize RavenDB, modeling and design decisions and how to use RavenDB’s features for your best advantage. Topics includes distribution and data management, application and system architecture and much more.

I’m really looking forward to it, see you there.

time to read 1 min | 65 words

Next week I’m going to be talking with Ryan Rounkles about his use of RavenDB in Tended App. The Tended App is a medical services app for parents with a child that has medical needs. It can be something as simple as the sniffles or a 24-hour virus, to special needs kids which require constant attention.

Join us on Aug 25, 2020 10:30 AM EST.

time to read 1 min | 65 words

I had the pleasure of talking with Vaishali Lambe in SoLeadSaturday this week.

We talked about various aspects of being in - Building a business around open source software, Working in a distributed teams, Growing a company from 1 employee to 30+, Non technical details that are important to understand to run a company. Also, discussed an importance of blogging.

You can check it here.

time to read 2 min | 366 words

I’m teaching a cloud course and I gave the students a task to do. I also now have to go through about fifty projects and evaluate them. I might not have thought this one through Smile.

What is interesting is the approaches that I’m seeing to solve the problem.

There is a wide disparity in the amount of code that people write. Sometimes by an order of magnitude. The students can chose any language, but in practice they almost all chose either Python or Node.  There were very few that used Java (and wow that was painful to read). Two people submitted Java code. One of them gave me a single file, under 100 lines of code. The other gave me a project with 12 files (repository, service, controller, etc) and over 600 lines of code.

Then there were the people who zipped node_modules and sent it over. My poor hard disk… One guy send a zip file that is 173 MB in size, which I’m afraid to look at (it looks like he included terraform.exe and multiple copies of node_modules!).

At any rate, the reason for this post is that among the ~50 home work assignment, there was one that really shined. Not only did the student explain their reasoning in clear and concise manner, they were able to look at the problem from another angle, drastically simply the entire work and avoid a whole set of common pitfalls. They were also able to do that in about 75 lines of code and most of that was required boilerplate.

I just had to go and find the docs to some obscure Python library to figure out how someone can write a solution to the problem in one tenth of the code that everyone else did and do that while behind correct, faster (they implemented caching, which very few did) and much simpler to read and understand. I’m impressed enough to write a blog post about it, after all.

I went over about fifty of assignments, and this one was a pure nugget to keep me slogging through things. There were bugs in the code, mind you, but the architecture and the approach were solid.

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  1. Webinar recording (9):
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  2. Podcast (3):
    17 Aug 2020 - #SoLeadSaturday with Oren Eini
  3. RavenDB Webinar (3):
    01 Jun 2020 - Polymorphism at Scale
  4. Talk (5):
    23 Apr 2020 - Advanced indexing with RavenDB
  5. Challenge (57):
    21 Apr 2020 - Generate matching shard id–answer
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