When doing interviews in the past, I always had hard times to figure out how could I ask about those things which are important to me. Let’s face it when you are in an interview, and you want to know if you are supposed to work in the weekends or not, it is not always to best way to ask about this directly because you’ll have a chance that the company will lie to you about that. So, for example, you can ask instead ‘How responsive are people to emails/Slack over the weekends and after 6pm?’ and then you might have the chance that you’ll have the answer you are looking for.
I know this because I recently read this in this on a page at keyvalues. There are a few really good questions there, so I recommend to check the page – you never know when you’ll need this.
It was a long time ago so I won’t write about the conference (it was good as always), but at least I share the slides of my talk here.
On the other day, I was sitting in front of my console, and tried to get the courage to run ‘terraform destroy’.
I started to think about what shall I do in the future to avoid situations like this, and then I realized the problem is with the ‘default’ section. When you run the ‘aws configure’ command, it will create you a section named ‘default’ in the .aws/credentials and .aws/config files, from that very moment you will use that section as your … well, as your default credentials, and when you add more and more keys, you can select them by using ‘–profile’ switch over and over again.
Continue reading “AWS Profile switching”
This was fun!
I mean, I did not create any new content here for a while, and I have very good reasons about that – but tbh I was lazy, and overwhelmed with stuff to do.
We migrated everything to AWS – so be prepared for some Amazon related posts, I changed MySQL to Aurora and my company itself changed a lot.
In this pause time, I tried to migrate everything to Jekyll, but it wasn’t a success, then I spent the time to migrate everything to Hugo … and now I am on WordPress again. Funny.
In the future, I plan to make the posts here a bit more diverse, not just tech stuff. We’ll see it.
I just created the Budapest MySQL Meetup group. I hope there will be interest for that, the first event is under organising. Check it if you are near Budapest!
Earlier this week we had a discussion with fellow DBAs about our mysql prompts, and at the end of the day it showed up, that a lot of us hit the same problem.
The problem is, that when you set up your mysql prompt then ‘\h’ will be resolved to ‘localhost’ when you connect locally – instead the name of your host as you expect it. It always bugs me, and once I spent a good afternoon figuring out how to workaround this.
Well, the workaround is not a big deal, because you can insert any text into your mysql prompt, and after you realise that you can do it, then it is easy: just put the hostname into your prompt with your chosen provisioning tool and that will do.
Continue reading “My MySQL command prompt”
I was on the quest of searching the Holy Grail of Go programming, and I found something, which I doubt that it is, but close enough – for the first sight.
I have several problems with GO, first, that I write my code on an OSX box, and I’ll run the programs on Linux hosts, so I have to solve the cross compilation; my second problem with Go, that I don’t really like the “There is a GO project folder, and all the GO projects are relying on” approach. It makes using GitHub painful.
Continue reading “The way I like to compile my Go programs – Makefile”
Saturday I was in my favorite grocery store, standing in the line, browsing the net on my phone. I read Vadim Tkachenko‘s blog post about Measuring Percona Server Docker CPU/network overhead and his findings were opposite than mine – he didn’t found any measurable difference. Reading his post, he did found huge impact in networking which I didn’t check, so I was re-run my checks again, but now with paying attention to network configuration.
Continue reading “MySQL/docker performance report update”
Back in October I have write about possible ways of running multiple MySQL instances on the same hardware. As the months passing by, the project of splitting our database schemas into standalone instances is closing in, so I started to check the different ways.
EDIT: This post is outdated, here is the follow up.
Continue reading “MySQL in docker or native – performance benchmarks”