Remove auto-restarting process on mac

I got problems with a process which descrbibed itself on my mac as /Library/PrivilegedHelperTools/com.alibaba.security.aliedr. It was launched with root privileges and was started by the system after sudo pkill -f com.alibaba.security.aliedr. Renaming a file in the dir and rebooting did not help. What did help is this article — https://www.macworld.com/article/2047747/take-control-of-startup-and-login-items.html. I’ve found it and renamed …

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env-file parser for Goland

You can use env-file parser for running and debugging your app in Jetbrains’ products like Goland. It’s pretty simple and works. https://github.com/Ashald/EnvFile

Linux. History of system usage

There is a way to monitor your system usage and log to a file easily — with atop command. On my Ubuntu it can be installed with

It can be started as a top command — it’s output almost the same. But the most interesting feature is that it starts a daemon that logs …

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Golang patterns. Worker pool

Further reading: https://gobyexample.com/worker-pools

PgBouncer and prepared statements

In our system, we use connection pooler called PgBouncer as a proxy to PostgreSQL server. PgBouncer has two main modes Session pooling mode This mode is less performant (it’s a default mode). When a client connects, a server connection will be assigned to it for the whole duration it stays connected. So it does not …

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Golang: testing http and grpc servers

HTTP server is quite easy to test — here is a nice video about it:

Count lines in git repository

https://stackoverflow.com/questions/4822471/count-number-of-lines-in-a-git-repository

Algorithms to find fastest route through network

This is a great article on that — https://www.redblobgames.com/pathfinding/a-star/introduction.html (in russain). It tells about Dijkstra, Breadth-first, Greedy and A* algorithms. It’s all about optimization of one travel. To optimize your entire network you should try to use Aint Colony algorithm — http://rain.ifmo.ru/cat/data/theory/unsorted/ant-algo-2006/article.pdf (it’s in russian). Another link to this PDF file — aca

How go code is being compiled to assembler code

https://go.godbolt.org/z/31FyJ3 I was interested in comparing line 15 vs line 17 of the following code:

E2E tests in go

I tried it via ginkgo and gomega. It has Agouti with WebDriver support out of the box, but I didn’t use it as we have grpc API. That’s the example (table tests):