Tuesdays with Morrie I loved the narration. I loved the content and the insights this book provides in addition to the beautifully crafted chapters. Almost every page gets you into a contemplative mode of introspection about life, love and the ‘culture’. The biggest take away for me from this book is this: Culture is a man-made thing and is presented in such a way that people tend to conform to it.

Accessing gcp compute instances via gcloud sdk You have a bunch of options to ‘ssh’ into gcp VM instances: open in browser window open in browser window on custom port open in browser window using provided ssh key another ssh client (putty, termius, etc) I personally find the ‘gcloud sdk’ way much more convenient to use since I can just launch it from my terminal without having to open the browser, log into cloud console, locate the vm instance and then ssh’ing into it.

Problem Solving is the gold We all focus on problem solving. We are in pursuits of so many activities which aim to identify the problems, propose a solution to them, build the solution and hopefully create some value out of it. But what is good problem solving? Especially in the realm of computer science. The greatest part in ‘problem solving’ is not actually the solution. Its the break down of the problem.

Sample github action for gradle build

Migration to Cloud As your applications scale it becoomes tedious, expensive and error prone to have it all on your data centers. Modern microservices are built with the philosophy of isolation. Scaling up and down of those services should happen with a snap of a finger (enter containerization technologies like dockers replacing traditional VMs), you scale up to serve bigger traffic and also to make it fault tolerant. But even if you have 20 docker pods, a failure in data center as simple as switch failure can bring your whole infrastructure to its knees.

TaskWarrior CLI TaskWarrior is a CLI based task manager which I find pretty handy to use. When you are working on something (where your linux terminal is always with you), you can just create an interactive todo from your command line. ~/sudip/sudipbhandari126.github.io(master*) » task add write a blog about task warrior reminder sudipbhandari@sudipbhandari-Latitude-5480 Created task 1. ---------------------------------------------------------------------------------------------------------------------------------------------- ~/sudip/sudipbhandari126.github.io(master*) » task list sudipbhandari@sudipbhandari-Latitude-5480 ID Age Description Urg 1 3s write a blog about task warrior reminder 0 1 task ---------------------------------------------------------------------------------------------------------------------------------------------- ~/sudip/sudipbhandari126.

ifnull <=> nvl Oracle: select nvl(null,1) from dual; Mysql: select ifnull(null,1) from dual; dual is optional in mysql. Oracle needs a ‘from expression’ for all the queries. Dual table is just a dummy to serve that syntax desc dual; Name Null Type ------------------------------ -------- --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- DUMMY VARCHAR2(1) fetching rownum in oracle and mysql Oracle: select rownum, $column from $table (rownum is a pseudocolumn in oracle) Mysql: select row_number() over() as row_num, $column from $table SET @rownum:=0; SELECT @rownum:=@rownum+1 AS rownum, $column FROM $table (for older mysql versions)

What is ELK stack? Instead of writing about what exactly ELK is, let me state the need and use cases for it. Log aggregation and efficient searching In a very naive scenario you have one server and lots of log messages generated by your application and system which are crucial to look at once something goes wrong. Now there are basically two problems with it: Manually digging through a log file is really an anachronism.

This github page This blog is a github page based on jekyll now and the URL as per github convention is sudipbhandari126.github.io (It’s username.github.io) unless you set up a custom domain. As of Jan 2020, I have a custom domain setup for this at www.sudipbhandari.wtf. I had some insights into internet domains, dns and domain resolution while doing this activity. How are domains organized? All the internet domains are organized in a hierarchical fashion.

Almost everyone starts off coding in a very imperative fashion. You figure out the rules, syntax of the language and you figure out the logical solution to the problem and start off coding. As you start doing so you discover some idiosyncracies of the language and you start focusing on making the code more and more ‘concise’. If unchecked this can lead to obfuscation where you just increase the cognitive load of the program.