Elasticsearch provides the ability to log slow search queries that exceed a certain threshold. When enabled, all the search queries that exceed the given threshold are...

I recently stumbled upon a strange occurrence in an ORM’s query retry implementation for SQLite. Some of my queries were getting stuck in a retry loop...

FoundationDB is a distributed key-value store. From the database perspective, both keys and values are just bytes. Keys are sorted lexicographically and different chunks are assigned...

FoundationDB is a distributed key-value store. The whole database can be considered as a giant sorted map where keys and values are bytes. FoundationDB client libraries...

One of our customers wanted to setup a time based job scheduling system, similar to cron, to reliably schedule critical tasks. They were already using sidekiq,...

How interest rates and time period of investment, effects return.

For many problems in programming, the most straightforward solution is to transform a list (E.g. map/filter/reduce etc over it). Once in a while, there will be...

At a project I am working on, our backend system makes http requests to hundreds of different servers. It is sort of like webhook, http requests...

Failures are inevitable in any system. How it should be handled varies from one system to another. In job processing systems, a common approach is to...

The Y combinator is an interesting construct, allowing recursion without referring the function being recursed. In other words, call a function recursively, without naming it. We...

TL;DR A minimal synchronous mocha like DSL, in less than 100 lines of JavaScript. Code at github.com/ciju/mini-mocha

colorlog.js Helps with managing the information overload in JavaScript Console logs.

To access a server on the internet, you need its IP address and port. Your local machine might be running behind a NAT. So, a server...