Dmitry Romanoff articles - 217 total
Building an Interactive S3 Bucket Manager with Bash
Managing AWS S3 buckets from the command line can be tedious, especially when you need to perform...
Export AWS Untagged Resources to CSV for Analysis and Reporting
Managing AWS resources without proper tagging can quickly become a nightmare for cost allocation,...
Find Untagged AWS Resources Across All Regions with Python
Resource tagging is crucial for AWS cost management, security, and governance. Untagged resources can...
Document_DB_Command_Describer: GenAI-Powered Document Database Command Helper
Working with document databases like MongoDB or Couchbase can be tricky—especially when it comes to...
Document_DB_Command_Describer: Simplifying Document Database Commands
Are you working with document databases and often find yourself struggling to remember the exact...
When Not to Use Machine Learning (and Why It Matters)
Machine learning (ML) is everywhere—from recommending your next movie to powering self-driving cars....
Boosting Performance with AWS DocumentDB: Exercises in Data Modeling and Optimization
When working with AWS DocumentDB, it's essential to understand how to efficiently query and...
Querying a Nested Array with `elemMatch` in Amazon DocumentDB
Let's say you have a MongoDB-like database (Amazon DocumentDB) where your collections include...
Working with AWS DocumentDB: Indexing, Performance, and Stats at Scale
Amazon DocumentDB is a fully managed document database service that supports MongoDB workloads. In...
Monitoring and Managing Heavy Aggregations in AWS DocumentDB
Amazon DocumentDB is a scalable, fully managed document database service designed to work with...
Playing with Indexes in MongoDB
Indexes in MongoDB can dramatically improve the performance of your queries—if used right. In this...
Randomized Data Sampling and Aggregation in MongoDB
As developers, working with large datasets is often a part of our daily routines. MongoDB, a popular...
Fixing the SSH “Broken pipe” Error When Connecting to EC2
If you're working with AWS EC2 instances, chances are you’ve run into this frustrating message during...
12 Useful MongoDB Commands Every Developer Should Know
MongoDB is a powerful NoSQL database, and while it’s easy to get started, having a good handle on...
Why High Employee Turnover Hurts Profitability — A Python Simulation
TL;DR: High turnover is expensive. We built a Python simulation to show how frequent employee...
Keeping Your SSH Tunnel Alive: A Handy Bash Script for Monitoring
If you're working with remote resources like AWS DocumentDB or any cloud-hosted service behind a...
Fixing "Broken Pipe" SSH Tunnel Disconnects When Connecting via Bastion
If you've ever tried setting up an SSH tunnel to connect through a bastion host, you might have run...
Accessing AWS DocumentDB via SSH Tunnel Using Python
Amazon DocumentDB is a scalable, highly available, and managed document database service that...
Stress Testing Amazon DocumentDB with Python
If you're working with Amazon DocumentDB and want to evaluate how your cluster performs under load, a...
How to Connect to Amazon DocumentDB with Python (`pymongo`)
Amazon DocumentDB is a fully managed document database service that supports MongoDB workloads. While...
Optimizing Amazon DocumentDB Queries with `$hint` and `$project`
Amazon DocumentDB is a fully managed NoSQL database service that supports MongoDB workloads. If...
Bulk Operations vs Individual Operations in Amazon DocumentDB
When working with Amazon DocumentDB, optimizing performance is key to ensuring that your application...
Exploring Nested Document Structures in Amazon DocumentDB and MongoDB
When working with Amazon DocumentDB or MongoDB, one of the powerful features is the ability to create...
Exploring Embedded Documents in AWS DocumentDB with Python
AWS DocumentDB, a scalable, highly available, and fully managed document database service that...
Connecting MongoDB Compass to Amazon DocumentDB: A Step-by-Step Guide
MongoDB Compass is the go-to GUI for developers working with MongoDB. It's powerful, intuitive, and...
Unlocking Market Sentiment with Python: Analyzing Options Data Using `yfinance`
Options trading offers a unique window into market psychology. By analyzing where investors are...
Pulling Options Data with Python and yFinance — and Saving it Like a Pro
If you’re diving into financial data analysis with Python, chances are you’ve come across yfinance....
🌬️ Winds of Change in Options Analysis: Visualizing Market Signals with Python & Google Charts
"The winds of change are blowing, and with them come opportunities for those willing to...
Visualizing Options Market Data in Python: Implied Volatility, Open Interest, and Max Pain
If you're fascinated by the options market or want to dive into financial data analysis using Python,...
📊 Predicting Stock Price Movement Using Options Data in Python
Have you ever wanted to use real stock options data to estimate a stock's expected move and find the...