How to prevent data loss in Elasticsearch?

Six practical solutions to improve data reliability: improve number of replicas, snapshot and restore, RAID, MQ, etc.

Making Backward-Compatible Schema Changes in MongoDB

How to add or remove a field from a Mongo collection without breaking the production?

Feature Flag: Making Your Application More Reliable

How to make your web application more reliable with feature flags?

Create A Throttler In Java

What is throttling and how to write a simple throttler in Java.