Bravo questions

• how to install kubectl autocompletion plugin for zsh?
• how to find how many requests per second , my spring boot app received?
• How to use MDC of logback and SLF4J with spring boot to capture unique tracking in the POST request json?
• how to replace jackson in spring boot application as automatic marshaler and unmarshaler with jsoniter
• how to find the json size stored in a column of postgres
• How to solve "Can't assign requested address: Service 'sparkDriver' failed after 16 retries" when running spark code?
• how many total connection or max connections are available in Redis Server?
• Java 8 stream operations execution order
• what is the max key length and max size of value in memcached?
• What is busy spin in a multi-threaded environment?

Bravo answers