Ubuntu : retain host-name change after a reboot
Problem: The newly set hostname reverts back to older one after reboot Reason : Hostname is reset by cloud-init Solution : Inactivate cloud-init. On terminal, k...
Author: Kj
Kj [/.] Sreekumar programs computers as a hobby and profession. Into programming from his school days, Sree uses Codemarvels to key in facts and fixes he finds interesting while working on different projects. Some of the articles here give away a few shades of his philosophical leanings too.
Machine Learning – the basics
Hey there ! So you are a programmer, wanting to master machine learning ? You are at the right place. Lets get started. So, what exactly is machine learning ? W...
Fixing Cqlsh Import Error
Problem: Running Cqlsh exits with the error : Fix: Set right python path KjKj [/.] Sreekumar programs computers as a hobby and profession. Into programming from...
Planning conversational Automation – Here’s what you should look for !
Are you planning to bring in conversational automation using AI to make your processes more cost effective and consistent ? There are certain things I would lik...
Fix for – W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Temporary failure resolving ‘archive.ubuntu.com’
Problem: apt-get update gives an error : [bash] W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Temporary failure resolving ‘ar...
View logs and debug a docker service
To debug why a container within a docker stack didn’t start, these commands will help [bash] #list all processes docker service ls #note the id of ...
How to install Docker Compose on Ubuntu 18.04 LTS
Here’s how to install docker-compose on Ubuntu LTS : Open terminal and run these commands [bash] sudo curl -L "https://github.com/docker/compose/rele...
GCloud gives warning : `docker-credential-gcloud` not in system PATH
Problem : On an Ubuntu VM, the Docker pulls from Gcloud private repository give the error [bash] Error response from daemon: unauthorized: You don’t have ...
Python print not displayed in docker console
Problem: Python print function not printing to display when running inside docker Reason: The python output is buffered. Solution: Run python (in the docker fi...
Spring boot and Hibernate Second Level cache giving NoCacheRegionFactoryAvailableException
Problem: Setting below in application.properties, [bash] hibernate.cache.use_second_level_cache=true hibernate.cache.hazelcast.use_native_client=true hibernate....