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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.
Notes/Technology

Fixing Cqlsh Import Error

Posted on August 22, 2019 by Kj / 0 Comment

Problem: Running Cqlsh exits with the error : Fix: Set right python path KjKj [/.] Sreekumar programs computers as a hobby and profession. Into programming from...

Conversational AI/Technology

Planning conversational Automation – Here’s what you should look for !

Posted on August 18, 2019 by Kj / 0 Comment

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...

Notes/Technology

Fix for – W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Temporary failure resolving ‘archive.ubuntu.com’

Posted on May 15, 2019 by Kj / 0 Comment

Problem: apt-get update gives an error : [bash] W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Temporary failure resolving ‘ar...

Notes/Technology

View logs and debug a docker service

Posted on May 14, 2019 by Kj / 0 Comment

  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 ...

Notes/Technology

How to install Docker Compose on Ubuntu 18.04 LTS

Posted on May 13, 2019 by Kj / 0 Comment

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...

Notes/Technology

GCloud gives warning : `docker-credential-gcloud` not in system PATH

Posted on May 4, 2019 by Kj / 0 Comment

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 ...

Notes/Technology

Python print not displayed in docker console

Posted on May 4, 2019 by Kj / 0 Comment

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...

Notes/Technology

Spring boot and Hibernate Second Level cache giving NoCacheRegionFactoryAvailableException

Posted on November 16, 2018 by Kj / 0 Comment

Problem: Setting below in application.properties, [bash] hibernate.cache.use_second_level_cache=true hibernate.cache.hazelcast.use_native_client=true hibernate....

Notes/Technology

Linux: Copy files owned by a user to another folder

Posted on September 30, 2018 by Kj / 0 Comment

Example To copy all files owned by root in folder rpms to say folder docker-rpms, do this – [bash] find rpms -user root -exec cp -f {} docker-rpms/ \; [/b...

Notes/Technology

Openfire with Smack disconnects with error : You acknowledged stanzas that we didn’t send

Posted on August 7, 2018 by Kj / 0 Comment

  Problem: After connecting, openfire servers disconnects from Smack client giving an exception as below – Connection XMPPTCPConnection[dhee@dheeyant...

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Recent Posts

  • Fix : Docker node down after restart
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  • React Ajax call on load gives : “Error: Should not already be working.”
  • Fix : The repository ‘http://archive.ubuntu.com/ubuntu disco-backports Release’ no longer has a Release file.

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