Tag Archives: Virtualization

Docker Supervisord – Way to run multiple Demon process in a container

The docker was released keeping in mind, one daemon  per container which makes the container lightweight. Like suppose for running a web application, one container will serve database, one container will server as web server, one container  will server as  caching … Continue reading

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xend Error: Acquire running lock failed: 256

Recently I encountered this issue in OVMM 3.2.9  while starting a vm with xm create <vm.cfg path> The reason behind this found was : the vm was not shutdown properly  and the lock file is still there even if VM … Continue reading

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xend issue : Xend has probably crashed! Invalid or missing HTTP status code.

I recently found  some VMs of one OVS node( from 30+ nodes)  went down and not able to start with this error : Xend has probably crashed!  Invalid or missing HTTP status code. There are many reasons behind this. And … Continue reading

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Using Docker – Part 1

In this part we will go through some simple usage of docker command. Use -D with docker for debug mode. Docker images are Immutable and Containers are Ephemeral. How to get help ?? docker help docker <command> help 1. Check … Continue reading

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Docker Concept & Setup

Why Containerization ? Up to now we have been working with monolithic applications where different components of service are packaged into a single application which is easy to develop, test and deploy.But when it becomes large and complex it’s become difficult … Continue reading

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