How to enable additional logging when running `hadoop fs` with MAPRFS?

When I run this command: hadoop fs -copyFromLocal /tmp/1GB.img ‘maprfs://maprfs.example.com/tmp/1GB.img’ I get the following errors. 2014-11-05 01:21:08,7669 ERROR Client fs/client/fileclient/cc/writebuf.cc:154 Thread: 240 FlushWrite failed: File 1GB.img, error: Invalid argument(22), pfid 4484.66.266002, off 65536, fid 5189.87.131376 14/11/05 01:21:08 ERROR fs.Inode: Write failed for file: /tmp/1GB.img, error: Invalid argument 14/11/05 01:21:08 ERROR fs.Inode: Marking failure for: /tmp/1GB.img, […]

Docker pull error : x509: certificate has expired or is not yet valid

Description of problem: I’m trying to pull ubuntu from the public registry with this command : docker pull ubuntu And then i got this results (the previous command was working yesterday) : “Error while pulling image: Get https://index.docker.io/v1/repositories/library/ubuntu/images: x509: certificate has expired or is not yet valid” docker version : Client: Version: 1.10.0 API version: […]

Maven build, test and run on a docker machine

It’s probably too soon to ask this question but I hope someone has already had the same problem as me. I have to build a jar that run on a centos7, openjdk-7 machine. I created a docker machine in a ridiculously short time 🙂 but my issue is more a maven one. My questions is […]

Could I use docker or something similar to deploy windows application?

I am running a game on Windows, and it requires every OS can only run one. And If I want to run more, currently I open vmware and run the game inside. But the problem is it takes too much memory and disk to run a whole another virtual OS. I know docker will reduce […]

Using Vagrant and Docker together, by example

So this weekend I installed both Vagrant and Docker on my laptop and played around with them a little bit. I totally understand that they are different beasts with different intentions in mind. But I can’t help to think: how could they be used to complement each other? If you Google “Docker vs Vagrant” you’ll […]

Docker : initial installation script fails (ubuntu 13.04 , kernel 3.8+)

I created this script according to docker.io installation instructions for Ubuntu 13.04 with 3.8+ kernel, but script is interrupted as lxc-docker installation fihishes. ssh -o StrictHostKeychecking=no -t -t -i $CERT $USER@$SERVER <<‘ENDSSH’ sudo DEBIAN_FRONTEND=noninteractive apt-get -y install software-properties-common sudo DEBIAN_FRONTEND=noninteractive add-apt-repository -y ppa:dotcloud/lxc-docker sudo DEBIAN_FRONTEND=noninteractive apt-get -y update sudo DEBIAN_FRONTEND=noninteractive apt-get -y install lxc-docker echo […]

Run one app on multiple elastic beanstalk instances

I have one Flask app which handles a number of things which are common to a number of elastic beanstalk applications: logging, database/ORM, error handling, are all handled by Flask, and similar across elastic beanstalk instances. I have four eb applications, which each do different jobs, demand different docker images, and so on. One approach […]

Docker images contain old maven dependencies

I’m using shippable for building docker images. The issue I’m facing is, docker images contain the old maven dependencies along with the new ones which causes problem for class loading. I verified that during the build creation the build folder only has the desired jars. But when image is packaged and shipped to dockerhub, old […]

Creating isolated Docker Zones

I am looking for a project that allows you to create isolated docker ‘zones’ (across servers preferably). Imagine I say I have 3 zones foo, bar, baz. In zone foo I want process a,b & c to all be able to communicate. By example I have an application that needs ‘mongo’, I create a mongo […]

docker deploy image on multiple servers

I have developed an app image using docker.I am able to run the image but now i need to deploy it on multiple servers.I came across fig which can deploy app on multiple servers.But they are all in development stage and do not know how well they work.How can i deploy my docker image on […]

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