btaz

I committed changes to my GIT project, tried to push them to the remote server (git push) and got the following cryptic error message:

fatal: The remote end hung up unexpectedly

The GitFaq states that:

Git push fails with “fatal: The remote end hung up unexpectedly”?
If, when attempting git push, you get a message that says:
fatal: The remote end hung up unexpectedly

There are a couple of reasons for that, but the most common is that authorization failed. You might be using a git:// URL to push, which has no authorization whatsoever and hence has write access disabled by default. Or you might be using an ssh URL, but either your public key was not installed correctly, or your account does not have write access to that repository/branch.

I used “git config –list” to review my project configuration

core.repositoryformatversion=0
core.filemode=true
core.bare=false
core.logallrefupdates=true
core.ignorecase=true
remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
remote.origin.url=git://git.some-domain.com/my-project
branch.master.remote=origin
branch.master.merge=refs/heads/master
branch.v2.remote=origin
branch.v2.merge=refs/heads/v2
gui.geometry=1374×727+34+82 301 201

The culprit here is the “remote.origin.url” property, it’s pointing to a read-only repository. We can change this using “git config –edit”. We want to change:

remote.origin.url=git://git.some-domain.com/my-project

to

remote.origin.url=git@git.some-domain.com:/my-project

Please note that the specific user “git” is specific to my setup and your GIT setup/configuration is most likely different. After this change I was able to successfully push my changes to the remote server.

The reason to why I got the read-only version of the project was because I used “git clone git://git.some-domain.com/my-project” when I should have used “git clone git@git.some-domain.com:/my-project”

I just came back from the Hadoop World conference in New York and I have to say that it was quite exciting. Processing huge amounts of data used to be a problem for just a few companies like Google, Yahoo, Facebook and a few others, but has now become a problem for many. The conference topics were interesting and the training held by Cloudera was really good. My personal recommendation is to get up to speed on Hadoop and related technologies e.g. HBase, Hive, Pig etc. quickly since I think that the ever growing data sizes will soon make these tools commonplace. It takes time to learn how think at scale and to use these tools properly. I’ve now seen how “big data” has grown to such sizes that not even big clustered databases like Oracle RAC provide the ability to quickly process and extract information for our needs. Hadoop is not a universal tool for big data problems, but for a certain set of problems it’s quite powerful and provides almost linear performance as you scale up your compute cluster. Cloudera has excellent videos for Hadoop here: http://www.cloudera.com/resources/?media=Video to get you started. Tom White’s “Hadoop: The Definitive Guide (2nd Edition)” is excellent and I can highly recommend it.