README.md

ec2-consistenet-snapshot

This is a fork of the original ec2-consistent-snapshot written by Eric Hammond.

The difference is that this version has support for MongoDB.

Installation

On Ubuntu Lucid EC2 instance:

sudo apt-get -y install build-essential libio-socket-ssl-perl libdatetime-perl 
sudo PERL_MM_USE_DEFAULT=1 cpan -fi MongoDB MongoDB::Admin

Copy this ec2-consistent-snapshot to /usr/bin/ replacing old file.

Usage

Below is an example command for snapshotting Mongo. It will lock and fsync the DB, take the snapshot, and then unlock it. You can add a --stop to have Mongo restart afterwards.

ec2-consistent-snapshot                                    \
--mongo                                                    \
--xfs-filesystem /data                                     \
--region us-east-1                                         \
--description "RAID snapshot $(date +'%Y-%m-%d %H:%M:%S')" \
vol-VOL1 vol-VOL2 vol-VOL3 vol-VOL4 vol-VOL5 vol-VOL6 vol-VOL7 vol-VOL8

Author

Originally by Eric Hammond. Modified by Eric Lubow.

Website

https://launchpad.net/ec2-consistent-snapshot

Examples are in a blog post available here: http://eric.lubow.org/2011/databases/mongodb/ec2-consistent-snapshot-with-mongo/