Today I decided I would write a little blog entry about how to backup mongodb using Linux LVM snapshots. I have seen a lot of questions regarding “what” is the best method to backup mongodb lately on the IRC channel #mongodb.
I’m currently in the process of writing automation to deploy replica sets of mongodb to the cloud with a single command. When attaching my EBS volumes I noticed that I was regularly getting an error that stated: mdadm: cannot open /dev/xvdf: Device or resource busy
As I continue to watch the community and observe which questions which are asked over and over again I feel inclined to blog about common misconceptions or misunderstandings for new mongodb users. Lately I see a trend of questions regarding how mongodb utilizes memory and memory mapped files.
An interesting article by Swapnil Bhartiya over on Muktware discusses this prospect with Prakash Advani, Canonical’s Partner Manager for Central Asia and Bhartiya indicates that Ubuntu has found its own niche, “an Apple-like approach.” The question of whether Ubunto plans to go into hardware as a complete solution is then asked. Advani asserts that there