MongoDB findOne is orders of magnitude slower than find if you just checking whether a document exists. Learn when you should use findOne or find queries.
14th March, 2013 Read more.
How Server Density uses MongoDB to process 2 billion documents per day, 30TB of data each month to power our time series server monitoring graphs.
14th March, 2014 Read more.
3rd August, 2010 Read more.