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I would like to create a database for each customer. But before, I would like to know how many databases can be created in a single instance of MongoDB ?
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Database size: 5.2 GB. Index size: 1.07 GB. Total Collections: 365.
M0 free clusters and M2/M5 shared clusters can have a maximum of 100 databases and 500 collections total.
mongoDB database : Each database gets its own set of files on the file system. A single MongoDB server typically has multiple databases.
Working with MongoDB and ElasticSearch is an accurate decision to process millions of records in real-time. These structures and concepts could be applied to larger datasets and will work extremely well too.
There's no explicit limit, but there are probably some implicit limits due to max number of open file handles / files in a directory on the host OS/filesystem.
see: http://groups.google.com/group/mongodb-user/browse_thread/thread/01727e1af681985a?fwc=2
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