Hello, can someone explain or point me to some solution of how to use MongoDB and new Block Storages. I have existing MongoDB database and I want to enable it to store data on new created and mounted Blocks. Is that even possible and how can be done? Thanks
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That is possible and one method of doing this is:
First stop mongodb
sudo service mongodb stop
Move your database to block storage. (Depending on the version, your database may be in a different location. Check your MongoDB config file for dbpath option.)
sudo mv /usr/local/var/mongodb /block/storage/mongodb/
Create a symlink to the new part of the database. (Depending on the version, your database may be in a different location. Check your MongoDB config file for dbpath option. )
sudo ln -s /block/storage/mongodb/ /var/lib/mongodb
Setting permissions
sudo chown mongodb:mongodb /block/storage/mongodb/
Start MongoDB sudo service mongodb start
This is one method of doing it, you can also edit your MongoDB config file and set the dbpath option to block storage.
@lukaobuljen - How will you use the new block storage for your MongoDB: scaling, migrating, replication, or backup? Note that block storage is a bit slower than your typical SSD only droplets.