This is use case based example, which you may encounter during working on mongoDB.
Continue reading Example Of Fixing A Bad Shard Key in mongoDB
Up-gradation in mongodb sharded cluster is easy, if you know the step else you have to strugle a bit.
Continue reading Upgrades on Sharded Clusters
Adding of the index on primary in the replicaSet and that created index would replicate to Secondary node. But sometimes we required to create an index on secondary only. The question is why we required on Secondary only, it’s basically for reading optimize index as we read from Secondary.
Continue reading How to Add Index on Secondary Replicaset in MongoDB
What is distributed system? Sometimes, this is very critical to define a system whether provided system is distributed or not ? well so this is completely depends on the surrounding attributed which you are looking for.
According to Andrew S. Tanenbaum
A Collection of Independent computers that appears it to users as one computer.
– Andrew S. Tanenbaum