What is HDFS – Overview of Hadoop’s distributed file system

Hadoop comes with its own distributed filesystem, HDFS. As the use of the internet is increasing, we are producing data at astonishing rates. With the increase in the size of data, we face issues of storage as well as processing such huge datasets. We can increase the limit of a single machine to a finite extent (Vertical scaling). It becomes costly and unreliable…

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Read and Delete MongoDB Documents

In this tutorial, We are going to learn how to Read and Delete MongoDB Documents . We have been already using read operations in our queries to validate our results. Now we are going to see some advanced operations along with the normal read query. Reading MongoDB documents We have been using find query to read MongoDB documents in our previous…

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Update MongoDB Documents

In this tutorial, we are going to learn how to update MongoDB documents. Prerequisite For this tutorial, we need running installation of MongoDB along with the test dataset. If you have been following these tutorials, then you should have those set up already on your machine. If you are directly reading this and you need to install MongoDB and set…

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MongoDB Operators – Part II

In the last tutorial, we have seen some of MongoDB operators. Lets us look further and learn about remaining MongoDB operators. Prerequisite I assume that you have a working installation of MongoDB. If not then you can follow this tutorial installing MongoDB on Windows. We have seen some of the operators in the last tutorial; you can take a look…

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