HOMEWORK 4.4 MONGODB

To start, please download sysprofile. This is a comma separated value file that you can import into MongoDB as follows: This is a comma separated value file that you can import into MongoDB as follows:. But you can, for fun. We are also providing a patriotic if you are an American data set for the blog. Your assignment is to figure out the “State” that recorded the lowest “Temperature” when the wind was coming from the west “Wind Direction” between and

But you can, for fun. Then install all the dependencies listed in the ‘package. Change directory into hw1 Use mongorestore to restore the dump into your running mongod. Isolate those queries and use explain to explore. Note that this requires Node. With it, you can test your code and look at the Feedback section. To do this, first download the hw

But you can, for fun. You should not need to touch any other code. You must load this dataset to complete the problem. Check all that apply. Change directory into hw1 Use mongorestore to restore the dump into your running mongod.

Hello from MongoDB!

The blog stores its data in the blog database in two collections, users and sessions. You will need to download one of the following versions of the MongoProc client, which will verify on your local machine homwork that the signup and login pages of the blog work properly.

If you goto http: There are entries with lots of comments and tags. Here are some URLs that must work when you are done. Once you have added the indexes to make those pages fast, just validate your work with MongoProc.

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Note that this requires Node. By fast, we mean that indexes should be in place to satisfy these queries such that we only need to scan the number of documents we are going to return.

What is the latency of the longest running operation to the collection, in milliseconds? To do this, first download the hw To confirm you are on the right track, here are some queries to run .44 you process the data with the correct answer shown: You will see a message below about your number of submissions, but you must submit this assignment using MongoProc.

Now query the profile data, looking for all queries to the students collection in the database school2, sorted in order of decreasing latency.

Do this by opening a terminal window mac or cmd window windows and navigating to the hoework so that the dump directory is directly beneath you.

homework 4.4 mongodb

It should redirect you to the welcome page and say: Your assignment for this part of the homework is to install the mongodb driver for Node.

With it, you can test your code and look at the Feedback section. When you login or sign-up, the blog will redirect to http: To nomework out what queries you need to optimize, you can read the code in posts.

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homework 4.4 mongodb

There is also a ‘views’ directory which contains the templates for the project and a ‘routes’ directory which contains our express routes. You should see four files in yomework ‘blog’ directory: Please provide the value corresponding to the “answer” key without the surrounding quotes from the document returned.

Web applications development : MongoDB for developers 4/8. Performance. Homeworks

In this homework assignment you will be adding some indexes to the post collection to make the blog fast. The blog home page The page that displays blog posts by tag http: We have removed parts of the code that uses the Node.

We are also providing a patriotic if you are an American data set for the blog. Do not include the surrounding quotes in providing your answer. In this problem you will analyze a profile log taken from a mongoDB instance.

homework 4.4 mongodb

From the top of this page, there was one additional program homeworkk should have been downloaded: The blog has been enhanced so that it can also display the top 10 most recent posts by tag.