HOMEWORK 6.1 MONGODB

As a check on your solution, Facebook had the largest funding round average. Which of the following statements are true about choosing and using a shard key? Now start three mongo instances as follows. Check all that apply. The minimum sensible number of voting nodes to a replica set is three. Sunday, March 12, [Solution] Week 6: Ankit Raina May 7, at 3:

On unix, this could be done as follows: Now start three mongo instances as follows. Failed with error ‘migration already in progress’, from s0 to s1 databases: Note that not all students in the same class have the same exact number of assessments. Type the validation code below. Sarath April 30, at You can change the shard key on a collection if you desire.

Also omit –fork and use start mongod with Windows compatible paths i. It has been tested under Pymongo 2. At this point, the replica set should be coming up. We will check that it works with validate. Which of the following statements are true about replication in MongoDB?

The minimum sensible number of voting nodes to a replica set is three.

Type the validation code below. On unix, this could be done as follows: You have really selected the suitable topic node.

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homework 6.1 mongodb

Create three directories for the three mongod processes. We will check that it works with validate.

In earlier versions of MongoDB, w: It has been tested under Pymongo 2. Let’s suppose you have a five member replica set and want to assure that writes are committed to the journal and are acknowledged by at least 3 nodes before you proceed forward.

MongoDB university mp chapter 6 homework – bigmongodb

Type the following commands into the mongo shell: To be clear, each student’s average should include only exams and homework grades. The output of sh.

homework 6.1 mongodb

Check all that apply. Changed in version 2. Newer Post Older Post Home. MongoDB can not enforce unique indexes on a sharded collection other than the shard key itself, or indexes prefixed by the shard key.

Validate connects to your local replica set and checks that it has three nodes. Homewogk is the easiest grader on campus?

AngularJS,JQuery,,C#,SQL Server: Homework MongoDB for .NET Developers

What would be the appropriate settings for w and j? Create three directories for the three mongod processes. Your task is to calculate the class with the best average student performance. Which of the following statements are true about replication in MongoDB? The browser is probably wrapping them visually. Which of the following statements are true about choosing and using a shard key?

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Ankit Raina .61 7, at 3: For companies in our collection founded in and having 5 or more rounds of funding, calculate the average amount raised in each round of funding.

MongoDB university m101p chapter 6 homework

This involves calculating an average for each student homeworkk each class of all non-quiz assessments and then averaging those numbers to get a class average. You can change the shard key on a collection if you desire. The oplog utilizes a capped collection. You have a sharded system with three shards and have sharded the collections “students” in the “school” database across those shards. MongoDB replication is synchronous.

In this homework you will build a small replica set on your own computer.