MONGODB DBA HOMEWORK 5.2

So, let’s look at the options they give us: You would like to ensure availability of writes during server maintenance. To allow writes, the remaining members must have a majority to elect a primary. First, a server is brought down for maintenance once a month. Add another data bearing node 5. Parana Impact provides you the Email List that you are exactly looking for.

They are running a single replica set with two members. MongoDB Training in Irving. They also explain that should they use a readPreference of “primaryPreferred”, that the application can read from the one remaining server during server maintenance. First, a server is brought down for maintenance once a month. Not that it matters, but Option 3 doesn’t satisfy the first requirement either. You would like to ensure availability of writes during server maintenance. Add an arbiter 2.

When this is done, the replica set primary steps down, and the set cannot accept writes.

mongodb dba homework 5.2

Not that it matters, but Option 3 doesn’t satisfy the first requirement either. They also explain that should they use a readPreference of “primaryPreferred”, that the application can read from the one remaining server eba server maintenance. Increase the priority of the first server from one to two 4.

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You would like to ensure availability of writes during server maintenance. Add two data bearing members plus one arbiter 3.

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Thanks for sharing such great information. We have worked with many organizations of all the hommework. Second, you also want to ensure that all writes can be replicated during server maintenance. To allow writes, the remaining members must have a majority to elect a primary. Check all that apply. They are running a single replica set with two members. You have just been hired at a new company with an existing MongoDB deployment.

To allow writes to be replicated, there needs to be a data-bearing primary with a data-bearing secondary to replicate to. Here is the question as written in May Add two arbiters Options 1, 3, and 5 do not add a data-bearing member, therefore we can ignore them as they do not satisfy the second requirement: Thanks for sharing nice information.

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Big Data Hadoop Online Course. MongoDB Training in Irving. Posted by SiteAdmin at First, a server is brought down for maintenance once a month.

mongodb dba homework 5.2

When you ask why, they explain that this ensures that the data will be durable in the face of the failure of either server. Add another data bearing node 5.

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Our main focus is customer satisfaction. Add an arbiter 2.

Teju Teju 30 October at Parana Impact provides you the Email List that you are exactly looking for. The parts I’ve homewprk are actually the only bits we need to consider. Note that there are two requirements in the question. Really nice blog post. So we know we need to add a member to our deployment. Anuj Singh 4 January at It’s maybe a bit of a trick question as the important thing is to relate the requirements to the particular set of options they offer in the answers.

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One real-time data can change your entire business for good. Not that hard really, we just need to remember that arbiters are only useful in elections. It was nice to read this Blog.