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Your organization is currently updating an existing corporate application that is running in another public cloud to access managed database services in Google Cloud. The application will remain in the other public cloud while the database is migrated to Google Cloud. You want to follow Google-recommended practices for authentication. You need to minimize user disruption during the migration. What should you do?
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Question 114 - Professional Cloud Database Engineer discussion

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You want to migrate your on-premises PostgreSQL database to Compute Engine. You need to migrate this database with the minimum downtime possible. What should you do?

A.
Perform a full backup of your on-premises PostgreSQL, and then, in the migration window, perform an incremental backup.
Answers
A.
Perform a full backup of your on-premises PostgreSQL, and then, in the migration window, perform an incremental backup.
B.
Create a read replica on Cloud SQL, and then promote it to a read/write standalone instance.
Answers
B.
Create a read replica on Cloud SQL, and then promote it to a read/write standalone instance.
C.
Use Database Migration Service to migrate your database.
Answers
C.
Use Database Migration Service to migrate your database.
D.
Create a hot standby on Compute Engine, and use PgBouncer to switch over the connections.
Answers
D.
Create a hot standby on Compute Engine, and use PgBouncer to switch over the connections.
Suggested answer: D

Explanation:

PgBouncer maintains a pool for connections for each database and user combination. PgBouncer either creates a new database connection for a client or reuses an existing connection for the same user and database. + PgBouncer is a simple PostgreSQL connection pool that allows for several thousand connections at a time. Using Kubernetes Engine to run a Helm Chart w/ PgBouncer based on the great article from futuretech-industries, we were able to set up an easily deployable system to get the most out of our CloudSQL DBs without breaking the bank. https://medium.com/google-cloud/increasing-cloud-sql-postgresql-max-connections-w-pgbouncer-kubernetes-engine-49b0b2894820#:~:text=That%20is%20where,breaking%20the%20bank.

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asked 18/09/2024
ASDASDASDA SDASD
36 questions
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