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You've recently taken over support for an Azure Database for PostgreSQL database in your company. You've noticed that the amount of storage required for the database appears to be growing at a rate greater than you would expect. What should you do to investigate? Check the server parameters to ensure autovacuum is switched OFF.Prevent users from adding more data to the database until the problem has been solved.Run a SELECT query to find dead rows that are no longer needed in the database.

Question

You've recently taken over support for an Azure Database for PostgreSQL database in your company. You've noticed that the amount of storage required for the database appears to be growing at a rate greater than you would expect. What should you do to investigate? Check the server parameters to ensure autovacuum is switched OFF.Prevent users from adding more data to the database until the problem has been solved.Run a SELECT query to find dead rows that are no longer needed in the database.

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Solution

To investigate the issue of the growing storage requirement for the Azure Database for PostgreSQL, you should follow these steps:

  1. Check the server parameters: Verify if the autovacuum feature is switched OFF. Autovacuum is responsible for reclaiming space occupied by dead rows in the database. If it is turned off, it could lead to the accumulation of unnecessary data and cause the storage to grow rapidly.

  2. Prevent users from adding more data: Temporarily restrict users from adding additional data to the database until the problem is resolved. This will help prevent further growth in storage and allow you to focus on investigating the root cause.

  3. Run a SELECT query to find dead rows: Execute a SELECT query to identify any dead rows that are no longer needed in the database. Dead rows are rows that have been marked for deletion but have not yet been reclaimed by autovacuum. By identifying and removing these dead rows, you can free up storage space and potentially reduce the growth rate.

By following these steps, you can investigate the issue of the growing storage requirement for the Azure Database for PostgreSQL and take appropriate actions to address the problem.

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