I have created a AWS RDS Postgresql db instance in one VPC and I need to "move" it to another VPC.
I created a snapshot of the original db instance.
Re-created it in a new VPC (using terraform).
How can I retrieve one particular database from my initial db instance snapshot into the new DB Instance?
When you restore snapshot all databases are restored.
If you want to copy particular database, AWS service Database Migration Service can be used if postgres version is higher than 9.4.
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Source.PostgreSQL.html
If postgres version is lower, then only manual export/import of database can be used. Another instance where export files will be stored is needed.
Related
I am trying to set up a process in which a postgres staging database is populated with production data.
I have some working implementation with pg_dump and pg_restore but I was wondering if something in RDS itself is possible.
We have nightly snapshots on our production database. My goal would be RDS takes the latest database snapshot, migrates it to an existing database and does this on some scheduled cadence (1/week or something like that).
Is this possible to configure in the console? If not are there some some combination of lambda/cloud formation that can do this?
My goal would be RDS takes the latest database snapshot, migrates it to an existing database
RDS never loads a snapshot into an existing database. It always creates an entirely new database server/cluster from a snapshot.
Is this possible to configure in the console? If not are there some some combination of lambda/cloud formation that can do this?
You would have to write some code that creates a new staging database server from the production snapshot, and deletes your current server.
If you are using CloudFormation, then it could manage this for you if you specify the DBSnapshotIdentifier parameter. You would have to modify that parameter each week, and then update your CloudFormation stack.
I have an existing database instance in RDS. I'd like to take a snapshot of this database instance and restore it to a new Aurora cluster.
How can I do this? I would think this would be a common thing, but can't seem to figure out the steps to make this happen.
We have a production postgresql db available only in glue catalog. What's the best practices to ETL some tables in this database and load the data into another postgresql instance in the same aws account?
This production database is our transactional db and we don't need most of it's tables. We already have some glue ETL's creating tables in S3 (so accessible via Athena) but the goal here is to load into another postgresql instance.
Thanks
I have created a new Arora Serverless PostgreSQL cluster and I am trying to use the Query Editor.
What do I enter in the Database Name text field? Where do I find the name of the database? Is it the same are the cluster name?
Note: I have enables the Data API when I created the DB
Creation of database is an optional setting when you create your Aurora serverless:
If you haven't done that you have to create your db using traditional way.
This is the name of the database within the cluster, not any hostname or individual node. The target hosts are specified in Database instance or cluster label.
When you created your database cluster you could optionally specify a database that would be created on the host. This default database is viewable from within the console interface. Otherwise if you created the target database after the cluster launched, specify that database name instead.
I want to understand AWS Relational Database Service (RDS) and discover benefits from using it.
Why RDS is better than manually installed PostgreSQL database in EC2 instance?
Is it possible to connent existing database in EC2 instance with Amazon RDS?
How it really works?
How I should automation RDS?
When I want create new database in existing EC2 instance I can use Ansible in simply way. How I should connect my application with database which uses RDS ?
Thanks in advance!
I want to understand AWS Relational Database Service (RDS) and discover benefits from using it.
As already commented, read the docs and whitepapers.
Why RDS is better than manually installed PostgreSQL database in EC2 instance?
you can be sure it is well setup, you will get point in time recovery, backups and high availability. As well you can set it up yourself, however using RDS you have it all already configured.
Ifs it possible to connent existing database in EC2 instance with Amazon RDS? How it really works?
you don't have access to any underlying configuration, so nope, you cannot really connect ec2 database w/ rds (e. g. wal for wal streaming).
you still can use database migration tools to migrate all databases and updates to or from rds
How I should automation RDS? When I want create new database in existing EC2 instance I can use Ansible in simply way.
you can use a cloudformation template or cli commands
How I should connect my application with database which uses RDS ?
when you create a rds instance, you will define an admin user and receive a connection url
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_VPC.Scenarios.html#USER_VPC.Scenario1