I apologize if this is too broad, but I am very new to AWS and I have a specific task I want to do but I can't seem to find any resources to explain how to do it.
I have a Java application that at a high level manages data, and I want that application to be able to store and retrieve information from Amazon Aurora. The simplest task I want to achieve is to be able to run the query "SELECT * FROM Table1" (where Table1 is some example table name in Aurora) from Java. I feel like I'm missing something fundamental about how AWS works, because I've thus far been drowning in a sea of links to AWS SDKs, none of which seem to be relevant to this task.
If anyone could provide some concrete information toward how I could achieve this task, what I'm missing about AWS, etc, I would really appreciate it. Thank you for your time.
You don't use the AWS SDK to query an RDS database. The API/SDK is for managing the servers themselves, not for accessing the RDBMS software running on the servers. You would connect to AWS Aurora via Java just like you would connect to any other MySQL database (or PostgreSQL if you are using that version of Aurora), via the JDBC driver. There's nothing AWS specific about that, other than making sure your code is running from a location that has access to the RDS instance.
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I am new in the AWS Cloud services.
I am doing the learning project to better understand AWS services.
I assigned a project to prepare a new environment in the cloud, to which my team will later migrate their applications. The Stakeholders have come up with some Technical and Business requirements:
Due to the budget issue, the company cannot afford a dedicated DB engineer, so they are willing to outsource the DB management from a Cloud provider, to store and maintain the customer information received by PHP application. You must pick the right solution from AWS, which should be a Platform as a Service.It should also provide high availability, patching and back-ups. (hint: Create DB subnet group)
Which AWS Cloud service I could use to implement this requirement?
Please let me know if I need to provide more details.
Thank you in advance.
You can utilize the Database as a Service(DaaS) options from AWS. There are plenty of choices depending on the data and its requirements. Here is a snapshot from the official documentation:
Analyze your requirements and learn about the above choices to make an educated decision.
If you are looking for a relation database,
Its amazon RDS, A PaaS service provided my amazon web services. it is a highly available, scalable relational database solution service that you can setup and run in the cloud.
In regards to backups, you can enable automated daily backups and also make use of the backup retention policy to define the number of days you want to keep the backups.
Amazon RDS supports different relational databases such as mysql, postgres, oracle ,etc
If you are looking for a document database,
you got some options mainly DynamoDB and new DocumentDb solution.
Can some one please advise the steps required for migrating a web application which is currently running on tomcat server at onpremise to AWS ec2 instance. I understand this is not a straight forward and requires some detailed process.
The code is wrriten in Java and database used as oracle.
So it would be helpfull if someone can suggest me any relavent document or any website which gives some demo to refer me and proceed with this scenario.
If it's a personal project then I would recommend Lightsail as the simplest way to deploy existing Java application.
For a database a small instance of MySQL or if relational database is not needed then a document database like DynamoDB. https://aws.amazon.com/products/databases/?nc2=h_m1
There are multiple choices one how to migrate a Java application to AWS.
You could potentially use existing AWS services like:
Lightsail - https://aws.amazon.com/lightsail/
Beanstock - https://aws.amazon.com/elasticbeanstalk/
or
EC2 instance and install Tomcat manually
Use ECS with Docker https://aws.amazon.com/getting-started/tutorials/deploy-docker-containers/?nc2=type_a
As for Database solution Oracle is an option but quite expensive one.
When moving to AWS it's better to use one of the RDS managed databases like MySQL, Postgress or more expensive like Aurora.
In order to propose an architecture some details would be needed on predicted load, the size of the application and volume of data. Is the product regional or global, are there any additional issues that need to be addressed while moving to a cloud (performance, availability etc), how users are authenticated (are any other services needed).
I am trying to understand exactly what a "Database" is within Amazon Lightsail. I've attempted to research this as much as possible through Google and various forums, but information on this particular issue seems limited.
My impression (and hope) is that a "Database" as far as Lightsail is concerned is actually a database instance, or in other words a virtual machine running a database server, that once created is able to be used to hold multiple databases.
I tried to test this theory by creating a Database instance on lightsail, then connecting to it using MySQL Workbench, and running a "CREATE test_db" query. From what I could tell, this seemed to work, but it was the first time I'd used Workbench, so was not entirely convinced I'd created a database within my instance.
Can anyone please offer some clarity on this matter?
A Lightsail database instance is a MySQL server running in Amazon RDS. You have exclusive use of this server -- is isn't shared. You can create as many databases ("schemas") on it as you want using standard queries.
I have not used AWS yet and want to get to kinda assessment about its data center options.
My guess is that you can have a MySQL or SQL Server on an EC2 virtual box.
If DBS is Amazon data specific service, what are the differences between these two approaches:
Using DBS vs DB on EC2?
Check out this related question first.
According to Amazon's documentation:
Connect to your DB Instance using your favorite database tool or programming language. Since you have direct access to a native MySQL, Oracle or SQL Server database engine, most tools designed for these engines should work unmodified with Amazon RDS.
Basically, going the EC2 route requires a lot more maintenance in the long run. If you're using Amazon's services, and you need any one of those kind of databases, you might as well use RDS.
The startup I'm working for is constructing a website, and we want to use AWS to run and host our site and the accompanying mysql database. Apparently when you terminate an AWS instance, any data stored on it is lost, so we would be keeping the database on the EBS system. The thing I can't figure out, though, is how to interface things running on these two different platforms. How do I tell the web server where the database is?
Sorry if this is a really noob question. Still trying to grasp how this whole cloud service works.
If I am reading correct, your DB is on the EBS mounted on the same machine, if that is the case, you have to make sure you tell MySQL (my.cnf) to point it's datadir to EBS directory.
Rest is as usual. Your host is localhost and your user credentials.
BTW, FYI, there is one more option from Amazon for DB that is RDS (http://aws.amazon.com/rds/) which provides lots of functionality + advantages, take a look at it.