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Can you answer these questions?
View all unanswered questionsThese questions still don't have an answer
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Table primary key uniqueness across different / multi-region Amazon RDS postgres
I have an application that uses postgres database on one region (US West) containing several tables, one of which contains several hundred thousand records (let's call it "events" table with ...
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8
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AWS Cloudformation error while creating SNS subscription on loop
Below is my cloudformation snippet that creates a SNS topic along with the subscriptions to the SQS endpoint based on parameters file (paramters.json)
paramters.json
{
"Key" : "...
- 446
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8
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Execute/call stored procedure in on premise database using AWS Glue
I am trying to execute a stored procedure in an on premise database using AWS Glue.
How to run arbitrary / DDL SQL statements or stored procedures using AWS Glue
I have tried following these steps by ...
- 61
1
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0
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5
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Firehose data backup add newline after every record?
I have a kinesis streamer with EventBridge as the Producer and Firehose Data as the consumer. Firehose converts the event json in a parquet file, which can be queried in an athena table.
This is done ...
- 333
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5
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InvalidIdentityPoolConfigurationException error when adding Attributes for Access Control on an identity pool
I have an app built via AWS Amplify that uses Cognito to control my user base. I have created a custom attribute "myAttr" that I am using as a PoC.
I am now trying to add permissions to a ...
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View all bountied questionsThese questions have a bounty on them
0
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0
answers
28
views
+50
AWS API gateway with Python Websocket
I am trying to create a chat app using Flask Websocket hosted on EC2 and expose using API Gateway. My App has both HTTP as well as SocketIO connection. My request flow is Browser -> API Gateway -&...
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Recommended answers
View all recommended answersThese answers have been recommended
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votes
1
answer
10
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Seeking PHP Solution for Querying DynamoDB Accelerator (DAX) Without AWS SDK
I hope you are all doing well.
I am currently working on a project where we extensively use DynamoDB and are experiencing performance lags. We attempted to leverage DynamoDB Accelerator (DAX) to ...
Answer
Why not write a Lambda function in a language supported by DAX? Then your PHP application can invoke the function either directly (function URLs) or via API Gateway.
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How to provide AWS credentials in an android studio mobile app (kotlin)?
I have a mobile app that I am making in android studio and I want to send a message to an AWS SQS server when the user does something. However, I am running in to problems with giving credentials to ...
- 76.5k
Answer
Mobile apps should not have IAM User credentials because those credentials are persistent and can typically be extracted from the app's binary or in-memory footprint, and thus can be abused. Read ...
View answer
- 76.5k
-3
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S3 cross account (different tenants) (same region) replication, do buckets need to be publicly accessible? [closed]
We need to setup S3 bucket replication from a SaaS provider (in a different tenant and account, but same S3 region) to our S3 bucket to capture logs from the SaaS application.
We have a bucket policy ...
Answer
Accepted
You do not need to "open the bucket". The replication will be done across the AWS backplane. Since you are in the same AWS Region, nothing goes across the Internet. Regardless, your data is ...
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1
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How do I filter a query of an array of strings with a limit in DynamoDB pagination?
When combining Limit and Filter Expression in DynamoDB, the database first retrieves the first N items specified by Limit and then applies the Filter Expression to those items. It's important to note ...
Answer
We love hearing feedback on our documentation, please use the link at the bottom of any page you feel needs improvement. As for your use-case, a Scan with a filter is a highly discouraged access ...
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Is there we can ensure uniqueness in a non-key attribute for a given partition key in DynamoDB
Is there we can ensure uniqueness in a non-key attribute for a given partition key in DynamoDB.
For eg: We have person_id as the partition key and category#UUID as the sort key and we another ...
Answer
There is only one way to achieve this and it's by using a second table and Transactions, where the category#UUID is a partition key on the second table. Fully explained in this blog post.
See what's trending
View all trending questionsThese are the most active questions in AWS Collective
1109
votes
42
answers
896k
views
Downloading an entire S3 bucket?
I noticed that there does not seem to be an option to download an entire s3 bucket from the AWS Management Console.
Is there an easy way to grab everything in one of my buckets? I was thinking about ...
- 42k
998
votes
43
answers
730k
views
"UNPROTECTED PRIVATE KEY FILE!" Error using SSH into Amazon EC2 Instance (AWS) [closed]
I've created a new linux instance on Amazon EC2, and as part of that downloaded the .pem file to allow me to SSH in.
When I tried to ssh with:
ssh -i myfile.pem <public dns>
I got:
@@@@@@@@@@@@@...
- 24.6k
472
votes
37
answers
328k
views
How to get an AWS EC2 instance ID from within that EC2 instance?
How can I find out the instance id of an ec2 instance from within the ec2 instance?
- 1,157
305
votes
69
answers
586k
views
Amazon S3 - How to fix 'The request signature we calculated does not match the signature' error?
I have searched on the web for over two days now, and probably have looked through most of the online documented scenarios and workarounds, but nothing worked for me so far.
I am on AWS SDK for PHP V2....
- 829
545
votes
23
answers
613k
views
Change key pair for ec2 instance
How do I change the key pair for my ec2 instance in AWS management console? I can stop the instance, I can create new key pair, but I don't see any link to modify the instance's key pair.
- 69.8k
Learn something new
These are the most recent articles in AWS Collective
8
votes
483
views
2 minute read
Overcoming Front-End Back-End Coupling with AWS Event-Driven Architecture
introduction
As a developer, I've always been interested in event-driven architectures (EDAs) and how they can improve the overall performance and scalability of web applications. However, I never ...
- 910
15
votes
1k
views
5 minute read
Code Change Best Practices: Smaller Pull Requests for Smoother Merging
In today's fast-paced software development world, collaboration and efficiency are paramount. One of the key challenges new developers face is managing code changes effectively, particularly when it ...
- 6,867
6
votes
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1 minute read
Always-on access for your data in Amazon S3, using cross-Region replication and Multi-Region Access Points (MRAP)
To improve durability of your data in the cloud, you should replicate it to multiple locations. For data in Amazon S3, it is automatically stored across multiple devices spanning a minimum of three ...
- 1,085
6
votes
1k
views
3 minute read
Local development, testing, and debugging of serverless applications defined in Terraform using AWS SAM CLI
One question we hear from developers using Terraform and AWS Lambda functions is how to locally test the Lambda function. Here’s a great example — I have a simple terraform file with a Lambda function....
- 159
12
votes
3k
views
6 minute read
Deploying a Kafka Connect connector on Amazon MSK Connect using Terraform
Apache Kafka has been growing in popularity as the de facto way to share streams of events with different systems. While Kafka itself provides the perfect durable log-based storage for events; Kafka ...
- 1,361
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