Graph/9c88c6cf-4686-4877-9fd2-838f0e59452a

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Cloud Storage

9c88c6cf-4686-4877-9fd2-838f0e59452a

Cloud Storage

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Updated4/30/2026

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RELATES_TOProblem

I want to limit Textract to only be able to access this bucket — Lambda which has an IAM role that allows read and write access from a specific S3 bucket. Outcome: Is there anyway to limit Textract permissions to just this bucket.

IMPLEMENTATION_OFComponent

aws

PERTAIN_TOSolution

Set origin to process.env.CLIENT_URL or http://localhost:3000 in corsOptions

PERTAIN_TORootCause

No 'Access-Control-Allow-Origin' header is present on the requested resource — send a POST request from the frontend to the backend to handle payments. Tension: Could Vercel’s deployment have specific CORS settings that I need to account for? Outcome: You need to add the hostname and http protocol from Vercel to your CORS `allowedOrigins` array.

PERTAIN_TOSolution

Create a POST request to generate a signedUrl on the server — Send that URL to the client and POST the upload form with image to the S3 bucket. Tension: bypassing the server. Outcome: With that url you can POST directly to S3.

PERTAIN_TOProblem

one of my requests to retrieve a photo fails with a 400: BAD_REQUEST error. Code: INVALID_IMAGE_OPTIMIZE_REQUEST — When I execute from my production server. Tension: In staging, the request successfully retrieves this image on the production S3, and production is able to retrieve an image from the staging S3. Outcome: The way I optimized the images was by using an absolute path.

PERTAIN_TOProblem

The job is taking approximately 4 hours to complete — AWS Glue job that processes thousands of small JSON files from S3. Tension: which is unacceptable for our use case. Outcome: The job processes the files but is extremely slow.

PERTAIN_TORootCause

The AWS S3 bucket policy was denying access to presigned URLs older than a certain age. — Azure's request may have triggered that policy, even though the URL worked in a browser.

PERTAIN_TOProblem

fails with a 403 Forbidden error and the message CannotVerifyCopySource — I'm trying to copy a CSV file from an AWS S3 bucket to Azure Blob Storage using AzCopy. Tension: The command executes but fails.

PERTAIN_TOSolution

Use a clean percent-encoded presigned URL and allow access via pre-signed URLs in the S3 bucket policy

PERTAIN_TOSolution

As of 5/8/2025, the only known workaround is to download the file and upload it using LocalBlob. Tension: the only known workaround. Outcome: download the file and upload it using LocalBlob.

PERTAIN_TOProblem

I see a folder structured as follows: xxxxxxxecc-manifest.csv xxxxxxxecc.metadata folder_xxxxxxx/ with 3 xxxxxx.gz files — When creating a table in AWS - Athena with a CTAS statement. Tension: I'm trying to understand how the table is stored in S3 and how I can convert the output to CSV. Outcome: By default, when creating a table in Athena the table type is set to `HIVE`.

PERTAIN_TOSolution

The easiest way to export Athena queries as CSV would be from the console editor. — Run your query, and then from the Recent queries tab, select the query execution. Tension: This will download a CSV file. Outcome: click Download results.

PERTAIN_TOProblem

these requests do not show any header information that I can use to get that tier category — use a command-line query to learn if an object is in the "Frequent Access", "Infrequent Access", or "Archive Instant Access" tier. Tension: Is there another CLI option for getting this information? Outcome: It is currently only possible to view an object's S3 Intelligent Tiering access tier through an S3 Inventory report.

PERTAIN_TOSolution

view an object's S3 Intelligent Tiering access tier through an S3 Inventory report — Configure S3 Inventory. Tension: This can be enabled on a bucket or prefix level and is generated on a daily or weekly frequency. Outcome: download the file from the S3 Inventory output location and parse if locally or query it via Athena.

PERTAIN_TOProblem

I am using AWS SDK to generate a presigned S3 object URL and sending it as a mail notification. Tension: Even though I am setting the expiration time to 2 days.

PERTAIN_TOSolution

It is also only possible to create presigned URLs with expiration times greater than 36 hours — by using IAM users with an access and secret key.

PERTAIN_TOProblem

Finding duplicate objects in an S3 bucket by metadata values requires a way to search matching objects

PERTAIN_TOSolution

Use S3 Metadata tables and query e_tag with Athena or another Iceberg-compatible tool to locate duplicate objects

PERTAIN_TOProblem

Unable to inject and configure Aws\S3\S3Client as a Symfony service

PERTAIN_TOSolution

Use a Flysystem storage abstraction instead of injecting S3Client directly

PERTAIN_TOSolution

I made a proxy object — using the magic method `__call` in order to forward any method call towards to actual S3. Tension: I failed. Outcome: Then upon services.yaml you can do.

PERTAIN_TOProblem

the question is that can I safely remove the task role and replace it with a new role containing the amazonS3FullAccess — I am running a AWS ECS faragate task. Tension: I understand that the task execution role must contain the AmazonECSTaskExecutionRolePolicy to function. Outcome: Yes you can remove `AmazonECSTaskExecutionRolePolicy` from `Task IAM role` and add s3 permissions.

PERTAIN_TOSolution

just `amazonS3FullAccess` — By new role you mean `Task IAM Role` and not `Task execution IAM role`. Tension: Just S3FullAcess is too permissive (for production env). Outcome: Yes you can remove `AmazonECSTaskExecutionRolePolicy` from `Task IAM role` and add s3 permissions.

PERTAIN_TOSolution

`aws s3 cp --recursive s3:///` — AWS CLI copy local file to S3 cloud giving errors. Outcome: `aws s3 cp --recursive s3:///`.

PERTAIN_TORootCause

the entire CSV file is being written to `/tmp` before being read back for upload — Since the entire CSV file is being written to `/tmp` before being read back for upload. Tension: there is a possibility that the temp storage is getting exceeded. Outcome: Lambda gives you 512 MB of storage but it can go upto 10 GB now.

PERTAIN_TOProblem

while running an AWS Lambda function. Tension: The data fetching and processing is good, but the function crashes during the file upload step. Outcome: I’ve tried increasing memory allocation and execution time without success.

PERTAIN_TOSolution

Have you checked what your csv file sizes are? — By default lambda gives you 512 MB of storage but it can go upto 10 GB now. Tension: there is a possibility that the temp storage is getting exceeded. Outcome: Lambda Ephemeral Storage Update.

PERTAIN_TOSolution

Be sure to print the bucket name before calling the SDK — before calling the SDK. Tension: to be sure that 'the resource' to which access is denied is as expected. Outcome: the AWS error message is therefore correct.

PERTAIN_TORootCause

You don't have define the correct endpoint in your bucket S3 in your code. Tension: The bucket you are attempting to access must be addressed using the specified endpoint. Outcome: Use the region obtained from the command.

PERTAIN_TOProblem

The bucket you are attempting to access must be addressed using the specified endpoint. Tension: Status Code: 301.

PERTAIN_TOSolution

Please modify to this : — S3Client.builder(). Tension: region(Region.EU_CENTRAL_1). Outcome: region(Region.of("eu-west-1")) // Use the region obtained from the command.

Snowpipe will not pick up files that have been modified before 7 days if you refresh the pipe. — I tried building a Snowpipe on top of the s3 bucket. Tension: Therefore, I resorted to bulk loading the files into Snowflake using the COPY INTO statement below:.

PERTAIN_TOSolution

Using a larger warehouse (large, x-large) should parallelize the bulk loading operation. — The X-SMALL warehouse has limited computing capacity. Tension: a limited number of files are ingested concurrently. Outcome: Using a larger warehouse (large, x-large) should parallelize the bulk loading operation.

PERTAIN_TOSolution

In Snowflake docs, there is a step to load history using bulk load. — Regarding why you cannot load the historical files using SnowPipe. Tension: Snowflake doesn't have information on files created before SQS notifications are made. Outcome: Please refer to this docs https://docs.snowflake.com/en/user-guide/data-load-snowpipe-auto-s3#step-5-load-historical-files.

PERTAIN_TOProblem

not able to find New line delimiter enabling option — In the firehose stream with S3 as the destination. Tension: what is the terraform equivalent parameter for enabling "New line delimiter". Outcome: For Terraform in HCL, this would be:.

PERTAIN_TOSolution

"ParameterName": "Delimiter", "ParameterValue": "\n". Tension: what is the terraform equivalent parameter for enabling "New line delimiter". Outcome: parameter_value = "\\n".

PERTAIN_TOSolution

AWS provides helpful debug information in its responses to unsuccessful signing requests — stop httr2 throwing an error, so you can see the response content. Tension: I would try the following to stop httr2 throwing an error. Outcome: you can see the response content.

PERTAIN_TOSolution

I wrote (borrowed) the following code. Tension: I couldn't get it to work with AWS s3. Outcome: successfully returns an AWS S3 object using header authentication.

PERTAIN_TOProblem

encrypted objects arn't replicated to the destination bucket after running terraform apply — setup S3 CRR between VA and OH. Tension: My code runs without any errors. Outcome: I had to add the destination key arn manually in the console.

PERTAIN_TOSolution

you need to add the kms key id — aws_s3_bucket_replication_configuration. Tension: encrypted objects aren't being replicated. Outcome: replica_kms_key_id is not specified in the replication configuration.

PERTAIN_TOProblem

I need to access certain S3 buckets programmatically using IAM Roles Anywhere — working on a Spring Boot backend service. Tension: I’m unsure how to use it to create IAM Roles Anywhere sessions and authenticate to access S3.

PERTAIN_TOSolution

After you get all the pieces assembled locally and you get the helper tool working from the command line to return temp creds.

PERTAIN_TOProblem

No AWS Credentials provided by TemporaryAWSCredentialsProvider — I am trying to run a Spark application on kubernetes. Tension: Access key, secret key or session token is unset.

PERTAIN_TOSolution

Try chaining with a WebIdentityTokenCredentialsProvider.

PERTAIN_TORootCause

The three properties above are static and can't be dynamicly changed based on metadata or whatnot — When the DMS Task's Endpoint is S3. Tension: Is it possible to include the task identifier as metadata of the data sent from source to target? Outcome: you can specify a bucket_folder, bucket_name as well as a cdc_path for ongoing replication.

PERTAIN_TOProblem

I want to use AWS DMS to connect to A, B, C databases and make full load/CDC into data lake bucket — different SQL databases from different departments in the org. Tension: how can I identify which files are coming from Source Database A, Source Database B and Source Database C. Outcome: I cannot find information about how to achieve what's in the title of this question.

PERTAIN_TOSolution

Simply create an endpoint for each of the source database target endpoints — When the DMS Task's Endpoint is S3. Outcome: name the bucket properties based on the source database.

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