Amazon S3 Batch Operations | Overview & Performance.

 

Amazon S3 Batch Operations – Overview & Performance

Amazon S3 Batch Operations let twtech to perform actions on millions or billions of S3 objects with a single request. It’s ideal for large-scale automation, reducing the complexity and cost of running repetitive tasks across your data at scale.

 The concept:  S3 Batch Operations

S3 Batch Operations is a managed feature that lets you perform operations like:

Operation Type	Description
PUT Object Tagging	Add or change tags on objects.
COPY	Copy objects within/between buckets.
Invoke AWS Lambda	Run custom code on each object.
Restore	Restore Glacier/Deep Archive objects.
PUT Object ACL	Change access control lists (ACLs).
PUT Object Legal Hold	Apply legal hold to objects.
Initiate Multipart Upload	Prepares large files for upload.

 How S3 Batch Operations Works

1. Manifest File
• A CSV or JSON file in S3 listing the target objects (bucket, key, version).
• Can be generated manually or using S3 Inventory.
2. Batch Job
• twtech configure the job (action, IAM role, completion report, etc.).
• S3 reads the manifest and executes the job.
3. Monitoring & Reporting
• twtech can track progress via the S3 console or AWS CLI.
• Completion reports can include success/failure logs.

 Key Features

Feature	Benefit
Scalable	Handles billions of objects.
Eventual Execution	Jobs may take time depending on size but are reliable.
Retries & Logging	Failed operations are retried and logged.
Custom Processing	Use AWS Lambda for filtering, format changes, tagging logic, etc.
No Code Required	GUI-driven or CLI/SDK managed.

 Example: Create a Batch Job to Add Tags

# bash

aws s3control create-job \

  --account-id 12345xxxxxxx \

  --operation '{"S3PutObjectTagging":{"TagSet":[{"Key":"Processed","Value":"True"}]}}' \

  --report '{"Bucket":"arn:aws:s3:::twtech-report-bucket","Format":"Report_CSV_20180820","Enabled":true}' \

  --manifest '{"Spec":{"Format":"S3BatchOperations_CSV_20180820","Fields":["twtect-s3bucket","Key"]},"Location":{"ObjectArn":"arn:aws:s3:::twtech-batch-job/manifest.csv","ETag":"<ETag>"}}' \

  --priority 1 \

  --role-arn arn:aws:iam::123456xxxxxxx:role/S3BatchOpsRole \

  --region us-east-2

 Performance Considerations

Metric	Details
Scalability	Petabyte-scale, billions of objects.
Concurrency	Automatically managed by AWS.
Throughput	Varies by operation (e.g., Lambda concurrency, S3 limits).
Latency	Jobs may take minutes to hours based on size.
Billing	Charged per object processed, and for requests triggered (e.g., Lambda invocations, PUTs).

twtech Best Practices

• Use S3 Inventory to generate large object manifests.
• Limit Lambda payload sizes and use streaming for large objects.
• Test jobs on small samples before full-scale runs.
• Always use completion reports to audit job results.

Assign appropriate IAM roles and permissions to batch jobs