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Amazon S3 now supports conditional writes (amazon.com)
22 points by xyzzy_plugh 78 days ago | hide | past | favorite | 5 comments



most of the current systems that need a reliable managed service for distributed locking use dynamodb, are there any scenarios where s3 is preferrable than dynamodb for implementing such distributed locking?


Using only s3 would be simpler, less setup, less code, also less expensive


How is this priced? Is it Get + Put or only Put?


The article says 'To use conditional writes, you can add the HTTP if-none-match conditional header along with PutObject and CompleteMultipartUpload API requests.'


From the post:

> This feature is available at no additional charge in all AWS Regions, including the AWS GovCloud (US) Regions and the AWS China Regions.




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