I have enabled AWS S3 replication in an account and I want to replicate the same S3 data to another account and it all works fine. But I don't want to use S3 versioning because of its additional cost.
So is there any other way to accommodate this scenario?
The automated Same Region Replication(SRR) and Cross Region Replication(CRR) requires versioning to be activated due to the way that data is replicated between S3 buckets. For example, a new version of an object might be uploaded while a bucket is still being replicated, which can lead to problems without having separate versions.
If you do not wish to retain other versions, you can configure Amazon S3 Lifecycle Rules to expire (delete) older versions.
An alternative method would be to run the AWS CLI aws s3 sync command at regular intervals to copy the data between buckets. This command would need to be run on an Amazon EC2 instance or even your own computer. It could be triggered by a cron schedule (Linux) or a Schedule Task (Windows).
Related
I have a use case where we want to transfer data between AWS Accounts. I want to use the S3 Replication/S3 Batch Ops/DataSync provided they can ensure the data integrity so that I don't have to use additional checks after data is transferred.
I have used S3 document sync across two different AWS accounts via AWS CLI. My use case was to push data from one bucket to another bucket in different AWS accounts so I used AWS CLI command.
I was satisfied with the Data Integrity in this process. Next time when I used to run the sync, it used to transfer only newly created item in source S3 bucket.
Im trying to have a replica of my s3 bucket in a local folder. it should be updated when a change occurs on the bucket.
You can use the aws cli s3 sync command to copy ('synchronize') files from an Amazon S3 bucket to a local drive.
To have it update frequently, you could schedule it as a Windows Scheduled Tasks. Please note that it will be making frequent calls to AWS, which will incur API charges ($0.005 per 1000 requests).
Alternatively, you could use utilities that 'mount' an Amazon S3 bucket as a drive (Tntdrive, Cloudberry, Mountain Duck, etc). I'm not sure how they detect changes -- they possibly create a 'virtual drive' where the data is not actually downloaded until it is accessed.
You can use rclone and Winfsp to mount S3 as a drive.
Though this might not be a 'mount' in traditional terms.
You will need to setup a task scheduler for a continuous sync.
Example : https://blog.spikeseed.cloud/mount-s3-as-a-disk/
I want to download million of files from S3 bucket which will take more than a week to be downloaded one by one - any way/ any command to download those files in parallel using shell script ?
Thanks,
AWS CLI
You can certainly issue GetObject requests in parallel. In fact, the AWS Command-Line Interface (CLI) does exactly that when transferring files, so that it can take advantage of available bandwidth. The aws s3 sync command will transfer the content in parallel.
See: AWS CLI S3 Configuration
If your bucket has a large number of objects, it can take a long time to list the contents of the bucket. Therefore, you might want to sync the bucket by prefix (folder) rather than trying it all at once.
AWS DataSync
You might instead want to use AWS DataSync:
AWS DataSync is an online data transfer service that simplifies, automates, and accelerates copying large amounts of data to and from AWS storage services over the internet or AWS Direct Connect... Move active datasets rapidly over the network into Amazon S3, Amazon EFS, or Amazon FSx for Windows File Server. DataSync includes automatic encryption and data integrity validation to help make sure that your data arrives securely, intact, and ready to use.
DataSync uses a protocol that takes full advantage of available bandwidth and will manage the parallel downloading of content. A fee of $0.0125 per GB applies.
AWS Snowball
Another option is to use AWS Snowcone (8TB) or AWS Snowball (50TB or 80TB), which are physical devices that you can pre-load with content from S3 and have it shipped to your location. You then connect it to your network and download the data. (It works in reverse too, for uploading bulk data to Amazon S3).
I have the following currently created in AWS us-east-1 region and per the request of our AWS architect I need to move it all to the us-east-2, completely, and continue developing in us-east-2 only. What are the easiest and least work and coding options (as this is a one-time deal) to move?
S3 bucket with a ton of folders and files.
Lambda function.
AWS Glue database with a ton of crawlers.
AWS Athena with a ton of tables.
Thank you so much for taking a look at my little challenge :)
There is no easy answer for your situation. There are no simple ways to migrate resources between regions.
Amazon S3 bucket
You can certainly create another bucket and then copy the content across, either using the AWS Command-Line Interface (CLI) aws s3 sync command or, for huge number of files, use S3DistCp running under Amazon EMR.
If there are previous Versions of objects in the bucket, it's not easy to replicate them. Hopefully you have Versioning turned off.
Also, it isn't easy to get the same bucket name in the other region. Hopefully you will be allowed to use a different bucket name. Otherwise, you'd need to move the data elsewhere, delete the bucket, wait a day, create the same-named bucket in another region, then copy the data across.
AWS Lambda function
If it's just a small number of functions, you could simply recreate them in the other region. If the code is stored in an Amazon S3 bucket, you'll need to move the code to a bucket in the new region.
AWS Glue
Not sure about this one. If you're moving the data files, you'll need to recreate the database anyway. You'll probably need to create new jobs in the new region (but I'm not that familiar with Glue).
Amazon Athena
If your data is moving, you'll need to recreate the tables anyway. You can use the Athena interface to show the DDL commands required to recreate a table. Then, run those commands in the new region, pointing to the new S3 bucket.
AWS Support
If this is an important system for your company, it would be prudent to subscribe to AWS Support. They can provide advice and guidance for these types of situations, and might even have some tools that can assist with a migration. The cost of support would be minor compared to the savings in your time and effort.
Is it possible for you to create CloudFormation stacks (from existing resources) using the console, then copying the contents of those stacks and run them in the other region (replacing values where they need to be).
See this link: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/resource-import-new-stack.html
I am trying to set up cross region replication so that my original file will be replicated to two different regions. Right now, I can only get it to replicate to one other region.
For example, my files are on US Standard. When a file is uploaded it is replicated from US Standard to US West 2. I would also like for that file to be replicated to US West 1.
Is there a way to do this?
It appears the Cross-Region Replication in Amazon S3 cannot be chained. Therefore, it cannot be used to replicate from Bucket A to Bucket B to Bucket C.
An alternative would be to use the AWS Command-Line Interface (CLI) to synchronise between buckets, eg:
aws s3 sync s3://bucket1 s3://bucket2
aws s3 sync s3://bucket1 s3://bucket3
The sync command only copies new and changed files. Data is transferred directly between the Amazon S3 buckets, even if they are in different regions -- no data is downloaded/uploaded to your own computer.
So, put these commands in a cron job or a Scheduled Task to run once an hour and the buckets will nicely replicate!
See: AWS CLI S3 sync command documentation