I'm uploading images/videos to S3 using their API and putObject.
When I use upload of com.amazonaws.services.s3.transfer to post the same PutObjectRequest twice, will the object be overwritten by the latest one ? Or aws will save the object twice with different versionID?
I didn't find the answer in Aws official document. I've checked SO but it's quite an old question and I don't know how the current version is.
Yes, by default the versioning on S3 buckets is disabled.
Related
I am very new to AWS technology.
I want to add some files to an existing S3 bucket without overwriting existing objects. I am using Spring Boot technology for my project.
Can anyone please suggest how can we add/upload multiple files without overwriting existing objects?
AWS S3 supports object versioning in the bucket, in which for use case of uploading same file, S3 will keep all files within the bucket with different version rather than overwriting it.
This can be configured using AWS Console or CLI to enable the Versioning feature. You may want to refer this link for more info.
You probably already found an answer to this, but if you're using the CDK or the CLI you can specify a destinationKeyPrefix. If you want multiple folders in an S3, which was my case, the folder name will be your destinationKeyPrefix.
Is there a command in AWS CLI to restore Versioning files?
i've been developing a web server using Django
someday i found there was deleted image files randomly in S3
i think Django sorl-thumbnail will delete it
and tried to fix it but it failed
So I thought of temporary solution.
AWS S3 is delivering versioning. i use it to recover manually every day.
This is very Annoying to do, so I am writing a script.
But I could not find a way to restore a file with a delete marker.
Does anyone know the situation above?
thanks you!
Recovering of objects is a bit tricky in s3. As per AWS documentation http://docs.aws.amazon.com/AmazonS3/latest/dev/DeletingObjects.html
When you delete an object from a versioned bucket, S3 creates a new object called a delete marker, which has its own, new version ID.
If you delete that "version" of the object, it will restore your object's visibility.
You can use this command
aws s3api delete-object --bucket <bucket> --key <key> --version-id <version_id_of_delete_marker>
If I use PutObject in the Amazon S3 SDK is there a way to tell if the object in the bucket pre-existed (was overwritten) without fetching it first? There is the x-amz-version-id header but thats always the latest version, while I want the previous version instead.
I have a NAS drive Lenovo® ix2-dl that I set up to back up to AWS S3. It connected fine. But for some reason it only uploads 5% of my Lenovo® ix2-dl Data. How can I get it to upload my whole Lenovo® ix2-dl Data?
I updated my NAS to the latest Firmware 4.1.218.34037.
I recently had issues with the s3 backup feature, where the uploads simply stopped working. No errors, nothing in logs to indicate an issue. I tested by AWS S3 access key and secret with another method and was able to upload files just fine.
To resolve the issue, i had to create a new AWS S3 bucket, then go into the S3 setup of Lenovo and provide the required info. I think what made this work for me, was i made sure to not have anything in the bucket name other than letters and numbers. My bucket name before was similar to this lastname.family.pics, my new bucket which works is similar to this lastname123.
Hope this helps, this feature has worked fine for a long time, perhaps an update came down which has different requirements for the api.
Reduced Redundancy Storage (RRS) is a new service from Amazon that is a bit cheaper than S3 because there is less redundancy.
However, I can not find any information on how to specify that my data should use RRS rather than standard S3. In fact, there doesn't seem to be any website interface for an S3 services. If I log into AWS, there are only options for EC2, Elastic MapReduce, CloudFront and RDS, none of which I use.
I know this question is old but it's worth mentioning that Amazon's interface for S3 now has an option to change your files (recursively) to RRS. Select a folder and right click on it, under properties change the storage to RRS.
You can use S3 Browser to switch to Reduced Redundancy Storage. It allows you to view/edit storage class for a single file or for multiple files. Moreover, you can configure default storage class for the bucket, so S3 Browser will automatically apply predefined storage class for all new files you are uploading through S3 Browser.
If you are using S3 Browser to work with RRS, the following article may be helpful:
Working with Amazon S3 Reduced Redundancy Storage (RRS)
Note, Storage Class preferences are stored in a local settings file.Other s3 applications are using their own way to store bucket defaults and currently there is not single standard on this.
All objects in Amazon S3 have a
storage class setting. The default
setting is STANDARD. You can use an
optional header on a PUT request to
specify the setting
REDUCED_REDUNDANCY.
From: http://aws.amazon.com/s3/faqs/#How_do_I_specify_that_I_want_to_store_my_data_using_RRS
If you are looking for a way to convert existing data in amazon s3, you can use a fairly recent version of boto and a script I wrote. Details explained on my blog:
http://www.bryceboe.com/2010/07/02/amazon-s3-convert-objects-to-reduced-redundancy-storage/
If you're on a mac, the free cyberduck ftp program will do it. Log into S3, right-click on the bucket (or folder, or file) and choose 'info' and change the storage class from 'unknown' or 'regular s3 storage' to 'reduced redundancy storage'. Took it about 2 hours to change 30,000 files for me...
If you use boto, you can do this:
key.change_storage_class('REDUCED_REDUNDANCY')