I have S3 bucket which has thousands of folders having millions of files.
The problem is, many files has special characters like Comma, #, £ which is causing broken url.
Is there any way I can remove specific special characters from all the files?
I have tried using cli command aws s3 mv <source_file_name> <new_file_name>, But there also I am not able to access some of the files because of special characters.
Is there a way or script which can be useful?
I've been exploring AWS S3 Lifecycle techniques and found the best way to delete S3 files > 60 days old is to configure this through the GUI.
However, I'm not wanting to delete ALL files greater than 60 days. For example, I'd like to at least keep all HTML files inside the bucket that are greater than 60 days.
I've found that a prefix can be entered to limit the scope of the lifecycle to a specific file; however, this requires me to enter ALL files EXCEPT HTMLs. We have hundreds of files, so this will take forever.
I was wondering if anyone knew of an easier way? For example, I would like to just exclude all *.html from the lifecycle.
There is no way to exclude object from rules.
You can rearrange object in your bucket so rule can be applied to objects in specified prefix ("folder").
I have a s3 bucket which is mapped to a domian say xyz.com . When ever a user register on xyz.com a file is created and stored in s3 bucket. Now i have 1000 of files in s3 and I want to replace some text in those files. All files have common name in start ex abc-{rand}.txt
The safest way of doing this would be to regenerate them again through the same process you originally used.
Personally I would try to avoid find and replace as it could lead to modifying parts that you did not intend.
Run multiple generations in parallel and override the existing files. This will ensure the files you generate will match your expectation and will not need to be modified again.
As a suggestion enable versioning before any of these interactions if you want the ability to rollback quickly in a scenario where it needs to be reverted.
Sadly, you can't do this in place in S3. You have to download them, change their content and re-upload.
This is because S3 is an object storage system, not regular file system.
To simply working with S3 files, you can use third part tool s3fs-fuse. The tool will make the S3 appear like a filesystem on your os.
Let's say I have a table in the path
s3:bucketname/tablename/month/day/deviceid
I want to move all files to s3:bucketname/tablename/month/day/. In other words, I want to ignore the last partition.
Note that there are already data in the path s3:bucketname/tablename/month/day/
Can I use aws s3 to achieve this?
I have more than 100K files so I cannot do this manually.
I believe you can use the AWS console on the web. Open the source folder (deviceid), select all its contents by the checkbox to the left on Name.
Then select Actions → Copy.
Open the destination folder (day), click Actions → Paste. Confirm the operation.
Once the operation has finished successfully, you can delete the source folder with all its contents.
You can do this in 2 ways.
If you are not familiar with the aws cli, then go to the console, select all the files, cut and paste on the desired directory. However, this is very time consuming and inefficient task.
I recommend the aws cli for S3. You can find some sample commands here.
So I know this is a common question but there just doesn't seem to be any good answers for it.
I have a bucket with gobs (I have no clue how many) number of files in them. They are all within 2k a piece.
1) How do I figure out how many of these files I have WITHOUT listing them?
I've used the s3cmd.rb, aws/s3, and jets3t stuff and the best I can find is a command to count the first 1000 records (really performing GETS on them).
I've been using jets3t's applet as well cause it's really nice to work with but even that I can't list all my objects cause I run out of heap space. (presumably cause it is peforming GETS on all of them and keeping them in memory)
2) How can I just delete a bucket?
The best thing I've seen is a paralleized delete loop and that has problems cause sometimes it tries to delete the same file. This is what all the 'deleteall' commands that I've ran across do.
What do you guys do who have boasted about hosting millions of images/txts?? What happens when you want to remove it?
3) Lastly, are there alternate answers to this? All of these files are txt/xml files so I'm not even sure S3 is such a concern -- maybe I should move this to a document database of sorts??
What it boils down to is that the amazon S3 API is just straight out missing 2 very important operations -- COUNT and DEL_BUCKET. (actually there is a delete bucket command but it only works when the bucket is empty) If someone comes up with a method that does not suck to do these two operations I'd gladly give up lots of bounty.
UPDATE
Just to answer a few questions. The reason I ask this was I have been for the past year or so been storing hundreds of thousands, more like millions of 2k txt and xml documents. The last time, a couple of months ago, I wished to delete the bucket it literally took DAYS to do so because the bucket has to be empty before you can delete it. This was such a pain in the ass I am fearing ever having to do this again without API support for it.
UPDATE
this rocks the house!
http://github.com/SFEley/s3nuke/
I rm'd a good couple gigs worth of 1-2k files within minutes.
I am most certainly not one of those 'guys do who have boasted about hosting millions of images/txts', as I only have a few thousand, and this may not be the answer you are looking for, but I looked at this a while back.
From what I remember, there is an API command called HEAD which gets information about an object rather than retrieving the complete object which is what GET does, which may help in counting the objects.
As far as deleting Buckets, at the time I was looking, the API definitely stated that the bucket had to be empty, so you need to delete all the objects first.
But, I never used either of these commands, because I was using S3 as a backup and in the end I wrote a few routines that uploaded the files I wanted to S3 (so that part was automated), but never bothered with the restore/delete/file management side of the equation. For that use Bucket Explorer which did all I need. In my case, it wasn't worth spending time when for $50 I can get a program that does all I need. There are probably others that do the same (eg CloudBerry)
In your case, with Bucket Explorer, you can right click on a bucket and select delete or right click and select properties and it will count the number of objects and the size they take up. It certainly does not download the whole object. (Eg the last bucket I looked it was 12Gb and around 500 files and it would take hours to download 12GB whereas the size and count is returned in a second or two). And if there is a limit, then it certainly isn't 1000.
Hope this helps.
"List" won't retrieve the data. I use s3cmd (a python script) and I would have done something like this:
s3cmd ls s3://foo | awk '{print $4}' | split -a 5 -l 10000 bucketfiles_
for i in bucketfiles_*; do xargs -n 1 s3cmd rm < $i & done
But first check how many bucketfiles_ files you get. There will be one s3cmd running per file.
It will take a while, but not days.
1) Regarding your first question, you can list the items on a bucket without actually retrieving them. You can do that both with the SOAP and the REST API. As you can see, you can define the maximum number of items to list and the position to start the listing from (the marker). Read more about it here.
I do not know of any implementation of the paging, but especially for the REST interface it would be very easy to implement it in any language.
2) I believe the only way to delete a bucket is to first empty it from all items. See alse this question.
3) I would say that S3 is very well suited for storing a large number of files. It depends however on what you want to do. Do you plan to also store binary files? Do you need to perform any queries or just listing the files is enough?
I've had the same problem with deleting hundreds of thousands of files from a bucket. It may be worthwhile to fire up an EC2 instance to run the parallel delete because the latency to S3 is low. I think there's some money to be made hosting a bunch of EC2 servers and charging people to delete buckets quickly. (At least until Amazon gets around to changing the API)
Old thread, but still relevant as I was looking for the answer until I just figured this out. I wanted a file count using a GUI-based tool (i.e. no code). I happen to already use a tool called 3Hub for drag & drop transfers to and from S3. I wanted to know how many files I had in a particular bucket (I don't think billing breaks it down by buckets).
So, using 3Hub,
- list the contents of the bucket (looks basically like a finder or explorer window)
- go to the bottom of the list, click 'show all'
- select all (ctrl+a)
- choose copy URLs from right-click menu
- paste the list into a text file (I use TextWrangler for Mac)
- look at the line count
I had 20521 files in the bucket and did the file count in less than a minute.
I'd like to know if anyone's found a better way since this would take some time on hundreds of thousands of files.
To count objects in an S3 bucket:
Go to AWS Billing, then reports, then AWS Usage reports.
Select Amazon Simple Storage Service, then Operation StandardStorage.
Download a CSV file that includes a UsageType of StorageObjectCount that lists the item count for each bucket.
Count
aws s3 ls s3://mybucket/ --recursive | wc -l
From this post
Delete
aws s3 rm --recursive s3://mybucket/ && aws s3 rb s3://mybucket/
This deletes every item then the bucket.