What is S3cmd sync?
Program S3cmd can transfer files to and from Amazon S3 in two basic modes: Unconditional transfer — all matching files are uploaded to S3 (put operation) or downloaded back from S3 (get operation). This is similar to a standard unix cp command that also copies whatever it’s told to.
What is the use of sync in aws CLI?
Note: Update the sync command to include your source and target bucket names. The sync command uses the CopyObject APIs to copy objects between S3 buckets. The sync command lists the source and target buckets to identify objects that are in the source bucket but that aren’t in the target bucket.
Is aws S3 sync recursive?
Syncs directories and S3 prefixes. Recursively copies new and updated files from the source directory to the destination. Only creates folders in the destination if they contain one or more files. See ‘aws help’ for descriptions of global parameters.
How fast is S3 sync?
about 150 megabytes/second
After some preliminary tests with aws s3 sync we found we could get a max of about 150 megabytes/second throughput. A little back-of-the-envelope math shows it would take over 40 days to complete.
Does S3 sync remove files?
By default, the aws sync command (see documentation) does not delete files. It simply copies new or modified files to the destination. Using the –delete option deletes files that exist in the destination but not in the source.
Where is the s3cmd config file?
The s3cmd configuration file is named . s3cfg and it is located in the user’s home directory, e.g. /home/username/ ($HOME). The s3cmd configuration file contains all s3cmd settings. This includes the Amazon access key and secret key for s3cmd to use to connect to Amazon S3.
Does s3 sync remove files?
Why is aws sync so slow?
Too many concurrent requests can overwhelm a system, which might cause connection timeouts or slow the responsiveness of the system. To avoid timeout issues from the AWS CLI, you can try setting the –cli-read-timeout value or the –cli-connect-timeout value to 0.
Is aws CLI faster than boto3?
The AWS Command-Line Interface (CLI) actually uses boto itself, so it is not ‘faster’. However, the aws s3 sync command uses threading to copy multiple files simultaneously, so the copy operation takes less elapsed time.
Does s3 sync delete files?
By default, the aws sync command (see documentation) does not delete files. It simply copies new or modified files to the destination.
What permissions does S3 sync need?
To run the command aws s3 sync, then you need permission to s3:GetObject, s3:PutObject, and s3:ListBucket.
Is AWS S3 sync atomic?
While S3 object uploads are atomic, there isn’t a guarantee that a folder sync will be. We wanted the ability to rollback a faulty deploy in seconds.
How does s3cmd sync files to Amazon S3?
Program S3cmd can transfer files to and from Amazon S3 in two basic modes: Unconditional transfer — all matching files are uploaded to S3 (put operation) or downloaded back from S3 (get operation). Conditional transfer — only files that don’t exist at the destination in the same version are transferred by the s3cmd sync command.
What do you need to know about s3cmd 2.0?
To access all the options and commands listed below, you’ll need s3cmd version 2.0 or newer S3cmd is a tool for managing objects in Amazon S3 storage. It allows for “objects” from these buckets. –configure Invoke interactive (re)configuration tool. Optionally them all. Config file name. Defaults to $HOME/.s3cfg and command line options and exit.
Do you have to include pattern in s3cmd?
That’s quite a powerful way to fine tune your uploads or downloads — you can for example instruct s3cmd to backup your home directory but don’t backup the JPG pictures ( exclude pattern), except those whose name begins with a capital M and contain a digit. These you want to backup ( include pattern). S3cmd has one exclude list and one include list.
What’s the difference between Sync and upload in S3?
However the important difference is that sync first checks the list and details of the files already present at the destination, compares with the local files and only uploads the ones that either are not present remotely or have a different size or md5 checksum.