rclone
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Configuration
To start transferring data between HPC and a cloud service, you'll first need to establish a connection to the desired service using rclone's configuration process. The easiest way to do this is in an Open OnDemand Virtual Desktop. For the quickest access, use the ElGato cluster. In your desktop, open a terminal session under MATE Terminal in the toolbar.
In the terminal, type rclone config
. Select n
for "New remote". You will be prompted to enter a name which will be used to access your configured storage service for all future connections. For ease of use, we recommend not including spaces in the name.
[sarawillis@gpu67 ~]$ rclone config No remotes found, make a new one? n) New remote s) Set configuration password q) Quit config e/n/d/r/c/s/q> n name>
The rest of the configuration process is dependent on the service you wish to use. Two examples are shown below for connecting to Box and Google Drive. However, there are many more options available to choose from (for example: AWS S3, OneDrive, Dropbox, etc.). The rclone prompts for the various setups below have been edited for brevity.
Transferring Files
See rclone's official documentation for a detailed list of all options available: https://rclone.org/docs/
Once you have a connection configured, you can use rclone in batch jobs, interactive terminal sessions, or on a filexfer node. Rclone supports file transfers and syncs between your local filesystem and a remote endpoint, or between two remote endpoints. When getting started with rclone, we recommend running some tests using the additional flag --dry-run, especially when syncing directories. This will print out the commands rclone would use without executing them.
Listing Contents
To view the contents of a remote service, for the most human-readable format you can use rclone lsf
<Name>:/path/to/directory
[sarawillis@cpu7 rclone_hpc]$ rclone lsf GoogleDrive: Colab Notebooks/ Consulting and Support Services/ HPC/ rclone_example [sarawillis@cpu7 rclone_hpc]$ rclone lsf GoogleDrive:/rclone_example hello.py
Transferring a Single File
To transfer a single file, use the rclone copyto <source> <destination>
command. For example, transferring a file from Google Drive to HPC
[sarawillis@cpu7 rclone_hpc]$ ls [sarawillis@cpu7 rclone_hpc]$ rclone copyto GoogleDrive:/rclone_example/hello.py ./hello.py [sarawillis@cpu7 rclone_hpc]$ ls hello.py
And transferring a file from HPC to Google Drive:
[sarawillis@cpu7 rclone_hpc]$ echo "This is a test" > test.txt [sarawillis@cpu7 rclone_hpc]$ rclone copyto ./test.txt GoogleDrive:/rclone_example/test.txt [sarawillis@cpu7 rclone_hpc]$ rclone lsf GoogleDrive:/rclone_example hello.py test.txt
Transferring a Directory
To transfer a directory, use the rclone copy <source> <destination>
command. For example, transferring a file from Google Drive to HPC:
[sarawillis@cpu7 rclone_hpc]$ rclone lsf GoogleDrive:/rclone_example hello.py rclone_subdirectory/ test.txt [sarawillis@cpu7 rclone_hpc]$ ls hello.py test.txt [sarawillis@cpu7 rclone_hpc]$ rclone copy GoogleDrive:/rclone_example/rclone_subdirectory ./rclone_subdirectory [sarawillis@cpu7 rclone_hpc]$ ls rclone_subdirectory hello.py test.txt [sarawillis@cpu7 rclone_hpc]$ ls rclone_subdirectory/ meep.png snarf.png hello_world.txt
And transferring a directory from HPC to Google Drive:
[sarawillis@cpu7 rclone_hpc]$ mkdir hpc_directory [sarawillis@cpu7 rclone_hpc]$ echo "foo" > hpc_directory/bar.txt [sarawillis@cpu7 rclone_hpc]$ rclone copy ./hpc_directory/ GoogleDrive:/rclone_example/hpc_directory [sarawillis@cpu7 rclone_hpc]$ rclone lsf GoogleDrive:/rclone_example hello.py hpc_directory/ rclone_subdirectory/ test.txt
Syncing a Directory
Using rclone sync <source> <destination>
will make <source>
and <destination>
identical by modifying <destination> only. When starting out with rclone sync, try first using the --dry-run
flag to avoid any unintentional data loss. As an example:
[sarawillis@cpu7 rclone_hpc]$ tree . ├── hello.py ├── hpc_directory │  └── bar.txt ├── rclone_subdirectory │  ├── hello_world.txt │  ├── meep.png │  └── snarf.png └── test.txt 2 directories, 6 files [sarawillis@cpu7 rclone_hpc]$ rclone tree GoogleDrive:/rclone_example / ├── hello.py ├── hpc_directory │ └── bar.txt ├── rclone_subdirectory │ ├── hello_world.txt │ ├── meep.png │ └── snarf.png └── test.txt 2 directories, 6 files [sarawillis@cpu7 rclone_hpc]$ echo "changing a file" > hpc_directory/bar.txt [sarawillis@cpu7 rclone_hpc]$ rm hello.py [sarawillis@cpu7 rclone_hpc]$ rclone sync ./ GoogleDrive:/rclone_example --dry-run 2023/10/06 14:26:51 NOTICE: hpc_directory/bar.txt: Skipped copy as --dry-run is set (size 16) 2023/10/06 14:26:51 NOTICE: hello.py: Skipped delete as --dry-run is set (size 52) 2023/10/06 14:26:51 NOTICE: Transferred: 16 B / 16 B, 100%, 0 B/s, ETA - Checks: 6 / 6, 100% Deleted: 1 (files), 0 (dirs) Transferred: 1 / 1, 100% Elapsed time: 1.0s [sarawillis@cpu7 rclone_hpc]$ rclone sync ./ GoogleDrive:/rclone_example --progress # Now to actually execute the sync Transferred: 16 B / 16 B, 100%, 7 B/s, ETA 0s Checks: 6 / 6, 100% Deleted: 1 (files), 0 (dirs) Transferred: 1 / 1, 100% Elapsed time: 3.6