Rsync: error in rsync protocol data stream
How to fix protocol data stream error from Rsync.
There are multiple causes for the "Error in Rsync Protocol Data Stream" error:
rsync error: error in rsync protocol data stream (code 12)
The remote machine disk is full
Check that the remote machine disk is not full and the transfer will not occupy the disk at its full capacity.
Rsync is not installed on the remote machine
Log into the remote machine and run
rsync to make sure it's installed:
Remote destination doesn't exist
Check that the remote destination folder exists.
Do a quick test:
$ rsync FILE USER@HOST:/my_existing_directory/
Remote destination folder permissions
Check the permissions of the destination folder The user running the Rsync command should own the destination folder:
$ chown -R username /destination_folder
Rsync versions not in sync
Verify that both the local machine and remote machine are running the latest version of Rsync:
$ rsync --version
-timeout option during a Rsync transfer.
Similarly, you can configure the remote machine SSH parameters around
ServerAliveCountMax to prevent a timeout.