Rsync command deletion error “IO error encountered — skipping file deletion”

permissionsrsync

I use rsync command to take backup of files from one of my ubuntu server to another ubuntu machine.
Backup server trigger a script that use rysnc command.
Here is the command I use

rsync -rltvh –partial –stats –exclude=.beagle/ –exclude=.* –delete-after root@live_server:/home/ /home/live_server_backup/home >> /tmp/logfile.log 2>&1

live_server is ssh-able without password. So it works. Now problem is with

–delete-after option

After all file synced .At the end I can see deletion procedure skipped.logfile error is like

IO error encountered — skipping file deletion

When i tried to find log there were some error while file sync

rsync: send_files failed to open "/home/xyz/Desktop/PPT_session_1_context.pdf": Permission denied (13)

So my understanding is as rsync could not read all the files from target for safety reason it is skipping the file deletion.

Is there any way to make –delete-after work even if there is some permission error?
I do not want to use force deletion as it will be dangerous in some situation.

Best Answer

Additional note about this issue:

vanished file should not trigger the condition IO error encountered -- skipping file deletion, but this often happens when you are creating a backup of a live system.

This is covered by rsync bug #7809 (https://bugzilla.samba.org/show_bug.cgi?id=7809) and should be solved in the upcoming release 3.1.0.

In the meantime use:

--ignore-errors         delete even if there are I/O errors

Related Solutions

Permission denied in Ansible synchronize module

After all privilege escalation is already in place and working.

Not exactly - synchronize module runs rsync locally on the management machine, not on the target node (for which you set up the privilege escalation). Module documentation describes this in details (an excerpt below):

The user and permissions for the synchronize src are those of the user running the Ansible task on the local host (or the remote_user for a delegate_to host when delegate_to is used).

The user and permissions for the synchronize dest are those of the remote_user on the destination host or the become_user if become=yes is active.

So it is accessing your source folder (server:/var/backup/ in the example) as user not root.

If you don't require password for the user to sudo on the target machine (or just do configure it this way for the rsync command) you can use delegate_to: <your_server> parameter combined with rsync_path="sudo rsync" to run it explicitly with sudo.

Windows – Rsync and Cygwin based backup on Windows gives permission denied errors

I managed to find a solution which currently works for me. I am unsure if this is a guaranteed correct approach.

In order to avoid permission issues, I need to add the following to my rsync command: --no-p --chmod=ugo=rwX. Thus, my rsync backup command should look like the following:

rsync -avhP --no-p --chmod=ugo=rwX --delete --log-file="/cygdrive/C/Users/MyUsername/rsync-backup-log.txt" "/cygdrive/C/Users/MyUsername/Folder A" "/cygdrive/E/Backup/"

Credit to this solution goes to the following answer in a similar post: https://superuser.com/a/69764/607501

Best Answer

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Permission denied in Ansible synchronize module

Windows – Rsync and Cygwin based backup on Windows gives permission denied errors

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