Rsyncing huge file, timeout on rsyncd

Libor Klepáč libor.klepac at
Thu Aug 2 04:46:45 MDT 2012

Just to clarify
When using rsyncd script, there is also no progress from beginning, it just 


Dne Thursday 02 August 2012 12:26:13, Libor Klepáč napsal(a):
> Hello,
> let me describe my setup.
> Source server is debian wheezy, rsync 3.0.9
> Destination is qnap TS-410, with rsyncd enabled, rsync 3.0.7
> I'm trying to rsync two files, which are exported from source server as
> iscsi targets (windows iscsi backups). Files are on btrfs, so I use
> snapshots during rsync, so files don't change.
> One file is 50GB, second is 550GB in size.
> Initial sync over rsyncd daemon went fine.
> Now, i'm trying to sync data, after change.
> When i try to sync over rsyncd, it ends after 20 minutes with:
> rsync: connection unexpectedly closed (2438836 bytes received so far)
> [sender] rsync error: error in rsync protocol data stream (code 12) at
> io.c(605) [sender=3.0.9]
> When i try to rsync over ssh, it takes ages to show progress status (around
> 1 hour for smaller file, 4-5 hours for big file).
> Whats going out there?
> Source server is idle during this "no progress" period, destination Qnap has
> one rsync process eating cpu.
> My commands are (example with one file)
> for rsyncd
> rsync --inplace --progress --numeric-ids --times --password-file .passwd
> iscsi/iscsiDisk1 rsync://backup-rsync@
> for ssh
> rsync --inplace --progress --numeric-ids --times iscsi/iscsiDisk1
> admin at
> With regards
> Libor Klepac
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