hi Everyone,

I am currently configuring my backuppc using rsync but the error is "Error 
connecting to rsync daemon at host:873:inet connect: Interrupted system call".  
Can you please help me on this?  Do you have a more understandable procedure 
that I can use?  I am bewildered by some of the ideas that I got from the 
internet.


Thank you,
Charles


-----Original Message-----
From: Les Mikesell [mailto:lesmikesell AT gmail DOT com] 
Sent: Tuesday, October 22, 2013 5:13 AM
To: General list for user discussion, questions and support
Subject: Re: [BackupPC-users] Repeated error on more than one client; rsync 
timeout

On Mon, Oct 21, 2013 at 3:42 PM, Hans Kraus <hans AT hanswkraus DOT com> wrote:
> Hi,
>
> I get on more than one client the error in /var/log/syslog:
> ----------------------------------------------------------------
> rsync error: timeout in data send/receive (code 30) at io.c(137) 
> [sender=3.0.9]
> ----------------------------------------------------------------
> which then leads to the backuppc error: backup failed (Child exited 
> prematurely).
>
> This happens for incremental and full backups.
>
> I'm using rsyncd as transfer method. Is there any coure for that?
> Google brought up some cases with the same or similar error(s), but no 
> remedy.

I think that the ClientTimeOut setting is supposed to be for idle time on the 
network connection, but under some circumstances it isn't reset
on activity and becomes the total timeout for the run.    Try bumping
it much higher, especially if your current setting is approximately the time 
when a timeout occurs.

Also rsync can have long periods of idle time reading blocks where there are no 
differences from the comparison base.  If the connection goes through a NAT 
gateway or a stateful firewall, the devices may time the connection out and be 
blocked.  If you are running over ssh, you can enable keepalives on the ssh 
connection with the
ServerAliveInterval option.    Standalone rsync may also have a way to
enable keepalives but I don't know where to set it.


-- 
   Les Mikesell
     lesmikesell AT gmail DOT com

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