Hi James,

On Wed, 08 Jul 2009, James Harper wrote:

> 7200 + 9 * 75 = 7875 seconds = 2 hours, 11 minutes and 15 seconds. I
> don't think that's a coincidence.

I'm inclined to agree.  Thanks :-)

> There are 3 TCP connections when a backup runs:
> DIR->SD
> DIR->FD
> FD->SD
> 
> The FD->SD one moves a lot of traffic, and one of the DIR->SD or DIR->FD
> ones moves a bit (attributes) but I can't remember which one. The other
> one is probably sitting idle and a firewall somewhere is timing out the
> connection long before the 2 hours that Linux uses as a minimum. 

I see.  I was trying to work out why the FD->SD had died, but it was killed
by bacula-dir when it detected one of the others died.  Looking at the
error, I'm going to guess that the problem is on the DIR->FD socket.

07-Jul 13:19 cuimhne-dir JobId 58: Fatal error: Network error with FD during 
Backup: ERR=Connection timed out

I've set a heartbeat interval of 60 seconds on the director and am running
the backup again to see what happens.  

I see similar issues with ssh connections through that firewall and have a
heartbeat set on them too, though I'd never noticed the significance of
7875 seconds.  Hopefully this will be a fix.

Thanks very much,
Gavin


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