Toomas Aas wrote at 10:13 +0200 on Mar  1, 2009:
 > Sunday 01 March 2009 04:59:54 kirjutasid sa:
 > > Is this new DLE big?  Lots of files?
 > 
 > The new DLE is not that big. Its 'raw capacity' is 21 GB, ca 25000 files, 
 > but 
 > most of it are MySQL and PostgreSQL database files which are excluded from 
 > the DLE.
 > 
 > > It's also possible you're hitting a udp datagram size limit.  This can
 > > be improved with a sysctl tweak, or a source patch or using tcp
 > > (sorry - don't recall if amanda 2.5.1 supports the latter).
 > 
 > Thanks for the idea, I'll increase the net.inet.udp.maxdgram sysctl. 

Long pathnames can exacerbate the udp issue, too.


 > I also looked at sendbackup debug files on the client, but the only error 
 > there is the same 'index tee cannot write [Broken pipe]':
    .
    .
 > sendbackup: time 0.014: started index creator: "/usr/local/bin/gtar -tf - 
 > 2>/dev/null | sed -e 's/^\.//'"
 > sendbackup: time 469.114: index tee cannot write [Broken pipe]
 > sendbackup: time 469.114: pid 11511 finish time Sat Feb 28 04:14:12 2009

It dies after 469 seconds.  That doesn't seem to be a data timeout
(dtimeout defaults to 1800 seconds).
But often when you have a "biggish" DLE with lots of excludes, it
can cause tar to be silent for extended periods of time and
trigger a timeout.