multiplexing overflow errors

Dieter Stüken D.Stueken at
Fri Nov 27 08:45:40 MST 2009

I'm using rsync 3.0.6 between two solaris 8/10 hosts an I frequently get "multiplexing overflow" errors:

log/20091123_223901/dresden.log:multiplexing overflow 101:7104843 [sender]
log/20091123_223901/frankfurt.log:multiplexing overflow 101:7104843 [sender]
log/20091123_223901/hannover.log:multiplexing overflow 101:7104843 [sender]
log/20091123_223901/muenchen.log:multiplexing overflow 101:7104843 [sender]
log/20091123_223901/stuttgart.log:multiplexing overflow 101:7104843 [sender]
log/20091124_193051/dresden.log:multiplexing overflow 101:7104843 [sender]
log/20091124_193051/muenchen.log:multiplexing overflow 101:7104843 [sender]

I have to admit that I have to syncronize HUGE directories with up to 1 000 000 tiny files!
But this does not fail in general. After a few retries it works, but it is annoying.

Any clue?
I compiled the source myself, so I may be able to debug it or to include some diagnostic messages to narrow the problem.

My current version is:

rsync  version 3.0.6  protocol version 30
Copyright (C) 1996-2009 by Andrew Tridgell, Wayne Davison, and others.
Web site:
    64-bit files, 64-bit inums, 32-bit timestamps, 64-bit long ints,
    socketpairs, hardlinks, symlinks, no IPv6, batchfiles, inplace,
    append, ACLs, no xattrs, iconv, no symtimes

rsync comes with ABSOLUTELY NO WARRANTY.  This is free software, and you
are welcome to redistribute it under certain conditions.  See the GNU
General Public Licence for details.


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