rsync pauses

Justin T Pryzby justinp at
Wed Aug 31 08:38:08 MDT 2011

I assume it's doing I/O, you can start a strace on the process to see
for sure.  Note that the rsync client usually forks a few times, so
you may want to strace all of them (strace -p X -p Y -p Z), or launch
the command under strace (strace -f CMD ARGS). 


On Wed, Aug 31, 2011 at 07:09:35PM +0900, David Somers-Harris wrote:
> rsync pauses during transfers. That is, while I'm watching the verbose
> output, it will run through lots of files and then pause at an arbitrary
> point and do nothing for around 3-15 minutes and then it will pick up again.
> I'm using both -v and --stats. Why would this be? Is it scanning the
> directory?
> Both source and destination have rsync 3.0.8 and FreeBSD 8

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