I like this one :-)
On 1/13/21 8:15 AM, Johan Ehnberg wrote:
On 13.1.2021 0.58, Adam Goryachev via BackupPC-users wrote:
On 13/1/21 09:21, Les Mikesell wrote:
On Tue, Jan 12, 2021 at 4:15 PM Greg Harris
<ghar...@teamexpansion.org> wrote:
Yeah, that “if you can interpret it” part gets really hard when it
looks like:
select(7, [6], [], [6], {tv_sec=60, tv_usec=0}) = 1 (in [6], left
{tv_sec=59, tv_usec=999999})
read(6,
"\0\200\0\0\4\200\0\7\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
32768) = 27748
Scrolling at 32756 lines in around 30 seconds.
That tells you it is not hung up. You could grep some 'open's out of
the stream to see what files it is examining. Sometimes the client
side will do a whole lot of reading before it finds something that
doesn't match what the server already has.
I tend to use something like:
strace -e open -p <pid of rsync>
Also:
ls -l /proc/<pid of rsync>/fd
Regards,
Adam
Here's another one to run on the host being backed up. It shows the file
being backed up (read, not necessarily transferred) at any given time.
You may want to tune the refresh rate; '0.1' is very rapid. '3r' can in
theory vary between implementations.
sudo watch -n0.1 'lsof -c rsync | grep 3r'
Best regards,
Johan
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