Performance and simultaneous connections over SSH

[Matt McCutchen]

On Sun, 2010-08-15 at 10:50 -0600, Francois Begin wrote:
> I just started to notice some 'sync sputtering': Sometime, all 4
> server's latest access log will have the same timestamp e.g. 09:30,
> while at other times I would see something like this: It is 09:35 and
> I have 2 servers at 09:20 and 2 at 09:30 i.e. they could not all sync
> themselves during the last round. 

I would suggest enabling logging with --log-file on either the client or
the server side to get more information about what is happening.

> How does rsync handle mutliple simultaneous connections over SSH. I am
> guessing that it is up to the log repo server to allocate 4 separate
> SSH sessions, and that within each of these, it will use rsync to sync
> up the logs. Is that correct?

Correct.  The four rsync instances on the log repo server will work
independently.

-- 
Matt