Rsync between HPUX11.11 and Redhat7.3

[Stanton Scott]

Hi,

The number of files we are trying to mirror is
approximately: 100 000 and growing.

The version of RSYNC are as follows: 
- On HPUX   : 2.5.6 (client)
- On Redhat : 2.5.4 (server)

The kernel version of the Redhat server is:  2.4.18-3
The amount of physical memory on the Redhat server is: 512m


The rsync server and client do not appear to be under much
of a load when performing this rsync operation.

I have tried using rsync without using compression, but
unfortunaly this did not correct the problem.

I am incorrect in saying that rsync freezes, I have
identified it does not actualy freeze it just slows down
incredibly ( +- 5kb per second transfer speed), it just
appeared to freeze.

With a smaler amount of files rsync works perfectly between
my HP and Linux box.

Im not sure why rsync slows down to such a degree, do you
think playing with the socket options could have a
possitive affect ?

Thanks,
Stanton.

On Tue, 25 Feb 2003 02:01:53 -0800
 jw schultz <jw at pegasys.ws> wrote:
> On Mon, Feb 24, 2003 at 12:16:23PM +0200, Stanton Scott
> wrote:
> > Hi,
> > 
> > If anyone has an Idea on how to solve the following
> problem
> > it would be greatly appreciated :). 
> > 
> > The scenario is as follows:
> > 
> > Im running an rsync server on Redhat7.3. The rsync
> server
> > configuration file looks as follows:
> > 
> > #### rsyncd.conf
> > 
> >  log file = /var/log/rsyncd.log
> >  pid file = /var/run/rsyncd.pid
> >  lock file = /var/run/rsyncd.lock
> >  max connections = 5
> >  use chroot = true
> >  list = true
> >  read only = true
> >  auth users = rsync_backup
> >  secrets file = /etc/rsyncd.secrets
> >  strict modes = true
> >  transfer logging = true
> >  uid = 0
> >  gid = 0
> > 
> > [server_config]
> >   path    = /opt/config
> >   comment = Server configuration files
> > 
> > [home_dirs]
> >   path    = /home
> >   comment = User home directories
> > 
> > ## end rsyncd.conf
> > 
> > I then use the HPUX machine as an rsync client. I want
> to
> > mirror all information hosted on the Redhat server to
> the
> > HPUX server. The HPUX server is running HPUX11.11
> > 
> > When running rsync on the HPUX server with the
> following
> > options: rsync -avz rsync_backup at gandalf::home_dirs/ .
> > rsync freezes during the file transfer operation.
> > 
> > I have identified that rsync only appears to freeze on
> copy
> > operations that have a large volume of files to be
> coppied.
> > 
> > If anyone has any suggestions or advice on how to fix
> this
> > it would be much appreciated.
> 
> You are using fairly vague terms.  "Large volume of
> files"
> is subjective.  To one person 10,000 is a lot, to another
> 1,000,000 isn't.  What versions of rsync?  Since the file
> count
> seems to be the issue how much memory and the kernel
> versions would be more helpful than saying Readhat7.3.
> 
> Since it is "frozen" it should be easy for you to look at
> the process on the server.  You should look at its memory
> footprint, how much paging and swapping is going on and
> the
> like.  On a lan turning off compression would be
> sensible.
> And don't forget to look in the daemon's log file.
> 
> -- 
>
________________________________________________________________
> 	J.W. Schultz            Pegasystems Technologies
> 	email address:		jw at pegasys.ws
> 
> 		Remember Cernan and Schmitt
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