Rsync between HPUX11.11 and Redhat7.3
sas1 at ananzi.co.za
Wed Feb 26 01:57:48 EST 2003
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 ?
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
> > Hi,
> > If anyone has an Idea on how to solve the following
> > it would be greatly appreciated :).
> > The scenario is as follows:
> > Im running an rsync server on Redhat7.3. The rsync
> > 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
> > mirror all information hosted on the Redhat server to
> > HPUX server. The HPUX server is running HPUX11.11
> > When running rsync on the HPUX server with the
> > 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
> > operations that have a large volume of files to be
> > If anyone has any suggestions or advice on how to fix
> > it would be much appreciated.
> You are using fairly vague terms. "Large volume of
> is subjective. To one person 10,000 is a lot, to another
> 1,000,000 isn't. What versions of rsync? Since the file
> 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
> like. On a lan turning off compression would be
> 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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