Synchronise file

[meekrob]

Hi all ,
i need an information please,
can we do in HP-UX a synchronisation of files or directories ,
for example , if i have two servers , and two files each on one server with the same name , and i make changes to one file and i want that the file on the other server that take the changes automatically also ?
thank's

[A. Clay Stephenson · Accepted solution]

Of course, the easist would be to NFS mount the files so that there would only be set of files and they would also be "in sync".

You can use the rdist utility to copy files from one to the other but it is not automatic. You would have to cron something to periodically sync the files.

You should also look at rsync:
http://hpux.cs.utah.edu/hppd/hpux/Networking/Admin/rsync-2.6.8/

It's smarter than rdist in that it can transfer only portions of changed files.

Really, NFS is the better approach because the changes are instantaneous (well, almost) and you don't have to worry about which copy is the actually the master. Consider what happens when the same file is updated on both hosts at the same time. They contain different data, but which one wins? NFS solves that for you.

[IT_2007]

yes you can do with rdist command.

also check on rsync utility for how to distribute files globally.

[meekrob]

when i tried to install the rsync , i have the following error :

Agent session started for user "root@scxpdap1.beac.int".
(pid=11104)

* Beginning Analysis Phase.
* Source:
scxpdap1.beac.int:/global/outils/RSYNC/rsync-2.6.8-hppa-11.23-2.depot

* Target: scxpdap1:/
* Target logfile: scxpdap1:/var/adm/sw/swagent.log

* Reading source for product information.
* Reading source for file information.
The corequisite "gettext.gettext-SHLIBS" for fileset
"rsync.rsync-RUN,r=2.6.8" cannot be successfully resolved.
The corequisite "popt.popt-RUN" for fileset
"rsync.rsync-RUN,r=2.6.8" cannot be successfully resolved.
ERROR: The dependencies for fileset "rsync.rsync-RUN,r=2.6.8" cannot
be resolved (see previous lines).
You must resolve the above dependencies before operating on
this fileset or change the "enforce_dependencies" option to
"false".
* Executing preDSA command.

* Summary of Analysis Phase:
ERROR: Exclude rsync.rsync-RUN,r=2.6.8
ERROR: 1 of 1 filesets had Errors.
ERROR: The Analysis Phase had errors. See the above output for
details.

can you have ideas about that
thank you

[A. Clay Stephenson]

You should have paid attention to the run-time requirements for rsync: gettext, libiconv, libgcc, and popt packages are all required.

Have you solved the synchronization precedence problem yet? If not, installing the software is the easy part. NFS is still the better answer.