Sync'ng directories between two servers ...

2007-02-07 Thread Marc G. Fournier
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Hi ..

  I've got a directory on ServerA that I would like to keep sync'd on ServerB 
... to date, I've been using rsync for this, but what I hate with that is that 
it has to scan the whole directory on both servers to compare, putting a good 
load on each of them ...

  Is there anything out there that ppl are using successfully that just looks 
at ServerA, and dumps across those files that have changed since the last sync? 
ServerB will never have any changes made to it, other then what ServerA sends 
across ...

Thanks ...

- 
Marc G. Fournier   Hub.Org Networking Services (http://www.hub.org)
Email . [EMAIL PROTECTED]  MSN . [EMAIL PROTECTED]
Yahoo . yscrappy   Skype: hub.orgICQ . 7615664
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Re: Sync'ng directories between two servers ...

2007-02-07 Thread Chuck Swiger

Marc G. Fournier wrote:
  I've got a directory on ServerA that I would like to keep sync'd on ServerB 
... to date, I've been using rsync for this, but what I hate with that is that 
it has to scan the whole directory on both servers to compare, putting a good 
load on each of them ...


  Is there anything out there that ppl are using successfully that just looks 
at ServerA, and dumps across those files that have changed since the last sync? 
ServerB will never have any changes made to it, other then what ServerA sends 
across ...


Rsync is about as good as it reasonably gets, short of putting everything 
explicitly under version control (ie, in SVN or CVS).  If you do put the tree 
of stuff under VC, doing an update operation on ServerB will only need to 
fetch the deltas made since the last update, without doing a comparison of the 
unchanged files or placing much load on ServerA.


--
-Chuck
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Re: Sync'ng directories between two servers ...

2007-02-07 Thread Bill Moran
In response to Chuck Swiger [EMAIL PROTECTED]:

 Marc G. Fournier wrote:
I've got a directory on ServerA that I would like to keep sync'd on 
  ServerB 
  ... to date, I've been using rsync for this, but what I hate with that is 
  that 
  it has to scan the whole directory on both servers to compare, putting a 
  good 
  load on each of them ...
  
Is there anything out there that ppl are using successfully that just 
  looks 
  at ServerA, and dumps across those files that have changed since the last 
  sync? 
  ServerB will never have any changes made to it, other then what ServerA 
  sends 
  across ...
 
 Rsync is about as good as it reasonably gets, short of putting everything 
 explicitly under version control (ie, in SVN or CVS).  If you do put the tree 
 of stuff under VC, doing an update operation on ServerB will only need to 
 fetch the deltas made since the last update, without doing a comparison of 
 the 
 unchanged files or placing much load on ServerA.

musing
You know, it'd be cool if there was some way to hook rsync in to FAM (or
a similar utility).  I found some discussion about this on the rsync
mailing list.  The response seems to indicate that it's more work than
it seems.  I wish I had time to investigate this, as it sounds like an
interesting project.
/musing

-- 
Bill Moran
Collaborative Fusion Inc.
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RE: Sync'ng directories between two servers ...

2007-02-07 Thread Gouverneur, Thomas

Maybe you would have a look to Unison...

http://www.cis.upenn.edu/~bcpierce/unison/


Regards,

--
Thomas Gouverneur
UNIX Assistant
TI Automotive

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Marc G. Fournier
Sent: mercredi 7 février 2007 15:11
To: freebsd-questions@freebsd.org
Subject: Sync'ng directories between two servers ...

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Hash: SHA1


Hi ..

  I've got a directory on ServerA that I would like to keep sync'd on
ServerB 
... to date, I've been using rsync for this, but what I hate with that is
that 
it has to scan the whole directory on both servers to compare, putting a
good 
load on each of them ...

  Is there anything out there that ppl are using successfully that just
looks 
at ServerA, and dumps across those files that have changed since the last
sync? 
ServerB will never have any changes made to it, other then what ServerA
sends 
across ...

Thanks ...

- 
Marc G. Fournier   Hub.Org Networking Services (http://www.hub.org)
Email . [EMAIL PROTECTED]  MSN . [EMAIL PROTECTED]
Yahoo . yscrappy   Skype: hub.orgICQ . 7615664
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Re: Sync'ng directories between two servers ...

2007-02-07 Thread Antony Mawer

On 8/02/2007 1:11 AM, Marc G. Fournier wrote:
  I've got a directory on ServerA that I would like to keep sync'd on ServerB 
... to date, I've been using rsync for this, but what I hate with that is that 
it has to scan the whole directory on both servers to compare, putting a good 
load on each of them ...


  Is there anything out there that ppl are using successfully that just looks 
at ServerA, and dumps across those files that have changed since the last sync? 
ServerB will never have any changes made to it, other then what ServerA sends 
across ...


Try sysutils/cpdup - I've used it in the past and it's reasonably quick 
and efficient. http://www.freshports.org/sysutils/cpdup/


--Antony
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