Issue with Sum update

2008-05-14 Thread zahed

Hi all,

I need help with a little issue. Is it possible to update the sum(in
receive_data) using the checksum of the block rather than the data itself?.

thanks and regards,
zahed
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Help

2008-05-14 Thread Victor Farah

Hello there
I have a question about rsync, and some options.
I have 10 servers here that all need data from one machine.  It's a 
LARGE amount of files all pictures and files and such, now every time I 
rsync the directory over it takes like hours to create the file list. 
Now I'm fine with that, but I need to know if it can save the file list 
it generates and uses it over again for the other machines?

Now my script is pretty basic:
rsync -urvlopg --delete /local/dir rsync://remote1/MODULE
repeat this ten times for remote1 through remote10.  I want to speed up 
this process by making it so it only gets the file list once and copies 
the updates it needs to each machine.  Right now when the script runs it 
will rsync generate file list, copy the files to the remote and then 
finish, go to the next line and do the same thing over again, so it 
takes hours to create the file list and hours to copy.  I just want it 
to create the file list once and copy what it needs to each machine, is 
there a way to do this?



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Victor Farah - Systems Administrator
netmediaservices.net
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Re: Help

2008-05-14 Thread Yan Seiner

On Wed, May 14, 2008 12:55 pm, Victor Farah wrote:
 Hello there
   I have a question about rsync, and some options.
 I have 10 servers here that all need data from one machine.  It's a
 LARGE amount of files all pictures and files and such, now every time I
 rsync the directory over it takes like hours to create the file list.
 Now I'm fine with that, but I need to know if it can save the file list
 it generates and uses it over again for the other machines?
 Now my script is pretty basic:
 rsync -urvlopg --delete /local/dir rsync://remote1/MODULE
 repeat this ten times for remote1 through remote10.  I want to speed up
 this process by making it so it only gets the file list once and copies
 the updates it needs to each machine.  Right now when the script runs it
 will rsync generate file list, copy the files to the remote and then
 finish, go to the next line and do the same thing over again, so it
 takes hours to create the file list and hours to copy.  I just want it
 to create the file list once and copy what it needs to each machine, is
 there a way to do this?

rsync is stateless, so AFAIK it doesn't save the state.

You can look into unison, which is stateful - it saves the state of each
replica between runs.  I believe there is a way to get it to act like
rsync - one directional transfers.

--Yan


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Yan Seiner  (_)\(_)   ,/'_ o__
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Re: Help

2008-05-14 Thread Wayne Davison
On Wed, May 14, 2008 at 03:55:40PM -0400, Victor Farah wrote:
 I need to know if it can save the file list it generates and 
 uses it over again for the other machines?

As long as each of the machines you are updating is in the same state,
you can use a batch file to update them all.  Create the batch file when
you update the first machine (add --write-batch=FILENAME to the command)
and then just use --read-batch=FILENAME in place of a source arg on all
the rest of the destinations.

If the destination machines differ, the batch file might fail to update
a file since it might not contain the right data needed to perform the
update.  The process is somewhat forgiving, though, as rsync can skip
items in the batch file that aren't needed, or discard a failed update
if the final checksum does not match.

..wayne..
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