file corruption

[Kevin Korb]

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- -a should take care of making sure rsync doesn't re-transfer things
that don't need it.  -c will make sure rsync takes longer than just
re-copying everything would.

Rsync does do a checksum of the files it transfers without -c.

On 04/28/13 03:40, anuragmnnit2004 wrote:
> Database lock is taken on active before rsync is done so it is in
> freezed state.
> 
> I have added checksum so that later full syncing is not done on
> further rsync. Does cheksum is verified before writing data to disc
> in destination?
> 
> 
> 
> Kevin Korb wrote In use databases can't be copied with rsync or any
> file based tool. The database must be inactive to be copied.  You
> didn't mention which kind of database you are using but most have a
> function to freeze the database for backups.  I don't know if QNX
> has LVM functionality but that can work too.
> 
> Also, don't use -c unless you have a really good reason.  It is
> almost always a bad idea.
> 
> On 04/27/13 14:26, anurag trivedi wrote:
>>>> I am using rsync in my project for copying database binary
>>>> files over the network from active module to standby module.
>>>> Once in a while files found to be corrupt on standby module
>>>> when copying is done first time.When I checked the active
>>>> module at that time files found to be proper. rsync is
>>>> completing successful without giving any errors. On comparing
>>>> both files I see a big hole in standby file filled with 0's.
>>>> Below is my rsync command -
>>>> 
>>>> rsync -a  -c  -v --delete  --timeout=250 --contimeout=30 
>>>> --temp-dir=xxxx srcfile    dstfile rsync is running in
>>>> daemon mode. OS - QNX rsync version - 3.0.9
>>>> 
>>>> On trying to sync same files again sync happened properly.
>>>> 
>>>> Does anybody have similar kind of issues?
>>>> 
>>>> Please help me in this regard.
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
> 
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> 
> 
> 
> 
> 
> -- View this message in context:
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>
> 
Sent from the Samba - rsync mailing list archive at Nabble.com.
> 

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	Kevin Korb			Phone:    (407) 252-6853
	Systems Administrator		Internet:
	FutureQuest, Inc.		Kevin at FutureQuest.net  (work)
	Orlando, Florida		kmk at sanitarium.net (personal)
	Web page:			http://www.sanitarium.net/
	PGP public key available on web site.
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