file corruption

[anuragmnnit2004]

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
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> 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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