Re: tar exclusions
From: Andreas Piesk <a.piesk_at_gmx.net>
Date: Fri, 03 Sep 2010 00:17:36 +0200
Message-ID: <4C802280.3070509_at_gmx.net>
Niall Litchfield schrieb:
> I figured this list would be a good place to ask.I had recently to tar a
> (15g) directory tree on Linux for transfer to a new host. The tree had a
> rather large number of log and trace files that we didn't wish to move.
> No problem build an exclusion list and use
>
> tar -X <file> -cpvzf <tarfile> <directory>
>
> I killed this after 10 hours. I then removed the old log and trace files
> saving about 1gb of space only and created a new (blank) exclusion list
>
> tar -X <file> -cpvf <tarfile> <directory>
>
> took 40 mins. Is this likely to be a side effect of removing compression
> (the server was pretty much idle apart from me so I didn't expect the
> cpu cycles to be an issue) or of having a ludicrously large exclusion
> list.
Date: Fri, 03 Sep 2010 00:17:36 +0200
Message-ID: <4C802280.3070509_at_gmx.net>
Niall Litchfield schrieb:
> I figured this list would be a good place to ask.I had recently to tar a
> (15g) directory tree on Linux for transfer to a new host. The tree had a
> rather large number of log and trace files that we didn't wish to move.
> No problem build an exclusion list and use
>
> tar -X <file> -cpvzf <tarfile> <directory>
>
> I killed this after 10 hours. I then removed the old log and trace files
> saving about 1gb of space only and created a new (blank) exclusion list
>
> tar -X <file> -cpvf <tarfile> <directory>
>
> took 40 mins. Is this likely to be a side effect of removing compression
> (the server was pretty much idle apart from me so I didn't expect the
> cpu cycles to be an issue) or of having a ludicrously large exclusion
> list.
most likely due compression, it runs sequential. i usually use pbzip2 for compressing large amount of data. pbzip2 runs parallel and saves a lot of time. if you prefer gzip, use pigz.
regards,
-ap
-- http://www.freelists.org/webpage/oracle-lReceived on Thu Sep 02 2010 - 17:17:36 CDT