[Csync2] speed of "-cr /"

[Lars Ellenberg]

On Sat, Jun 05, 2010 at 02:46:48AM +1000, Aristedes Maniatis wrote:
> When I want to check all files for updates, I need to run 'csync -cr /'. But that command is far too slow.
> 
> Looking at the configuration, I might only be Including a dozen folders in various parts of the filesystem and if I perform:
> 
>   csync -cr /usr/local/etc/apache22
> 
> for instance, then the command is extremely fast. Why does csync not
> look at the values of the 'include' statements when traversing through
> the file system to check for file changes?

csync2 -cr /
does exactly that:
it looks at its database, and stats all files listed in that database,
as well as directories, and compares the recorded stat info with the
"live" stat info.

In case a directory stat info has changed, that directory needs to be
scanned for potentially added files.

Excludes (or non-includes) are respected.

> I don't want to have to
> call csync separately with every path I've already gone to the trouble
> of "including" in the config file.

csync2 does already what you ask for.

You may add a few -v to your csync2 command line,
or use strace, to see what it is doing?

If all else fails, contact someone experienced with csync2
(read: LINBIT) for consultancy ;-)

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

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