holland-discuss team mailing list archive

[Andrew Garner <muzazzi@xxxxxxxxx>]

I'm not too familiar with ldap, but I know some people will backup the
bdb backend directly as an alternative to slapcat.  You may be able to
leverage LVM for that (although I suspect that may not be an option in
your environment), and I believe there is a hotbackup utility for bdb
as well that could be used.   Other backends have other implications
of course (and IIRC, even slapcat won't work consistently for some
backends on an active server).

A few minor things on your code:

* Stylistically, you probably want to use list.append, rather than
list.insert(-1, ..) here
* You don't need to cast to int() here: int(self.config['compression']['level'])
   The configspec/validate_config() part takes care of that for you.
That's one of the reasons holland has configspecs - so you don't have
to convert strings all throughout your plugin.   I see this was taken
from sqlite, but I thought I'd mention it.
* You should close the output stream at the end.  It's actually
forking a command (e.g. gzip) in the background, and close() will
collect it and check the status.  Otherwise the plugin won't report
errors from compression.  stream.close() can raise an IOError - this
is does when the compression command exits non-zero.
* You probably don't want to use os.setsid for subprocess here.
* You probably don't want to actually run the slapcat command if
dry_run is set (Logging list2cmdline may be useful though).

I'm not sure what you mean by DEBUG.  If your debug statements aren't
showing up you probably need to run holland with debug logging:
holland --log-level debug backup ... (or set level = debug in the
holland.conf).   This should work fine - I just ran it yesterday
during testing.

On Wed, Jan 12, 2011 at 1:34 PM, Tim Soderstrom
<tim@xxxxxxxxxxxxxxxxxxxxx> wrote:
> Howdy Folks!
>
> After some Googling, I didn't see a really good backup tool for OpenLDAP. They probably exist and I just suck at Googling but it gave me a good chance to try using the Holland framework to do something both neat and actually useful for my job (which means I can work on it for my workey work time, yay!).
>
> So I have created an OpenLDAP plugin that uses 'slapcat' to produce a backup. 'slapcat' is actually not very feature rich so I am wondering if other methods would be suitable (such as the OpenLDAP Python library) though documentation online seems to point to slapcat for a no frills get 'er down backup. In my testing I had to use it once or twice so it seems to do the trick.
>
> Anyways, I have this in my Holland fork (https://github.com/m00dawg/holland). Any suggestions would be appreciated. My Python foo sort of went away pretty quickly after not using it for a few months so I ended up using the random and sqlite plugins as templates.
>
> If you look at the source files, there not a lot of log debugging going on. I could not get log.DEBUG = ... working for some reason?
>
> By the way, that virtual_env.py script freaking rocks!
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