Hi Dan: On Fri, Oct 15, 2010 at 11:55 AM, Daniel Rich <[email protected]> wrote:
> In my environment I didn't want to use a ram disk due to the risk of losing > data. The method that worked for me was to create a filesystem on a file > and then use a loop mount to mount the filesystem under > /var/lib/ganglia/rrds. The system then sees it as a single file i/o > operation when you first open the directory, not an individual i/o op every > time an rrd is updated. > > I have not done this with my current server yet, but I'm getting close to > the point where I am going to need to... > > There was a discussion about this on the mailing list ages ago: > http://www.mail-archive.com/[email protected]/msg00553.html Wow, thanks for pointing us to this little gem. I will definitely write it up in the Wiki (or you could do it too, if you like ;-). The only issue I see with this approach is that you can't dynamically grow the RRD directory. When it gets close to filling up, you would need to make a bigger file, then transfer the files over... Although I wonder if LVM could help in this case..? Have you also looked at rrdcached? I am interested in getting some comparison between the two methods. Cheers, Bernard ------------------------------------------------------------------------------ Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
