Shobhit Dayal
2007-Apr-26 23:45 UTC
[Lustre-devel] Re: Lustre-devel Digest, Vol 13, Issue 17
Thanks Brian and Andreas, I think I''ll start looking at the CMD code and see if I can make use of some of it. -Shobhit On 4/25/07, lustre-devel-request@clusterfs.com < lustre-devel-request@clusterfs.com> wrote:> > Send Lustre-devel mailing list submissions to > lustre-devel@clusterfs.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.clusterfs.com/mailman/listinfo/lustre-devel > or, via email, send a message with subject or body ''help'' to > lustre-devel-request@clusterfs.com > > You can reach the person managing the list at > lustre-devel-owner@clusterfs.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Lustre-devel digest..." > > > Today''s Topics: > > 1. Re: Is it possible to introduce multiple mds servers in > lustre (Brian J. Murrell) > 2. Re: Is it possible to introduce multiple mds servers in > lustre (Andreas Dilger) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 25 Apr 2007 11:13:29 -0400 > From: "Brian J. Murrell" <brian@clusterfs.com> > Subject: Re: [Lustre-devel] Is it possible to introduce multiple mds > servers in lustre > To: lustre-devel@clusterfs.com > Message-ID: <1177514009.2415.54.camel@pc.ilinx> > Content-Type: text/plain > > On Wed, 2007-25-04 at 05:09 -0400, Shobhit Dayal wrote: > > Thanks, > > I think I see the direction we need to head in. I guess there are no > > short term hacks to get multiple mds''s up > > in our environment. What we were really interested in was > > demonstrating the dynamic redistribution concept > > with as little change to lustre as possible. But I guess what you are > > saying is that it may not be possible to do that. > > > > Its also helpfull to know the fid''s approach you took for managing > > inode changes. > > > > Thanks for taking so much time out, and writing such detailed mails. > > when manage to bring up something, I''ll let you know :) > > Shobhit, > > Did you see the announcement on this list this morning by Peter Braam > about the Lustre 2.0 code branch snapshot? > > That work contains the CMD (clustered metadata) code to which Andreas > has referred. > > Perhaps that is a good place for you start your work. > > Cheers, > b. > > > > > ------------------------------ > > Message: 2 > Date: Wed, 25 Apr 2007 09:48:07 -0600 > From: Andreas Dilger <adilger@clusterfs.com> > Subject: Re: [Lustre-devel] Is it possible to introduce multiple mds > servers in lustre > To: "Brian J. Murrell" <brian@clusterfs.com> > Cc: lustre-devel@clusterfs.com > Message-ID: <20070425154807.GV5967@schatzie.adilger.int> > Content-Type: text/plain; charset=us-ascii > > On Apr 25, 2007 11:13 -0400, Brian J. Murrell wrote: > > On Wed, 2007-25-04 at 05:09 -0400, Shobhit Dayal wrote: > > > I think I see the direction we need to head in. I guess there are no > > > short term hacks to get multiple mds''s up > > > in our environment. What we were really interested in was > > > demonstrating the dynamic redistribution concept > > > with as little change to lustre as possible. But I guess what you are > > > saying is that it may not be possible to do that. > > > > > > Its also helpfull to know the fid''s approach you took for managing > > > inode changes. > > > > > > Thanks for taking so much time out, and writing such detailed mails. > > > when manage to bring up something, I''ll let you know :) > > > > Did you see the announcement on this list this morning by Peter Braam > > about the Lustre 2.0 code branch snapshot? > > > > That work contains the CMD (clustered metadata) code to which Andreas > > has referred. > > > > Perhaps that is a good place for you start your work. > > I was just going to say the same thing. Starting with the CMD code you > can likely tune the MDT distribution algorithms (which AFAIK is your > main goal) and we''d be happy to see any results you produce on different > algorithms for this. > > Cheers, Andreas > -- > Andreas Dilger > Principal Software Engineer > Cluster File Systems, Inc. > > > > ------------------------------ > > _______________________________________________ > Lustre-devel mailing list > Lustre-devel@clusterfs.com > https://mail.clusterfs.com/mailman/listinfo/lustre-devel > > > End of Lustre-devel Digest, Vol 13, Issue 17 > ******************************************** >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.clusterfs.com/pipermail/lustre-devel/attachments/20070426/655da9fa/attachment.html