This is actually one of the reasons I stopped using replication, once I finally got it working. Hardlinks have saved my butt more than once, and saved a buttload of storage space, as well. Being a media company, we sometimes have huge files CC'd to 4-5 people.
I think this would be an excellent idea, and would definitely reconsider using replication at this site if this was implemented. Thanks, Michael Design / Hosting / Print / E-Media ------------------------------------ Michael King, Systems Administrator Web International, Inc. 523 Louisiana Street, Suite 500 Little Rock, AR 72201 USA 501.372.0393 voice 501.372.1599 fax [EMAIL PROTECTED] http://www.webinternational.net > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:info-cyrus- > [EMAIL PROTECTED] On Behalf Of Roland Pope > Sent: Thursday, March 30, 2006 3:38 PM > To: info-cyrus@lists.andrew.cmu.edu > Subject: 2.3 Replication and lost Hardlinks > > Hi All, > > It would appear from my testing of the new 2.3 Replication code, that you > lose any 'SingleInstanceStore' benefits on the replica as hardlinks on the > master cannot be reproduced on the replica. > In my situation, I often have large emails sent to multiple recipients on > the same server and I am relying on hardlinks to keep my disk usage down. > In addition, I also have a small pipe between my master and my replica and > any large emails sent to hundreds of users gets copied over the link > hundreds times rather that the single delivery done by LMTP. > I was thinking that maybe one way to solve this might be to have Cyrus to > keep it's own DB of hardlinked Messages and then it could send a > replication > message that effectively resolves to "If you don't have message user.xxxx > 'nnnn', see if you can create it by hardlinking to one of the following > messages 'user.foo nnnn,user.bar.Filed nnnn' (if the message hash is the > same), otherwise I will send you a copy". > Then when you subsequently replicate "user.bar.Filed nnnnn", you should be > able to link the message in from the copy you replicated to 'user.xxxx'. > It would obviously be a little more complicated to deal with some corner > cases, but what are people's thoughts? > Is it worth trying to build something like this? > Do any others on the list make heavy use of hardlinking who would be > adversely effected by the current replication methodology? > > Cheers, > Roland > > ---- > Cyrus Home Page: http://asg.web.cmu.edu/cyrus > Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu > List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
