Fedora definitely won't pause. AFAIK, If the ingest operation had passed the point of policy enforcement before you disabled api-m, it would complete the operation. Otherwise it should just fail with an authorization-related exception.
On 30 Jan 2012, at 8:03 PM, Christopher Emmerich wrote: > > > A followup question - if I disable write access to Fedora for say 5 to 10 > minutes and then do the copy, what would happen if a client process was in > the middle of an ingest operation? Would it just pause until writes were > re-enabled or throw an error? > > > From: Edwin Shin <ed...@fedora-commons.org> > To: "Support and info exchange list for Fedora users." > <fedora-commons-users@lists.sourceforge.net> > Cc: Christopher Emmerich <emmeri...@usgs.gov> > Date: 01/27/2012 02:09 PM > Subject: Re: Using rsync to replicate triplestore > > > > > I was recently working with various scenarios for Fedora replication in > addition to Fedora's Journaling. I'm not familiar with AFS, but if you can > take advantage of some sort snapshotting facility of your filesystem or > volume manager, (e.g. as provided by ZFS or LVM) that might do the trick. > > Alternatively: you say you can't shut down the master, but can you have > Fedora refuse write operations for some window of time while you perform the > rsync? If so, you could deny API-M operations by a policy while you rsync the > Mulgara indices. > See:https://wiki.duraspace.org/pages/viewpage.action?pageId=27001135 > > fyi, Christopher, you should be directing your emails to > fedora-commons-users@lists.sourceforge.net, not owner. I originally just hit > reply and sent the message right back to owner and only now noticed it never > went to the list. > > On 27 Jan 2012, at 6:40 AM, Christopher Emmerich wrote: > > > > > I'm looking for ideas here. For various reasons, I can't use the standard > > replication methodology for creating and maintaining duplicate copies of my > > Fedora Commons repository. Instead, the master server stores the Fedora > > data and Solr index files in read/write AFS directories, while the > > replicate servers access these directories via a read-only copy on > > redundant AFS storage. This doesn't work for the Triplestore, however, > > because Mulgara requires read/write access. Instead I've tried to do a > > nightly rsync of the leader triplestore index files to local disk on the > > Fedora replicates. This only works if none of the master files are > > modified while the rsync is occurring. Otherwise I get errors about out of > > sync records when I try to restart the Tomcat server on the replicate. I > > can't shut the master server down while I do the rsync so I'm wondering if > > there are any other ways to accomplish this file transfer. > > > > ------------------------------------------------------------------------------ > Try before you buy = See our experts in action! > The most comprehensive online learning library for Microsoft developers > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-dev2_______________________________________________ > Fedora-commons-users mailing list > Fedora-commons-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/fedora-commons-users ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Fedora-commons-users mailing list Fedora-commons-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/fedora-commons-users
