On Fri, 05 Oct 2007 13:39:26 -0600 Orion Poplawski <orion@xxxxxxxxxxxxx> wrote: > I just recently got bitten by issues accessing sqlite databases over > NFS (trying to run pungi on Fedora devel and putting the output on > our F7 fileserver). Now, http://www.sqlite.org/faq.html#q5 > explicitly states that one should avoid this: > > But use caution: this locking mechanism might not work correctly if > the database file is kept on an NFS filesystem. This is because > fcntl() file locking is broken on many NFS implementations. You > should avoid putting SQLite database files on NFS if multiple > processes might try to access the file at the same time. > > > Now, is NFS fctl() locking really broken going from Fedora devel to > Fedora 7? rpc.statd is running. Filesystem is exported "sync". I don't have an answer to this question, but I can surely agree that trying to compose to a NFS dir did not work for me. I discussed this at length with Seth Vidal and others when I tried (shortly after -d support became available in createrepo) and I think the general consensus there was that createrepo should just avoid these situations and instead use a local file system working dir to create the database and then copy up the database to the destination directory when finished. However I never pursued this and failed to file any RFE bugs about it. Now would probably be a good time for somebody to do that... (: -- Jesse Keating Fedora -- All my bits are free, are yours?
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