On Nov 28, 2007 3:20 PM, Jerry Normandin <[EMAIL PROTECTED]> wrote: > Hello > > I'm working on solving an AFS issue that has been a problem at my > employer before I arrived here. Performance in general has been poor, much > slower than NFS. I ran bonnie++ to check this out and apparently read/write > performance was not bad, it was file creation, deletion and renaming that > took forever. >
What's the underlying filesystem? AFS passes through the semantics of metadata operations of the underlying filesystem, and ext* for instance is poor at it. > Looking further this was do to the fact when transactions like this are > done, it invalidates the cache, so the filesystem must be reread. When you > are in a software development environment this is a problem. Engineers > checking out an entire trunk to their AFS home would take FOREVER. So > digging further it appears that code Has been added to improve performance. > > Yes. > We are running an old version of AFS.. 1.4.1. Are there any > configuration differences between 1.4.1 and 1.5.7? > Lots. Of course, we recommend 1.4.5, and not some random 1.5, especially not an old one. 1.5.7 is similarly old to 1.4.1. > Is there a FAQ posted regarding the upgrade? > "Replace the binaries and restart" > Can I have a mixed environment of versions? > Unless you have pts supergroups enabled, yes, though there is a pending bug regarding moving volumes between current 1.5.x and 1.4.x. >
