On Fri, 2013-12-20 at 20:11 +0100, nicolas prochazka wrote: > ok, > so discon mode cannot work ?
I didn't say that. However, as it turns out, the cache manager appears to be discarding volume-level information, such as the name-to-id mappings you need to evaluate mount points. What this means is that traversing mount points may not work after a while. As far as I can tell from a quick examination of the relevant code, this is a real bug for which the fix will be nontrivial. > and is it possible to define callback expiration time ? ( hacking code is > a solution for me, 2h=>24h) You can have the fileserver give out longer callbacks, but I don't recommend significant increases unless your cell has a very small number of clients. Callback expiration is designed to bound the amount of data the fileserver needs to keep about outstanding callbacks, and increasing that bound will affect the server's memory usage. In practice, it looks like the problem you're seeing is likely related to the expiration of whole-volume callbacks on readonly volumes. You may be able to increase the whole-volume callback time beyond the default 2 hours, but again, I'd be careful about this. It's not necessary for online operation, and will have an effect on server memory usage. -- Jeff _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
