Russ Allbery schrieb:
I'm aware of the following (largish) things that we want to deprecate or remove: * --enable-fast-restart and --enable-bitmap-later are earlier attempts to solve the problem that is solved in a more complete way by demand attach. Demand attach will be available in 1.6 but not enabled by default. These two options will conflict with demand-attach; in other words, you won't be able to enable either of them and demand attach at the same time. At the point at which we make demand attach the default, rather than optional behavior, I believe we should remove the code for these two flags. I think that should be for either 1.10 or 2.0 based on experience with running 1.6 in production. In the meantime, please be aware that most of the developers don't build with those flags by default and the code is not heavily tested.
I'm concerned about removing the code for fast-restart and bitmap-later just because DAFS becomes the default.
We've been running with our own "on-demand-attach" since 5-6 years in 1.2 and 1.4 with perfect satisfaction, and given its size and impact on the code I'd rather wait until DAFS gets a decent share of debugging before considering to move to it.
On the other hand, salvaging a complete file server just because of a crash is not an option, and removing anything that's required for it, be it fast-restart, bitmap-later or whatever, becomes a show-stopper!
-- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Rainer Toebbicke European Laboratory for Particle Physics(CERN) - Geneva, Switzerland Phone: +41 22 767 8985 Fax: +41 22 767 7155 _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
