On Sat, Jan 28, 2012 at 7:31 AM, Dan Scales <scales@vmware.com> wrote:
> Let me know if you have any thoughts/comments, etc. The patch is
> enclosed, and the README.doublewrites is updated a fair bit.
ISTM that the double-write can prevent torn-pages in neither double-write file
nor data file in *base backup*. Because both double-write file and data file can
be backed up while being written. Is this right? To avoid the torn-page problem,
we should write FPI to WAL during online backup even if the double-write has
been committed?
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center