mirror of https://github.com/mkerrisk/man-pages
da0d60febb
Jeff Layton:
The difference here is subtle. The gracetime is how long after a reboot
should knfsd allow clients to reclaim state (and deny the creation of
new locks and opens). The leasetime is how long the NFSv4 lease period
is. There is a relationship between the two that's illustrated in the
comments above write_gracetime:
/**
* write_gracetime - Set or report current NFSv4 grace period time
*
* As above, but sets the time of the NFSv4 grace period.
*
* Note this should never be set to less than the *previous*
* lease-period time, but we don't try to enforce this. (In the common
* case (a new boot), we don't know what the previous lease time was
* anyway.)
*/
The value you're interested in here is the nfsv4leasetime. If the
client doesn't renew its lease within that period, then it's subject to
the server giving up on it and dropping any state that it holds on that
clients' behalf.
Note that this is not a firm timeout. The server runs a job
periodically to clean out expired stateful objects, and it's likely
that there is some time (maybe even up to another whole lease period)
between when the timeout expires and the job actually runs. If the
client gets a RENEW in there within that window, its lease will be
renewed and its state preserved.
Reported-by: Jeff Layton <jlayton@poochiereds.net>
Cowritten-by: Jeff Layton <jlayton@poochiereds.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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| man2 | ||
| man3 | ||
| man4 | ||
| man5 | ||
| man6 | ||
| man7 | ||
| man8 | ||
| scripts | ||
| Changes | ||
| Changes.old | ||
| Makefile | ||
| README | ||
| man-pages-3.69.Announce | ||
| man-pages-3.69.lsm | ||
README
This package contains Linux man pages for sections 2, 3, 4, 5, and 7. Some more information is given in the `Announce' file. Install by copying to your favourite location. "make install" will just copy them to /usr/share/man/man[1-8]. To install to a path different from /usr use "make install prefix=/install/path". "make" will move the pages from this package that are older than the already installed ones to a subdirectory `not_installed', then remove old versions (compressed or not), compress the pages, and copy them to /usr/share/man/man[1-8]. Note that you may have to remove preformatted pages. Note that sometimes these pages are duplicates of pages also distributed in other packages. This has been reported about dlclose.3, dlerror.3, dlopen.3, dlsym.3 (found in ld.so), about resolver.3, resolv.conf.5 (found in bind-utils), and about passwd.5, and mailaddr.7. Be careful not to overwrite more up-to-date versions. Reports on further duplicates are welcome. Formerly present and now removed duplicates: exports.5 (found in nfs-server-2.2*), fstab.5, nfs.5 (found in util-linux-2.12*), lilo.8, lilo.conf.5 (found in lilo-21.6*). Copyrights: These man pages come under various copyrights. All pages are freely distributable when the nroff source is included. If you have corrections and additions to suggest, see http://www.kernel.org/doc/man-pages/contributing.html