zfs/man
Serapheim Dimitropoulos f66ffe6878
Expose zfs_vdev_open_timeout_ms as a tunable
Some of our customers have been occasionally hitting zfs import failures
in Linux because udevd doesn't create the by-id symbolic links in time
for zpool import to use them. The main issue is that the
systemd-udev-settle.service that zfs-import-cache.service and other
services depend on is racy. There is also an openzfs issue filed (see
https://github.com/openzfs/zfs/issues/10891) outlining the problem and
potential solutions.

With the proper solutions being significant in terms of complexity and
the priority of the issue being low for the time being, this patch
exposes `zfs_vdev_open_timeout_ms` as a tunable so people that are
experiencing this issue often can increase it as a workaround.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Don Brady <don.brady@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes #14133
2022-11-03 15:02:46 -07:00
..
man1 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
man4 Expose zfs_vdev_open_timeout_ms as a tunable 2022-11-03 15:02:46 -07:00
man5 Consistentify miscellaneous style on remaining manpages 2021-06-09 14:35:53 -07:00
man7 Add options to zfs redundant_metadata property 2022-10-19 17:07:51 -07:00
man8 zstream: allow decompress to fix metadata for uncompressed records 2022-10-14 13:40:00 -07:00
Makefile.am Add Linux namespace delegation support 2022-06-10 09:51:46 -07:00