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Olaf Faaland 14c240cede Detect long config lock acquisition in mmp 
If something holds the config lock as a writer for too long, MMP will
fail to issue MMP writes in a timely manner.  This will result either in
the pool being suspended, or in an extreme case, in the pool not being
protected.

If the time to acquire the config lock exceeds 1/10 of the minimum
zfs_multihost_interval, report it in the zfs debug log.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes #7212
2018-03-06 15:14:39 -08:00
.github Reduce codecov PR comments 2018-01-09 11:15:55 -08:00
cmd Misc fixes and cleanup for project quota 2018-03-05 12:56:27 -08:00
config Linux 4.16 compat: get_disk_and_module() 2018-03-05 12:44:35 -08:00
contrib Fix some typos 2018-02-28 08:57:10 -08:00
etc Allow modprobe to fail when called within systemd 2018-02-21 14:45:35 -08:00
include Linux 4.16 compat: get_disk_and_module() 2018-03-05 12:44:35 -08:00
lib Misc fixes and cleanup for project quota 2018-03-05 12:56:27 -08:00
man Change checksum & IO delay ratelimit values 2018-03-04 17:34:51 -08:00
module Detect long config lock acquisition in mmp 2018-03-06 15:14:39 -08:00
rpm Fix systemd_ RPM macros usage on Debian-based distributions 2018-02-02 13:50:42 -08:00
scripts Fix free memory calculation on v3.14+ 2018-02-23 08:50:06 -08:00
tests Introduce a destroy_dataset helper 2018-03-06 14:54:57 -08:00
udev Fix spelling 2017-01-03 11:31:18 -06:00
.gitignore Add configure option to enable gcov analysis 2017-09-15 10:24:13 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Project Quota on ZFS 2018-02-13 14:54:54 -08:00
copy-builtin Fix copy-builtin to work with ASAN patch 2018-01-12 09:39:36 -08:00
COPYRIGHT Encryption patch follow-up 2017-10-11 16:54:48 -04:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Allow make checkstyle and paxscript in build dir 2018-02-21 12:35:59 -08:00
META Tag zfs-0.7.0 2017-07-26 10:13:25 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Add scan.coverity.com badge to README 2017-10-30 16:21:24 -07:00
TEST Refresh TEST file to include new variables 2017-11-08 11:09:30 -08:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

img

ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

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Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.