OpenZFS on Linux and FreeBSD
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Paul Dagnelie 17e212652d
Prevent zevent list from consuming all of kernel memory
There are a couple changes included here. The first is to introduce 
a cap on the size the ZED will grow the zevent list to. One million 
entries is more than enough for most use cases, and if you are 
overflowing that value, the problem needs to be addressed another 
way. The value is also tunable, for those who want the limit to be 
higher or lower. 
 
The other change is to add a kernel module parameter that allows 
snapshot creation/deletion to be exempted from the history logging; 
for most workloads, having these things logged is valuable, but for 
some workloads it produces large quantities of log spam and isn't 
especially helpful.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Issue #13374 
Closes #13753
2022-08-22 12:36:22 -07:00
.github Replace EXTRA_DIST with dist_noinst_DATA 2022-05-26 09:24:50 -07:00
cmd Prevent zevent list from consuming all of kernel memory 2022-08-22 12:36:22 -07:00
config Linux 6.0 compat: register_shrinker() now var-arg 2022-08-08 16:18:30 -07:00
contrib contrib: dracut: zfs-snapshot-bootfs: exit status fix 2022-08-12 14:28:15 -07:00
etc Enable -Wwrite-strings 2022-06-29 14:08:54 -07:00
include Linux 6.0 compat: register_shrinker() now var-arg 2022-08-08 16:18:30 -07:00
lib libzfs: Remove unused zpool_get_physpath() 2022-08-04 17:04:09 -07:00
man Prevent zevent list from consuming all of kernel memory 2022-08-22 12:36:22 -07:00
module Prevent zevent list from consuming all of kernel memory 2022-08-22 12:36:22 -07:00
rpm rpm: Silence "unversioned Obsoletes" warnings on EL 9 2022-07-11 11:35:01 -07:00
scripts Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
tests Enable relatime by default 2022-08-12 14:20:25 -07:00
udev Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore autoconf: use include directives instead of recursing down cmd 2022-05-10 10:18:38 -07:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
AUTHORS Introduce BLAKE3 checksums as an OpenZFS feature 2022-06-08 15:55:57 -07:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
META Linux 5.19 compat: META 2022-08-02 10:04:38 -07:00
Makefile.am Replace EXTRA_DIST with dist_noinst_DATA 2022-05-26 09:24:50 -07:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md README: Update OpenZFS website url 2022-01-06 16:25:01 -08:00
RELEASES.md Add RELEASES.md file 2021-04-02 16:33:40 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
autogen.sh autogen.sh: paper over automake <1.14's lack of %reldir% support 2022-05-10 10:20:46 -07:00
configure.ac Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
copy-builtin copy-builtin: add hooks with sed/>> 2022-05-10 10:17:43 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

Release

OpenZFS is released under a CDDL license. For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.