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Don Brady 8afac5dc55 Avoid posting duplicate zpool events
Duplicate io and checksum ereport events can misrepresent that
things are worse than they seem. Ideally the zpool events and the
corresponding vdev stat error counts in a zpool status should be
for unique errors -- not the same error being counted over and over.
This can be demonstrated in a simple example. With a single bad
block in a datafile and just 5 reads of the file we end up with a
degraded vdev, even though there is only one unique error in the pool.

The proposed solution to the above issue, is to eliminate duplicates
when posting events and when updating vdev error stats. We now save
recent error events of interest when posting events so that we can
easily check for duplicates when posting an error.

Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #10861
2020-09-09 10:26:00 -07:00
.github Add Stale-bot 2020-08-24 12:04:38 -07:00
cmd Add 'zfs rename -u' to rename without remounting 2020-09-03 16:16:15 -07:00
config Linux 5.9 compat: NR_SLAB_RECLAIMABLE 2020-08-30 14:18:50 -07:00
contrib Remove vestigial settings related to initramfs 2020-08-22 11:04:49 -07:00
etc Fix another dependency loop 2020-08-30 14:18:45 -07:00
include Avoid posting duplicate zpool events 2020-09-09 10:26:00 -07:00
lib Fixes for running FreeBSD buildworld on Linux/macOS hosts 2020-09-09 10:21:11 -07:00
man Avoid posting duplicate zpool events 2020-09-09 10:26:00 -07:00
module Avoid posting duplicate zpool events 2020-09-09 10:26:00 -07:00
rpm Use correct prefix for share/pam-configs 2020-07-30 09:09:46 -07:00
scripts ZTS: Remove leftover variable names 2020-08-22 11:05:59 -07:00
tests Avoid posting duplicate zpool events 2020-09-09 10:26:00 -07:00
udev Centralize variable substitution 2020-07-14 17:33:44 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add zstd support to zfs 2020-08-20 10:30:06 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
CODE_OF_CONDUCT.md Add CODE_OF_CONDUCT.md 2019-04-30 10:58:45 -07:00
configure.ac Add zstd support to zfs 2020-08-20 10:30:06 -07:00
copy-builtin Move zfs_gitrev.h to build directory 2020-06-24 18:19:28 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
cppcheck-suppressions.txt Import ZStandard v1.4.5 2020-08-20 10:30:06 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Silence 'make checkbashisms' 2020-08-20 13:45:47 -07:00
META Tag 2.0.0-rc1 2020-08-25 13:11:25 -07:00
NEWS Fix NEWS file 2020-08-27 16:07:01 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Update wiki links with new address 2020-06-03 19:46:31 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

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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 Linux distribution can be found at the ZoL Site.

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 12-STABLE and 13-CURRENT.