Don Brady 4f07282786 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		2020-09-04 10:34:28 -07:00
..
abd.c	Add gang ABD child to parent gang ABD	2020-07-24 21:09:20 -07:00
aggsum.c	Reduce number of atomic_add() calls in aggsum	2020-02-06 13:21:06 -08:00
arc.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
blkptr.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
bplist.c	Fast Clone Deletion	2019-07-26 10:54:14 -07:00
bpobj.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
bptree.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
bqueue.c	Implement Redacted Send/Receive	2019-06-19 09:48:12 -07:00
btree.c	Fix typo in btree.c	2020-08-17 15:25:37 -07:00
dataset_kstats.c	Fix panic on DilOS with kstat per dataset statistics	2019-09-03 12:12:31 -07:00
dbuf_stats.c	Mark functions as static	2020-06-18 12:20:38 -07:00
dbuf.c	Replace cv_{timed}wait_sig with cv_{timed}wait_idle where appropriate	2020-09-03 20:04:09 -07:00
ddt_zap.c	Refactor dnode dirty context from dbuf_dirty	2020-02-26 16:09:17 -08:00
ddt.c	Remove dead code	2020-06-18 12:21:18 -07:00
dmu_diff.c	Mark write_record static	2019-12-03 09:51:44 -08:00
dmu_object.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
dmu_objset.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
dmu_recv.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
dmu_redact.c	nowait synctask must succeed	2020-09-04 10:29:39 -07:00
dmu_send.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
dmu_traverse.c	Make module tunables cross platform	2019-09-05 14:49:49 -07:00
dmu_tx.c	Refactor dnode dirty context from dbuf_dirty	2020-02-26 16:09:17 -08:00
dmu_zfetch.c	Make module tunables cross platform	2019-09-05 14:49:49 -07:00
dmu.c	Export dmu_offset_next() symbol	2020-08-25 08:34:41 -07:00
dnode_sync.c	dnode_sync is careless with range tree	2020-08-26 21:48:29 -07:00
dnode.c	Fix indentation in dnode_free_range()	2020-08-20 11:45:20 -07:00
dsl_bookmark.c	Fix typos	2020-06-09 21:24:09 -07:00
dsl_crypt.c	Mark functions as static	2020-06-18 12:20:38 -07:00
dsl_dataset.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
dsl_deadlist.c	Fix i/o error handling of livelists and zap iteration	2020-08-05 10:22:09 -07:00
dsl_deleg.c	Reduce loaded range tree memory usage	2019-10-09 10:36:03 -07:00
dsl_destroy.c	Fix i/o error handling of livelists and zap iteration	2020-08-05 10:22:09 -07:00
dsl_dir.c	Add 'zfs rename -u' to rename without remounting	2020-09-01 16:14:16 -07:00
dsl_pool.c	Mark functions as static	2020-06-18 12:20:38 -07:00
dsl_prop.c	Replace sprintf()->snprintf() and strcpy()->strlcpy()	2020-06-07 11:42:12 -07:00
dsl_scan.c	Add device rebuild feature	2020-07-03 11:05:50 -07:00
dsl_synctask.c	nowait synctask must succeed	2020-09-04 10:29:39 -07:00
dsl_userhold.c	Replace sprintf()->snprintf() and strcpy()->strlcpy()	2020-06-07 11:42:12 -07:00
edonr_zfs.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
fm.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
gzip.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
hkdf.c	Encryption patch follow-up	2017-10-11 16:54:48 -04:00
lz4.c	Prefix zfs internal endian checks with _ZFS	2020-07-28 13:02:49 -07:00
lzjb.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
Makefile.in	Move spa_stats.c to common code	2020-08-30 14:12:46 -07:00
metaslab.c	Use zfs_dbgmsg to log metaslab_load/unload	2020-08-12 10:10:50 -07:00
mmp.c	Replace cv_{timed}wait_sig with cv_{timed}wait_idle where appropriate	2020-09-03 20:04:09 -07:00
multilist.c	Make use of ZFS_DEBUG consistent within kmod sources	2020-07-25 20:07:44 -07:00
objlist.c	Implement Redacted Send/Receive	2019-06-19 09:48:12 -07:00
pathname.c	Disable unused pathname::pn_path* (unneeded in Linux)	2019-07-15 13:57:56 -07:00
range_tree.c	Clarify error message when a range-tree double-add occurs	2020-08-07 14:13:13 -07:00
refcount.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
rrwlock.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
sa.c	Remove duplicate dnode.h include	2020-08-26 21:41:09 -07:00
sha256.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
skein_zfs.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
spa_boot.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
spa_checkpoint.c	Refactor dnode dirty context from dbuf_dirty	2020-02-26 16:09:17 -08:00
spa_config.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
spa_errlog.c	Fix typos in module/zfs/	2019-09-02 17:56:41 -07:00
spa_history.c	nowait synctask must succeed	2020-09-04 10:29:39 -07:00
spa_log_spacemap.c	Make module tunables cross platform	2019-09-05 14:49:49 -07:00
spa_misc.c	Add zstd support to zfs	2020-08-20 10:30:06 -07:00
spa_stats.c	Make spa_stats.c tunables visible on FreeBSD	2020-09-01 16:19:19 -07:00
spa.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
space_map.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
space_reftree.c	Reduce loaded range tree memory usage	2019-10-09 10:36:03 -07:00
THIRDPARTYLICENSE.cityhash	OpenZFS 8484 - Implement aggregate sum and use for arc counters	2018-06-06 09:35:59 -07:00
THIRDPARTYLICENSE.cityhash.descrip	OpenZFS 8484 - Implement aggregate sum and use for arc counters	2018-06-06 09:35:59 -07:00
txg.c	Replace cv_{timed}wait_sig with cv_{timed}wait_idle where appropriate	2020-09-03 20:04:09 -07:00
uberblock.c	MMP interval and fail_intervals in uberblock	2019-03-21 12:47:57 -07:00
unique.c	Reduce loaded range tree memory usage	2019-10-09 10:36:03 -07:00
vdev_cache.c	Replace ASSERTV macro with compiler annotation	2019-12-05 12:37:00 -08:00
vdev_indirect_births.c	Fixes: #8934 Large kmem_alloc	2019-07-10 15:54:49 -07:00
vdev_indirect_mapping.c	Replace ASSERTV macro with compiler annotation	2019-12-05 12:37:00 -08:00
vdev_indirect.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
vdev_initialize.c	nowait synctask must succeed	2020-09-04 10:29:39 -07:00
vdev_label.c	Add device rebuild feature	2020-07-03 11:05:50 -07:00
vdev_mirror.c	Import vdev ashift optimization from FreeBSD	2020-08-21 12:53:17 -07:00
vdev_missing.c	Import vdev ashift optimization from FreeBSD	2020-08-21 12:53:17 -07:00
vdev_queue.c	Add device rebuild feature	2020-07-03 11:05:50 -07:00
vdev_raidz_math_aarch64_neon_common.h	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_aarch64_neon.c	Linux 5.0 compat: SIMD compatibility	2019-07-12 09:31:20 -07:00
vdev_raidz_math_aarch64_neonx2.c	Linux 5.0 compat: SIMD compatibility	2019-07-12 09:31:20 -07:00
vdev_raidz_math_avx2.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_avx512bw.c	Refactor ccompile.h to not include system headers	2020-07-25 20:09:50 -07:00
vdev_raidz_math_avx512f.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_impl.h	Fix const-correctness in raidz math	2020-02-03 10:52:41 -08:00
vdev_raidz_math_powerpc_altivec_common.h	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_powerpc_altivec.c	Prefix zfs internal endian checks with _ZFS	2020-07-28 13:02:49 -07:00
vdev_raidz_math_scalar.c	Linux 5.3: Fix switch() fall though compiler errors	2019-08-21 09:29:23 -07:00
vdev_raidz_math_sse2.c	FreeBSD: fix the build with Clang 11	2020-08-17 15:40:17 -07:00
vdev_raidz_math_ssse3.c	Refactor ccompile.h to not include system headers	2020-07-25 20:09:50 -07:00
vdev_raidz_math.c	FreeBSD: disable neon usage	2020-08-26 09:54:37 -07:00
vdev_raidz.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
vdev_rebuild.c	nowait synctask must succeed	2020-09-04 10:29:39 -07:00
vdev_removal.c	nowait synctask must succeed	2020-09-04 10:29:39 -07:00
vdev_root.c	Import vdev ashift optimization from FreeBSD	2020-08-21 12:53:17 -07:00
vdev_trim.c	nowait synctask must succeed	2020-09-04 10:29:39 -07:00
vdev.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
zap_leaf.c	Refactor dnode dirty context from dbuf_dirty	2020-02-26 16:09:17 -08:00
zap_micro.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
zap.c	Rename refcount.h to zfs_refcount.h	2020-07-29 16:35:33 -07:00
zcp_get.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
zcp_global.c	OpenZFS 8600 - ZFS channel programs - snapshot	2018-02-08 15:29:24 -08:00
zcp_iter.c	Fix typos in module/zfs/	2019-09-02 17:56:41 -07:00
zcp_set.c	Support setting user properties in a channel program	2020-02-14 13:41:42 -08:00
zcp_synctask.c	filesystem_limit/snapshot_limit is incorrectly enforced against root	2020-07-11 17:18:02 -07:00
zcp.c	filesystem_limit/snapshot_limit is incorrectly enforced against root	2020-07-11 17:18:02 -07:00
zfeature.c	Replace ASSERTV macro with compiler annotation	2019-12-05 12:37:00 -08:00
zfs_byteswap.c	Mark functions as static	2020-06-18 12:20:38 -07:00
zfs_fm.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
zfs_fuid.c	FreeBSD: Fix UNIX permissions checking	2020-08-18 09:57:07 -07:00
zfs_ioctl.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
zfs_log.c	Add prototypes	2020-06-18 12:21:32 -07:00
zfs_onexit.c	Remove deduplicated send/receive code	2020-04-23 10:06:57 -07:00
zfs_quota.c	File incorrectly zeroed when receiving incremental stream that toggles -L	2020-06-09 10:41:01 -07:00
zfs_ratelimit.c	Change checksum & IO delay ratelimit values	2018-03-04 17:34:51 -08:00
zfs_replay.c	Simplify FreeBSD's locking requirements in zfs_replay.c	2020-01-22 17:55:56 -08:00
zfs_rlock.c	Add a "try" operation for range locks	2020-07-06 11:53:31 -07:00
zfs_sa.c	Add convenience wrappers for common uio usage	2020-06-14 10:09:55 -07:00
zil.c	Mark functions as static	2020-06-18 12:20:38 -07:00
zio_checksum.c	Mark functions as static	2020-06-18 12:20:38 -07:00
zio_compress.c	Avoid symbol collision with in-kernel zstdlib	2020-08-24 12:20:41 -07:00
zio_inject.c	Replace ASSERTV macro with compiler annotation	2019-12-05 12:37:00 -08:00
zio.c	Avoid posting duplicate zpool events	2020-09-04 10:34:28 -07:00
zle.c	Add include files for prototypes	2020-06-18 12:21:25 -07:00
zrlock.c	Remove dead code	2020-06-18 12:21:18 -07:00
zthr.c	Retain thread name when resuming a zthr	2020-09-03 20:09:52 -07:00
zvol.c	Fix typos	2020-06-09 21:24:09 -07:00