Commit Graph

1050 Commits

Author SHA1 Message Date
José Luis Salvador Rufo
aef1830f93
Support uClibc for the tests compilations
There are two issues that don't allow ZFS to be compiled using uClibc.
`backtrace()`, and `program_invocation_short_name` as a `const`.
This patch adds uClibc to the conditionals in the same way there are
already for Glibc for `backtrace()`; and removes the external param
`program_invocation_short_name` because its only used here for the
whole project.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: José Luis Salvador Rufo <salvador.joseluis@gmail.com>
Closes #11600
2021-02-16 21:51:46 -08:00
Arshad Hussain
677cdf7865
vdev_id: Support daisy-chained JBODs in multipath mode
Within function sas_handler() userspace commands like
'/usr/sbin/multipath' have been replaced with sourcing
device details from within sysfs which reduced a
significant amount of overhead and processing time.
Multiple JBOD enclosures and their order are sourced
from the bsg driver (/sys/class/enclosure) to isolate
chassis top-level expanders, which are then dynamically
indexed based on host channel of the multipath subordinate
disk member device being processed. Additionally added a
"mixed" mode for slot identification for environments where
a ZFS server system may contain SAS disk slots where there
is no expander (direct connect to HBA) while an attached
external JBOD with an expander have different slot identifier
methods.

How Has This Been Tested?
~~~~~~~~~~~~~~~~~~~~~~~~~

Testing was performed on a AMD EPYC based dual-server
high-availability multipath environment with multiple
HBAs per ZFS server and four SAS JBODs. The two primary
JBODs were multipath/cross-connected between the two
ZFS-HA servers. The secondary JBODs were daisy-chained
off of the primary JBODs using aligned SAS expander
channels (JBOD-0 expanderA--->JBOD-1 expanderA,
          JBOD-0 expanderB--->JBOD-1 expanderB, etc).
Pools were created, exported and re-imported, imported
globally with 'zpool import -a -d /dev/disk/by-vdev'.
Low level udev debug outputs were traced to isolate
and resolve errors.

Result:
~~~~~~~

Initial testing of a previous version of this change
showed how reliance on userspace utilities like
'/usr/sbin/multipath' and '/usr/bin/lsscsi' were
exacerbated by increasing numbers of disks and JBODs.
With four 60-disk SAS JBODs and 240 disks the time to
process a udevadm trigger was 3 minutes 30 seconds
during which nearly all CPU cores were above 80%
utilization. By switching reliance on userspace
utilities to sysfs in this version, the udevadm
trigger processing time was reduced to 12.2 seconds
and negligible CPU load.

This patch also fixes few shellcheck complains.

Reviewed-by: Gabriel A. Devenyi <gdevenyi@gmail.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Jeff Johnson <jeff.johnson@aeoncomputing.com>
Signed-off-by: Jeff Johnson <jeff.johnson@aeoncomputing.com>
Signed-off-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Closes #11526
2021-02-09 13:04:09 -08:00
nssrikanth
32366649d3
Fixed issue with processing of EC_dev_remove event
The pool guid and vdev guid received by zfs_agent_post_event(),
which calls zfs_retire_recv(), are normally non-zero.  However,
later in this same method they may be unconditionally reset to
zero by the code which is intended to handle  multipath, spare
and l2arc vdevs.  This will result in the EC_dev_remove not
being handled.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>\
Co-authored-by: Vipin Kumar Verma <vipin.verma@hpe.com>
Signed-off-by: Srikanth N S <srikanth.nagasubbaraoseetharaman@hpe.com>
Closes #11564
2021-02-05 08:30:50 -08:00
nssrikanth
cf0a6dd3ed
Added extra check to replace Faulted VDEV with Distributed Spare
In ZED zfs_retire agent added a check to handle Distributed Spare
replacement for Faulted VDEV also.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Vipin Kumar Verma <vipin.verma@hpe.com>
Signed-off-by: Mark Maybee <mark.maybee@hpe.com>
Closes #11354 
Closes #11355
2021-01-28 17:00:26 -08:00
Allan Jude
393e69241e
Add zdb -r <dataset> <object-id | file> <output>
While you can use zdb -R poolname vdev:offset:[<lsize>/]<psize>[:flags] 
to extract individual DVAs from a vdev, it would be handy for be able 
copy an entire file out of the pool.

Given a file or object number, add support to copy the contents to a 
file. Useful for debugging and recovery.

Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes #11027
2021-01-27 21:36:01 -08:00
Brian Behlendorf
0e6c493fec cppcheck: integrete cppcheck
In order for cppcheck to perform a proper analysis it needs to be
aware of how the sources are compiled (source files, include
paths/files, extra defines, etc).  All the needed information is
available from the Makefiles and can be leveraged with a generic
cppcheck Makefile target.  So let's add one.

Additional minor changes:

* Removing the cppcheck-suppressions.txt file.  With cppcheck 2.3
  and these changes it appears to no longer be needed.  Some inline
  suppressions were also removed since they appear not to be
  needed.  We can add them back if it turns out they're needed
  for older versions of cppcheck.

* Added the ax_count_cpus m4 macro to detect at configure time how
  many processors are available in order to run multiple cppcheck
  jobs.  This value is also now used as a replacement for nproc
  when executing the kernel interface checks.

* "PHONY =" line moved in to the Rules.am file which is included
  at the top of all Makefile.am's.  This is just convenient becase
  it allows us to use the += syntax to add phony targets.

* One upside of this integration worth mentioning is it now allows
  `make cppcheck` to be run in any directory to check that subtree.

* For the moment, cppcheck is not run against the FreeBSD specific
  kernel sources.  The cppcheck-FreeBSD target will need to be
  implemented and testing on FreeBSD to support this.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11508
2021-01-26 16:12:26 -08:00
Brian Behlendorf
7454d2bb8d cppcheck: zpool_main.c possible null pointer dereference
Explicitly check for NULL to satisfy cppcheck that "val" can never
be NULL when passed to printf().  This looks like a false positive
since is_blank_str() can never take the false conditional branch
when passed a NULL.  But there's no harm in adding the extra check.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11508
2021-01-26 16:11:46 -08:00
Arshad Hussain
e2870fb24a
vdev_id: Add error message when $CONFIG is missing
It was observed that vdev_id exists silently when
the $CONFIG file is missing.

This patch adds error message in case vdev_id is
called without default $CONFIG or '-c'. This makes
end user observe the exit message more easily.

Before Patch:
~~~~~~~~~~~~~
$ ./cmd/vdev_id/vdev_id
$

After Patch:
~~~~~~~~~~~~
$ ./cmd/vdev_id/vdev_id
Error: Config file "/etc/zfs/vdev_id.conf" not found
$

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Closes #11498
2021-01-23 15:52:29 -08:00
Brian Behlendorf
76e1f78d4b
Only add supported features during pool creation
When creating a pool only features supported by both user and
kernel space should be enabled.  Furthermore, improve the error
messages when attempting to create, or add, a dRAID vdev when
the dRAID feature is not supported by the kernel modules.

Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11492
2021-01-22 09:47:06 -08:00
Matthew Ahrens
aa755b3549
Set aside a metaslab for ZIL blocks
Mixing ZIL and normal allocations has several problems:

1. The ZIL allocations are allocated, written to disk, and then a few
seconds later freed.  This leaves behind holes (free segments) where the
ZIL blocks used to be, which increases fragmentation, which negatively
impacts performance.

2. When under moderate load, ZIL allocations are of 128KB.  If the pool
is fairly fragmented, there may not be many free chunks of that size.
This causes ZFS to load more metaslabs to locate free segments of 128KB
or more.  The loading happens synchronously (from zil_commit()), and can
take around a second even if the metaslab's spacemap is cached in the
ARC.  All concurrent synchronous operations on this filesystem must wait
while the metaslab is loading.  This can cause a significant performance
impact.

3. If the pool is very fragmented, there may be zero free chunks of
128KB or more.  In this case, the ZIL falls back to txg_wait_synced(),
which has an enormous performance impact.

These problems can be eliminated by using a dedicated log device
("slog"), even one with the same performance characteristics as the
normal devices.

This change sets aside one metaslab from each top-level vdev that is
preferentially used for ZIL allocations (vdev_log_mg,
spa_embedded_log_class).  From an allocation perspective, this is
similar to having a dedicated log device, and it eliminates the
above-mentioned performance problems.

Log (ZIL) blocks can be allocated from the following locations.  Each
one is tried in order until the allocation succeeds:
1. dedicated log vdevs, aka "slog" (spa_log_class)
2. embedded slog metaslabs (spa_embedded_log_class)
3. other metaslabs in normal vdevs (spa_normal_class)

The space required for the embedded slog metaslabs is usually between
0.5% and 1.0% of the pool, and comes out of the existing 3.2% of "slop"
space that is not available for user data.

On an all-ssd system with 4TB storage, 87% fragmentation, 60% capacity,
and recordsize=8k, testing shows a ~50% performance increase on random
8k sync writes.  On even more fragmented systems (which hit problem #3
above and call txg_wait_synced()), the performance improvement can be
arbitrarily large (>100x).

Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed-by: George Wilson <gwilson@delphix.com>
Reviewed-by: Don Brady <don.brady@delphix.com>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11389
2021-01-21 15:12:54 -08:00
Antonio Russo
0ae733c7a4
Install zgenhostid to sbindir
zgenhostid(8) is used to modify or create /etc/hostid.  This
administrative tool is currently installed to bindir.  System utilities
are typically placed in sbin.

Modify the installation directory for zgenhostid.  Additionally, track
this change in its use in dracut and the rpm installation.

Authored-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Authored-by: Antonio Russo <aerusso@aerusso.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <aerusso@aerusso.net>
Closes #11485
2021-01-21 12:58:24 -08:00
Matthew Ahrens
e2af2acce3
allow callers to allocate and provide the abd_t struct
The `abd_get_offset_*()` routines create an abd_t that references
another abd_t, and doesn't allocate any pages/buffers of its own.  In
some workloads, these routines may be called frequently, to create many
abd_t's representing small pieces of a single large abd_t.  In
particular, the upcoming RAIDZ Expansion project makes heavy use of
these routines.

This commit adds the ability for the caller to allocate and provide the
abd_t struct to a variant of `abd_get_offset_*()`.  This eliminates the
cost of allocating the abd_t and performing the accounting associated
with it (`abdstat_struct_size`).  The RAIDZ/DRAID code uses this for
the `rc_abd`, which references the zio's abd.  The upcoming RAIDZ
Expansion project will leverage this infrastructure to increase
performance of reads post-expansion by around 50%.

Additionally, some of the interfaces around creating and destroying
abd_t's are cleaned up.  Most significantly, the distinction between
`abd_put()` and `abd_free()` is eliminated; all types of abd_t's are
now disposed of with `abd_free()`.

Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Issue #8853 
Closes #11439
2021-01-20 11:24:37 -08:00
sterlingjensen
03f036cbcc
Re-apply path sanitizer, as mount(8) still mangles it
Prior to util-linux 2.36.2, if a file or directory in the
current working directory was named 'dataset' then mount(8)
would prepend the current working directory to the dataset.

Eventually, we should be able to drop this workaround.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Sterling Jensen <sterlingjensen@users.noreply.github.com>
Closes #11295 
Closes #11462
2021-01-19 11:57:31 -08:00
Ryan Moeller
a9eaae065b
ztest: Clean up use of ASSERT and VERIFY
Try to use more appropriate ASSERT and VERIFY variants in ztest.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11454
2021-01-12 17:21:01 -08:00
Ryan Moeller
bea3fc71ae
ztest: Use fnvlist_* instead of VERIFYing nvlist_*
Simplify ztest by using fnvlist functions to verify success.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matt Ahrens <matt@delphix.com>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11441
2021-01-11 09:30:33 -08:00
Matthew Ahrens
2ac90457f5
record ioctl elapsed time in zpool history
Each zfs ioctl that changes on-disk state (e.g. set property, create
snapshot, destroy filesystem) is recorded in the zpool history, and is
printed by `zpool history -i`.

For performance diagnostic purposes, it would be useful to know how long
each of these ioctls took to run.  This commit adds that functionality,
with a new `ZPOOL_HIST_ELAPSED_NS` member of the history nvlist.

Additionally, the time recorded in this history log is currently the
time that the history record is written to disk.  But in many cases (CLI
args logging and ioctl logging), this happens asynchronously,
potentially many seconds after the operation completed.  This commit
changes the timestamp to reflect when the history event was created,
rather than when it was written to disk.

Reviewed-by: Mark Maybee <mmaybee@cray.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11440
2021-01-11 09:29:25 -08:00
Matthew Ahrens
808e681238 Memory leak in zdb:import_checkpointed_state()
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11396
2020-12-28 10:05:55 -08:00
Matthew Ahrens
f014700a37 Memory leak in ztest_dmu_objset_own()
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11396
2020-12-28 10:05:44 -08:00
Matthew Ahrens
a0316ad268 Memory leak in ztest_vdev_attach_detach()
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11396
2020-12-28 10:05:32 -08:00
Matthew Ahrens
b6722b871b nvlist leaked in zpool_find_config()
In `zpool_find_config()`, the `pools` nvlist is leaked.  Part of it (a
sub-nvlist) is returned in `*configp`, but the callers also leak that.

Additionally, in `zdb.c:main()`, the `searchdirs` is leaked.

The leaks were detected by ASAN (`configure --enable-asan`).

This commit resolves the leaks.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11396
2020-12-28 10:05:31 -08:00
Ryan Moeller
8fbd31d761
dbufstat: Fix warnings with Python 3.8
Replace "is" with "==" and "is not" with "!=".

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11394
2020-12-23 15:10:35 -08:00
Prawn
77f09e2932
ZED/zfs-list-cacher.sh: don't exit on ignored event type
Check for the history_event type instead.

The zfs-list-cacher.sh script currently respects the event types
excluded from syslog(!) in ZED_SYSLOG_SUBCLASS_EXCLUDE.
This makes little sense in this single-purpose script and
silently breaks when history_events are excluded from syslog,
which is the default since 13d65987a9.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: InsanePrawn <insane.prawny@gmail.com>
Closes #11164
Closes #11347
2020-12-18 09:34:10 -08:00
sterlingjensen
fb188409f1
Use the correct return type for getopt
Use the correct return type for getopt otherwise clang complains
about tautological-constant-out-of-range-compare.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Sterling Jensen <sterlingjensen@users.noreply.github.com>
Closes #11359
2020-12-17 10:19:30 -08:00
Alexander Motin
f8020c9363
Make metaslab class rotor and aliquot per-allocator.
Metaslab rotor and aliquot are used to distribute workload between
vdevs while keeping some locality for logically adjacent blocks.  Once
multiple allocators were introduced to separate allocation of different
objects it does not make much sense for different allocators to write
into different metaslabs of the same metaslab group (vdev) same time,
competing for its resources.  This change makes each allocator choose
metaslab group independently, colliding with others only sporadically.

Test including simultaneous write into 4 files with recordsize of 4KB
on a striped pool of 30 disks on a system with 40 logical cores show
reduction of vdev queue lock contention from 54 to 27% due to better
load distribution.  Unfortunately it won't help much ZVOLs yet since
only one dataset/ZVOL is synced at a time, and so for the most part
only one allocator is used, but it may improve later.

While there, to reduce the number of pointer dereferences change
per-allocator storage for metaslab classes and groups from several
separate malloc()'s to variable length arrays at the ends of the
original class and group structures.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #11288
2020-12-15 10:55:44 -08:00
Ryan Moeller
695ac5850b arc_summary3: Handle overflowing value width
Some tunables shown by arc_summary3 have string values that may exceed
the normal line length, leaving a negative offset between the name and
value fields.  The negative space is of course not valid and Python
rightly barfs up an exception traceback.

Handle an overflowing value field width by ignoring the line length
and separating the name from the value by a single space instead.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11270
2020-12-11 10:29:53 -08:00
Ryan Moeller
513c196200 FreeBSD: Update usage of py-sysctl
py-sysctl now includes the CTLTYPE_NODE type nodes in the list returned
by sysctl.filter() on FreeBSD head.  It also provides descriptions now.

Eliminate the subprocess call to get descriptions, and filter out the
nodes so we only deal with values.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11318
2020-12-10 15:28:31 -08:00
Érico Nogueira Rolim
957f9681eb
mount_zfs: print strerror instead of errno for error reporting
Tracking down an error message with the errno value can be difficult,
using strerror makes the error message clearer.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Érico Rolim <erico.erc@gmail.com>
Closes #11303
2020-12-09 21:24:59 -08:00
sterlingjensen
1e4667af32
Drop path prefix workaround
Canonicalization, the source of the trouble, was disabled in 9000a9f.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Sterling Jensen <sterlingjensen@users.noreply.github.com>
Closes #11295
2020-12-09 21:24:26 -08:00
Attila Fülöp
0cb40fa389
zpool: Dryrun fails to list some devices
`zpool create -n` fails to list cache and spare vdevs.
`zpool add -n` fails to list spare devices.
`zpool split -n` fails to list `special` and `dedup` labels.
`zpool add -n` and `zpool split -n` shouldn't list hole devices.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #11122
Closes #11167
2020-12-04 14:04:39 -08:00
Ryan Moeller
4b6e2a5a33
Add -u option to 'zfs create'
Add -u option to 'zfs create' that prevents file system from being
automatically mounted. This is similar to the 'zfs receive -u'.

Authored by: pjd <pjd@FreeBSD.org>
FreeBSD-commit: freebsd/freebsd@35c58230e2

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Ported-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11254
2020-12-04 14:01:42 -08:00
Ryan Moeller
0aacde2e9a
FreeBSD: notify userspace when a vdev is removed
This is needed for zfsd to autoreplace vdevs.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11260
2020-12-02 10:20:02 -08:00
Andrew Sun
95a78a035a
Make zpool status "remove:" label print in bold
When ZFS_COLOR is set, zpool status shows row headings in bold,
except for the "remove:" heading. This is a quick fix that makes
it print in bold too.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Andrew Sun <me@andrewsun.com>
Closes #11255
2020-12-01 15:22:51 -08:00
Pavel Snajdr
52c8537513
zpool_influxdb: move to libexec dir
Move the zpool_influxdb command to /usr/libexec/zfs,
and include the /usr/libexec/zfs path in the system search
directory when running the test suite.

Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Pavel Snajdr <snajpa@snajpa.net>
Closes #11156
Closes #11160
Closes #11224
2020-11-28 11:15:57 -08:00
наб
e6c59cd171 zpool: correctly align columns with -p
zpool_expand_proplist() now ignores pl_fixed if its new literal
argument is true.  The rest is a consequence of needing to pass
that down.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiao?=~Dska <nabijaczleweli@nabijaczleweli.xyz>
Closes #11202
2020-11-16 09:26:20 -08:00
Érico Rolim
9c4b6dbb31 zgenhostid: accept hostid arguments equal to zero.
A common usage pattern for zgenhostid, including in the ZFS dracut
module, is running it as:

  zgenhostid $(hostid)

However, zgenhostid only accepted hostid arguments greater than 0, which
meant that, when the output of hostid(1) was "00000000", zgenhostid
would error out, even though 0 is a possible return value for the
gethostid(3) function used by hostid(1):

- On current musl libc, gethostid(3) is a stub that always returns 0.
- On glibc, gethostid(3) will return 0 if /etc/hostid exists but is
  smaller than 4 bytes.

In these cases, it makes more sense for zgenhostid to treat a value of 0
as other parts of the zfs codebase do, meaning that a hostid value
couldn't be determined; therefore, it should attempt to generate a
random value to write into /etc/hostid.

The manpage and usage output have been updated to reflect this.

Whitespace has also been fixed in the usage output.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Georgy Yakovlev <gyakovlev@gentoo.org>
Reviewed-by: Andrew J. Hesford <ajh@sideband.org>
Signed-off-by: Érico Rolim <erico.erc@gmail.com>
Closes #11174
Closes #11189
2020-11-14 17:20:54 -08:00
Matthew Ahrens
d66aab7c08
Assertion failure when logging large output of channel program
The output of ZFS channel programs is logged on-disk in the zpool
history, and printed by `zpool history -i`.  Channel programs can use
10MB of memory by default, and up to 100MB by using the `zfs program -m`
flag.  Therefore their output can be up to some fraction of 100MB.

In addition to being somewhat wasteful of the limited space reserved for
the pool history (which for large pools is 1GB), in extreme cases this
can result in a failure of `ASSERT(length <= DMU_MAX_ACCESS);` in
`dmu_buf_hold_array_by_dnode()`.

This commit limits the output size that will be logged to 1MB.  Larger
outputs will not be logged, instead a entry will be logged indicating
the size of the omitted output.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11194
2020-11-14 10:17:16 -08:00
Brian Behlendorf
b2255edcc0
Distributed Spare (dRAID) Feature
This patch adds a new top-level vdev type called dRAID, which stands
for Distributed parity RAID.  This pool configuration allows all dRAID
vdevs to participate when rebuilding to a distributed hot spare device.
This can substantially reduce the total time required to restore full
parity to pool with a failed device.

A dRAID pool can be created using the new top-level `draid` type.
Like `raidz`, the desired redundancy is specified after the type:
`draid[1,2,3]`.  No additional information is required to create the
pool and reasonable default values will be chosen based on the number
of child vdevs in the dRAID vdev.

    zpool create <pool> draid[1,2,3] <vdevs...>

Unlike raidz, additional optional dRAID configuration values can be
provided as part of the draid type as colon separated values. This
allows administrators to fully specify a layout for either performance
or capacity reasons.  The supported options include:

    zpool create <pool> \
        draid[<parity>][:<data>d][:<children>c][:<spares>s] \
        <vdevs...>

    - draid[parity]       - Parity level (default 1)
    - draid[:<data>d]     - Data devices per group (default 8)
    - draid[:<children>c] - Expected number of child vdevs
    - draid[:<spares>s]   - Distributed hot spares (default 0)

Abbreviated example `zpool status` output for a 68 disk dRAID pool
with two distributed spares using special allocation classes.

```
  pool: tank
 state: ONLINE
config:

    NAME                  STATE     READ WRITE CKSUM
    slag7                 ONLINE       0     0     0
      draid2:8d:68c:2s-0  ONLINE       0     0     0
        L0                ONLINE       0     0     0
        L1                ONLINE       0     0     0
        ...
        U25               ONLINE       0     0     0
        U26               ONLINE       0     0     0
        spare-53          ONLINE       0     0     0
          U27             ONLINE       0     0     0
          draid2-0-0      ONLINE       0     0     0
        U28               ONLINE       0     0     0
        U29               ONLINE       0     0     0
        ...
        U42               ONLINE       0     0     0
        U43               ONLINE       0     0     0
    special
      mirror-1            ONLINE       0     0     0
        L5                ONLINE       0     0     0
        U5                ONLINE       0     0     0
      mirror-2            ONLINE       0     0     0
        L6                ONLINE       0     0     0
        U6                ONLINE       0     0     0
    spares
      draid2-0-0          INUSE     currently in use
      draid2-0-1          AVAIL
```

When adding test coverage for the new dRAID vdev type the following
options were added to the ztest command.  These options are leverages
by zloop.sh to test a wide range of dRAID configurations.

    -K draid|raidz|random - kind of RAID to test
    -D <value>            - dRAID data drives per group
    -S <value>            - dRAID distributed hot spares
    -R <value>            - RAID parity (raidz or dRAID)

The zpool_create, zpool_import, redundancy, replacement and fault
test groups have all been updated provide test coverage for the
dRAID feature.

Co-authored-by: Isaac Huang <he.huang@intel.com>
Co-authored-by: Mark Maybee <mmaybee@cray.com>
Co-authored-by: Don Brady <don.brady@delphix.com>
Co-authored-by: Matthew Ahrens <mahrens@delphix.com>
Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Mark Maybee <mmaybee@cray.com>
Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #10102
2020-11-13 13:51:51 -08:00
sterlingjensen
a4ae4998cb
Fix memleak in cmd/mount_zfs.c
Convert dynamic allocation to static buffer, simplify parse_dataset
function return path. Add tests specific to the mount helper.

Reviewed-by: Mateusz Guzik <mjguzik@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Sterling Jensen <sterlingjensen@users.noreply.github.com>
Closes #11098
2020-11-10 15:50:44 -08:00
Matthew Macy
5fa356ea44
Remove UIO_ZEROCOPY functions structures
The original xuio zero copy functionality has always been unused 
on Linux and FreeBSD.  Remove this disabled code to avoid any
confusion and improve readability.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #11124
2020-10-30 10:00:33 -07:00
Ryan Moeller
76d04993a6
Update references to nonexistent man pages in code
Refer to the correct section or alternative for FreeBSD and Linux.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11132
2020-10-30 08:55:59 -07:00
Cy Schubert
3928ec5339
Restore identification of VDEVs using non-native block size
NAME         STATE     READ WRITE CKSUM
dsk02        ONLINE       0     0     0
  mirror-0   ONLINE       0     0     0
    ada1s4a  ONLINE       0     0     0
    ada2s4a  ONLINE       0     0     0  block size: 512B configured, 4096B native

Reviewed-by: Matt Macy <mmacy@FreeBSD.org>
Reviewed-by: Toomas Soome <tsoome@me.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed off by: Cy Schubert <cy@FreeBSD.org>
Closes #11088
2020-10-22 12:15:17 -07:00
Ryan Moeller
2aaab887bb
arcstat: Add -a and -p options from FreeNAS
Added -a option to automatically print all valid statistics.
Added -p option to suppress scaling of printed data.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Authored by: Nick Principe <32284693+powernap@users.noreply.github.com>
Ported-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11090
2020-10-21 14:09:14 -07:00
Don Brady
13d65987a9
zed syslog entries drop important info
ZED will log zevents summaries to the syslog, however the log entries 
tend to drop event details that can be useful for diagnosis. This is 
especially true for ereport events, like io, checksum, and delay.

Update the all-syslog.sh script to log additional event information.

Add an optional config option, ZED_SYSLOG_DISPLAY_GUIDS, to zed.rc
for choosing GUIDs over names for pool and vdev.

Change the default ZED_SYSLOG_SUBCLASS_EXCLUDE to exclude history_event 
events. These events tend to be frequent, convey no meaningful info, 
and are already logged in the zpool history.

Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #10967
2020-10-19 11:01:00 -07:00
Ryan Moeller
ab6a0e236e
Ignore zpool_influxdb binary
This was requested but forgotten in #10786.

Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <freqlabs@FreeBSD.org>
Closes #11071
2020-10-16 13:21:28 -07:00
Christian Schwarz
61868bb14d
zil_parse: make callback parameters const
Code cleanup, a follow up commit to 4d55ea81.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Co-authored-by: Ryan Moeller <ryan@freqlabs.com>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #11020
2020-10-09 09:34:54 -07:00
Richard Elling
e9527d44e6
Add zpool_influxdb command
A zpool_influxdb command is introduced to ease the collection
of zpool statistics into the InfluxDB time-series database.
Examples are given on how to integrate with the telegraf
statistics aggregator, a companion to influxdb.

Finally, a grafana dashboard template is included to show
how pool latency distributions can be visualized in a
ZFS + telegraf + influxdb  + grafana environment.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Richard Elling <Richard.Elling@RichardElling.com>
Closes #10786
2020-10-09 09:29:21 -07:00
Brian Behlendorf
d0249a4bd0
Replace ZFS on Linux references with OpenZFS
This change updates the documentation to refer to the project
as OpenZFS instead ZFS on Linux.  Web links have been updated
to refer to https://github.com/openzfs/zfs.  The extraneous
zfsonlinux.org web links in the ZED and SPL sources have been
dropped.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11007
2020-10-08 20:10:13 -07:00
Ryan Moeller
73989f4b9e
Make dbufstat work on FreeBSD
With procfs_list kstats implemented for FreeBSD, dbufs are now exposed
as kstat.zfs.misc.dbufs.

On FreeBSD, dbufstats can use the sysctl instead of procfs when no
input file has been given.

Enable the dbufstats tests on FreeBSD.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <freqlabs@FreeBSD.org>
Closes #11008
2020-10-08 09:40:23 -07:00
Toomas Soome
4e84f67a96
zdb should not output binary data on terminal
The zdb is interpreting byte array as textual string in dump_zap,
but there are also binary arrays and we should not output binary
data on terminal.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Signed-off-by: Toomas Soome <tsoome@me.com>
External-issue: https://www.illumos.org/issues/12012
External-issue: https://www.illumos.org/issues/11713
Closes #11006
2020-10-05 14:05:28 -07:00
Allan Jude
cf2667759f
zfs userspace: use zfs_path_to_zhandle so argument can be a path
Change zfs userspace subcommand to use zfs_path_to_zhandle() so that
the provided dataset can be a path (/usr) or a dataset (rpool/usr).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes #8915
2020-09-25 14:37:10 -07:00