Commit Graph

6600 Commits

Author SHA1 Message Date
Ryan Moeller 439dc034e9 FreeBSD: Implement sysctl for fletcher4 impl
There is a tunable to select the fletcher 4 checksum implementation on
Linux but it was not present in FreeBSD.

Implement the sysctl handler for FreeBSD and use ZFS_MODULE_PARAM_CALL
to provide the tunable on both platforms.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11270
2020-12-11 10:29:01 -08:00
Matthew Ahrens ba67d82142
Improve zfs receive performance with lightweight write
The performance of `zfs receive` can be bottlenecked on the CPU consumed
by the `receive_writer` thread, especially when receiving streams with
small compressed block sizes.  Much of the CPU is spent creating and
destroying dbuf's and arc buf's, one for each `WRITE` record in the send
stream.

This commit introduces the concept of "lightweight writes", which allows
`zfs receive` to write to the DMU by providing an ABD, and instantiating
only a new type of `dbuf_dirty_record_t`.  The dbuf and arc buf for this
"dirty leaf block" are not instantiated.

Because there is no dbuf with the dirty data, this mechanism doesn't
support reading from "lightweight-dirty" blocks (they would see the
on-disk state rather than the dirty data).  Since the dedup-receive code
has been removed, `zfs receive` is write-only, so this works fine.

Because there are no arc bufs for the received data, the received data
is no longer cached in the ARC.

Testing a receive of a stream with average compressed block size of 4KB,
this commit improves performance by 50%, while also reducing CPU usage
by 50% of a CPU.  On a per-block basis, CPU consumed by receive_writer()
and dbuf_evict() is now 1/7th (14%) of what it was.

Baseline: 450MB/s, CPU in receive_writer() 40% + dbuf_evict() 35%
New: 670MB/s, CPU in receive_writer() 17% + dbuf_evict() 0%

The code is also restructured in a few ways:

Added a `dr_dnode` field to the dbuf_dirty_record_t.  This simplifies
some existing code that no longer needs `DB_DNODE_ENTER()` and related
routines.  The new field is needed by the lightweight-type dirty record.

To ensure that the `dr_dnode` field remains valid until the dirty record
is freed, we have to ensure that the `dnode_move()` doesn't relocate the
dnode_t.  To do this we keep a hold on the dnode until it's zio's have
completed.  This is already done by the user-accounting code
(`userquota_updates_task()`), this commit extends that so that it always
keeps the dnode hold until zio completion (see `dnode_rele_task()`).

`dn_dirty_txg` was previously zeroed when the dnode was synced.  This
was not necessary, since its meaning can be "when was this dnode last
dirtied".  This change simplifies the new `dnode_rele_task()` code.

Removed some dead code related to `DRR_WRITE_BYREF` (dedup receive).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: George Wilson <gwilson@delphix.com>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11105
2020-12-11 10:26:02 -08:00
Paul Dagnelie 7d4b365ce3
Fix kernel panic induced by redacted send
In the redaction list traversal code, there is a bug in the binary search
logic when looking for the resume point. Maxbufid can be decremented to -1,
causing us to read the last possible block of the object instead of the one we
wanted. This can cause incorrect resume behavior, or possibly even a hang in
some cases. In addition, when examining non-last blocks, we can treat the
block as being the same size as the last block, causing us to miss entries in
the redaction list when determining where to resume. Finally, we were ignoring
the case where the resume point was found in the buffer being searched, and
resuming from minbufid. All these issues have been corrected, and the code has
been significantly simplified to make future issues less likely.

Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #11297
2020-12-11 10:22:29 -08:00
Ryan Moeller 8c5606ca0b FreeBSD: Fix format of vfs.zfs.arc_no_grow_shift
vfs.zfs.arc_no_grow_shift has an invalid type (15) and this causes
py-sysctl to format it as a bytearray when it should be an integer.

"U" is not a valid format, it should be "I" and the type should match
the variable type, int.  We can return EINVAL if the value is set below
zero.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11318
2020-12-10 15:28:56 -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
Brian Behlendorf e5f732edbb
Fix possibly uninitialized 'root_inode' variable warning
Resolve an uninitialized variable warning when compiling.

    In function ‘zfs_domount’:
    warning: ‘root_inode’ may be used uninitialized in this
        function [-Wmaybe-uninitialized]
    sb->s_root = d_make_root(root_inode);

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11306
2020-12-10 15:23:26 -08:00
Paul Dagnelie 60a4c7d2a2
Implement memory and CPU hotplug
ZFS currently doesn't react to hotplugging cpu or memory into the 
system in any way. This patch changes that by adding logic to the ARC 
that allows the system to take advantage of new memory that is added 
for caching purposes. It also adds logic to the taskq infrastructure 
to support dynamically expanding the number of threads allocated to a 
taskq.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Matthew Ahrens <matthew.ahrens@delphix.com>
Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #11212
2020-12-10 14:09:23 -08:00
Brian Behlendorf f483daa870
CI: add zloop workflow
Run ztest via zloop for 20 minutes, total run time is ~30 minutes.

Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #11319
2020-12-10 10:55:53 -08:00
George Melikov 5053dfa08c CI: add zloop workflow
Run ztest via zloop for 20 minutes, total run time is ~30 minutes.

Signed-off-by: George Melikov <mail@gmelikov.ru>
2020-12-10 20:46:15 +03:00
Ryan Moeller e0716250bf
FreeBSD: Do zcommon_init sooner to avoid FPU panic
There has been a panic affecting some system configurations where the
thread FPU context is disturbed during the fletcher 4 benchmarks,
leading to a panic at boot.

module_init() registers zcommon_init to run in the last subsystem
(SI_SUB_LAST).  Running it as soon as interrupts have been configured
(SI_SUB_INT_CONFIG_HOOKS) makes sure we have finished the benchmarks
before we start doing other things.

While it's not clear *how* the FPU context was being disturbed, this
does seem to avoid it.

Add a module_init_early() macro to run zcommon_init() at this earlier
point on FreeBSD.  On Linux this is defined as module_init().

Authored by: Konstantin Belousov <kib@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11302
2020-12-09 21:29:00 -08:00
Attila Fülöp b9916b4064
ZTS: three small follow up fixes for #11167
Follow up fix for 0cb40fa3. Remove unused variables, don't source
unused libs and add missed cleanup.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #11311
2020-12-09 21:27:12 -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
Orivej Desh ab4fb9b74e
Delete rw_semaphore.wait_lock configure check
Last use of wait_lock was removed in "Linux 5.3 compat: retire
rw_tryupgrade()" (e7a99dab2b).

Fixes the issue reported in
https://github.com/openzfs/zfs/issues/11097#issuecomment-714532367

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Orivej Desh <orivej@gmx.fr>
Closes #11309
2020-12-09 21:22:54 -08:00
Matthew Macy 1e4732cbda
Decouple arc_read_done callback from arc buf instantiation
Add ARC_FLAG_NO_BUF to indicate that a buffer need not be
instantiated.  This fixes a ~20% performance regression on
cached reads due to zfetch changes.

Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #11220 
Closes #11232
2020-12-09 15:05:06 -08:00
Brian Behlendorf edb20ff3ba
Fix optional "force" arg handing in zfs_ioc_pool_sync()
The fnvlist_lookup_boolean_value() function should not be used
to check the force argument since it's optional.  It may not be
provided or may have been created with the wrong flags.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11281
Closes #11284
2020-12-09 14:52:45 -08:00
George Melikov 1a735e763a
CI: add new zfs-tests-sanity workflow
Run zfs-tests with sanity.run for brief results.  Timeouts
are rare, so minimize false positives by increasing the
default from 60 to 180 seconds.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #11304
2020-12-08 09:53:45 -08:00
George Melikov 8e8fdce682
ZTS: zpool_trim tests throttle trim process
Otherwise trim may finish before progress checks.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #11296
2020-12-07 10:06:10 -08:00
Brian Behlendorf 83b698dc42
Reduce fletcher4 and raidz benchmark times
During module load time all of the available fetcher4 and raidz
implementations are benchmarked for a fixed amount of time to
determine the fastest available.  Manual testing has shown that this
time can be significantly reduced with negligible effect on the final
results.

This commit changes the benchmark time to 1ms which can reduce the
module load time by over a second on x86_64.  On an x86_64 system
with sse3, ssse3, and avx2 instructions the benchmark times are:

    Fletcher4    603ms   -> 15ms
    RAIDZ        1,322ms -> 64ms

Reviewed-by: Matthew Macy <mmacy@freebsd.org>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11282
2020-12-06 09:57:20 -08:00
Alexander Motin 8136b9d73b
Avoid some spa_has_pending_synctask() calls.
Since 8c4fb36a24 (PR #7795) spa_has_pending_synctask() started to
take two more locks per write inside txg_all_lists_empty().  I am
surprised those pool-wide locks are not contended, but still their
operations are visible in CPU profiles under contended vdev lock.

This commit slightly changes vdev_queue_max_async_writes() flow to
not call the function if we are going to return max_active any way
due to high amount of dirty data.  It allows to save some CPU time
exactly when the pool is busy.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-By: Tom Caputi <caputit1@tcnj.edu>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #11280
2020-12-06 09:55:02 -08:00
Alexander Motin 6366ef2240
Bring consistency to ABD chunk count types.
With both abd_size and abd_nents being uint_t it makes no sense for
abd_chunkcnt_for_bytes() to return size_t.  Random mix of different
types used to count chunks looks bad and makes compiler more difficult
to optimize the code.

In particular on FreeBSD this change allows compiler to completely
optimize out abd_verify_scatter() when built without debug, removing
pointless 64-bit division and even more pointless empty loop.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #11279
2020-12-06 09:53:40 -08:00
Brian Behlendorf eed2bfe06a
Enable ABI checks for the checkstyle workflow
Extend the CI checkstyle workflow to perform the library ABI
checks in the master branch.  The intent is not to prevent any
ABI changes but to detect them immediately so when they're
made it's done intentionally.

When the changing the ABI the `make storeabi` target can be
used to generate a new .abi file which can be included with
the commit.  This depends on the libabigail utility which is
available from the majority of distribution package managers.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11287
2020-12-06 09:50:47 -08:00
Brian Behlendorf 0484e8722f
ZTS: adjust zpool_import_012_pos timeout
When running in the CI the zpool_import_012_pos test case occasionally
takes longer than the maximum 600 seconds.  When this happens the test
case is considered to have failed but always completes a few minutes
latter.  Since the logs suggest nothing has actually failed this commit
increases timeout and removes the exception.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11286
2020-12-06 09:48:36 -08:00
Brian Behlendorf 81638c999d
ZTS: Update zfs_share_concurrent_shares.ksh
Occasionally an out of memory error is hit by this test case
when mounting the filesystems.  Try and reduce the likelihood
of this occurring by reducing the thread count from 100 to 50.
It also has the advantage of slightly speeding up the test.

    cannot mount 'testpool/testfs3/79': Cannot allocate memory
        filesystem successfully created, but not mounted

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11283
2020-12-06 09:47:33 -08:00
George Amanakis d1d47691c2
Fix raw sends on encrypted datasets when copying back snapshots
When sending raw encrypted datasets the user space accounting is present
when it's not expected to be. This leads to the subsequent mount failure
due a checksum error when verifying the local mac.
Fix this by clearing the OBJSET_FLAG_USERACCOUNTING_COMPLETE and reset
the local mac. This allows the user accounting to be correctly updated
on first mount using the normal upgrade process.

Reviewed-By: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-By: Tom Caputi <caputit1@tcnj.edu>
Signed-off-by: George Amanakis <gamanakis@gmail.com>
Closes #10523 
Closes #11221
2020-12-04 14:34:29 -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
Brian Behlendorf 8f158ae6ad
Add sanity.run file
This run file contains a subset of functional tests which exercise
as much functionality as possible while still executing relatively
quickly.  The included tests should take no more than a few seconds
each to run at most.  This provides a convenient way to sanity test a
change before committing to a full test run which takes several hours.

    $ ./scripts/zfs-tests.sh -r sanity
    ...
    Results Summary
    PASS	 813

    Running Time:	00:14:42
    Percent passed:	100.0%

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11271
2020-12-03 10:49:39 -08:00
melak 766e06695f
Fix trivial typo in zfs-diff.8
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tamas TEVESZ <ice@extreme.hu>
Closes #11268 
Closes #11272
2020-12-03 10:18:26 -08:00
Alexander Motin dcf7044522
Fix for "Reduce latency effects of non-interactive I/O"
It was found that setting min_active tunables for non-interactive I/Os
makes them stuck.  It is caused by zfs_vdev_nia_delay, that can never
be reached if we never issue any I/Os due to min_active set to zero.

Fix this by issuing at least one non-interactive I/O at a time when
there are no interactive I/Os.  When there are interactive I/Os, zero
min_active allows to completely block any non-interactive I/O.  It may
min_active starvation in some scenarios, but who we are to deny foot
shooting?

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #11261
2020-12-03 10:02:39 -08:00
qzdanis 9109b89cd7
Add compatibility for busybox mktemp
Busybox's mktemp requires at least six X's in the template, causing
the current sed --in-place check to fail because the file does not
exist. This change adds additional X's to mktemp templates that do
not already have at least six X's in them.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Quentin Zdanis <zdanisq@gmail.com>
Closes #11269
2020-12-03 10:01:16 -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
Finix1979 ec50cd24ba
Avoid unneccessary zio allocation and wait
In function dmu_buf_hold_array_by_dnode, the usage of zio is only for 
the reading operation. Only create the zio and wait it in the reading 
scenario as a performance optimization.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Finix Yan <yancw@info2soft.com>
Closes #11251 
Closes #11256
2020-12-02 09:28:55 -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
George Melikov aa2778d100
CI: simplify checkstyle runner
Remove excess steps.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #11262
2020-12-01 12:15:55 -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
Brian Behlendorf b2a54a28b5
Verify zfs module loaded before starting services
Extend the change made in ae12b02 to verify the zfs kernel
modules are loaded to the rest of the OpenZFS services.  If
the modules aren't loaded the neither the share, volume, or
and zed services can be started.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11243
2020-11-28 11:11:18 -08:00
Đoàn Trần Công Danh 16692e6ba0
dracut: use /bin/sh instead of bash as the intepreter
Despite that dracut has a hard dependency on bash,
its modules doesn't, dracut only has a hard dependency on bash for
module-setup (on a fully usable machine). Inside initramfs, dracut
allows users choose from a list of handful other shells, e.g. bash,
busybox, dash, mkfsh.

In fact, my local machine's initramfs is being built with dash,
and it's functional for a very long time.

Before 64025fa3a (Silence 'make checkbashisms', 2020-08-20), we also
allows our users to have that right, too.

Let's fix the problem 'make checkbashisms' reported and allows our users
to have that right, again.

For 'plymouth' case, let's simply run the command inside the if instead
of checking for the existence of command before running it, because the
status is also failture if plymouth is unavailable.

While we're at it, let's remove an unnecessary fork for grep in
zfs-generator.sh.in and its following complicated 'if elif fi' with
a simple 'case ... esac'.

To support this change, also exclude 90zfs from "make checkbashisms"
because the current CI infrastructure ships an old version of
"checkbashisms", which complains about "command -v", while the current
latest "checkbashisms" thinks it's fine. In the near future, we can
revert that change to "Makefile.am" when CI infrastructure is updated.

Reviewed-by: Gabriel A. Devenyi <gdevenyi@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Closes #11244
2020-11-28 11:02:08 -08:00
Brian Behlendorf 04a82e043d
Remove incorrect assertion
Commit 85703f6 added a new ASSERT to zfs_write() as part of the
cleanup which isn't correct in the case where multiple processes
are concurrently extending a file.  The `zp->z_size` is updated
atomically while holding a range lock on only a portion of the
file.  Therefore, it's possible for the file size to increase
after a same check is performed earlier in the loop causing this
ASSERT to fail.  The code itself handles this case correctly so
only the invalid ASSERT needs to be removed.

Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11235
2020-11-24 09:28:42 -08:00
Alexander Motin 6f5aac3ca0
Reduce latency effects of non-interactive I/O
Investigating influence of scrub (especially sequential) on random read
latency I've noticed that on some HDDs single 4KB read may take up to 4
seconds!  Deeper investigation shown that many HDDs heavily prioritize
sequential reads even when those are submitted with queue depth of 1.

This patch addresses the latency from two sides:
 - by using _min_active queue depths for non-interactive requests while
   the interactive request(s) are active and few requests after;
 - by throttling it further if no interactive requests has completed
   while configured amount of non-interactive did.

While there, I've also modified vdev_queue_class_to_issue() to give
more chances to schedule at least _min_active requests to the lowest
priorities.  It should reduce starvation if several non-interactive
processes are running same time with some interactive and I think should
make possible setting of zfs_vdev_max_active to as low as 1.

I've benchmarked this change with 4KB random reads from ZVOL with 16KB
block size on newly written non-fragmented pool.  On fragmented pool I
also saw improvements, but not so dramatic.  Below are log2 histograms
of the random read latency in milliseconds for different devices:

4 2x mirror vdevs of SATA HDD WDC WD20EFRX-68EUZN0 before:
0, 0, 2,  1,  12,  21,  19,  18, 10, 15, 17, 21
after:
0, 0, 0, 24, 101, 195, 419, 250, 47,  4,  0,  0
, that means maximum latency reduction from 2s to 500ms.

4 2x mirror vdevs of SATA HDD WDC WD80EFZX-68UW8N0 before:
0, 0,  2,  31,  38,  28,  18,  12, 17, 20, 24, 10, 3
after:
0, 0, 55, 247, 455, 470, 412, 181, 36,  0,  0,  0, 0
, i.e. from 4s to 250ms.

1 SAS HDD SEAGATE ST14000NM0048 before:
0,  0,  29,   70, 107,   45,  27, 1, 0, 0, 1, 4, 19
after:
1, 29, 681, 1261, 676, 1633,  67, 1, 0, 0, 0, 0,  0
, i.e. from 4s to 125ms.

1 SAS SSD SEAGATE XS3840TE70014 before (microseconds):
0, 0, 0, 0, 0, 0, 0, 0,  70, 18343, 82548, 618
after:
0, 0, 0, 0, 0, 0, 0, 0, 283, 92351, 34844,  90

I've also measured scrub time during the test and on idle pools.  On
idle fragmented pool I've measured scrub getting few percent faster
due to use of QD3 instead of QD2 before.  On idle non-fragmented pool
I've measured no difference.  On busy non-fragmented pool I've measured
scrub time increase about 1.5-1.7x, while IOPS increase reached 5-9x.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #11166
2020-11-24 09:26:42 -08:00
Brian Behlendorf f67bebbc34
Obsolete earlier packages due to version bump
In order for package managers such as dnf to upgrade cleanly after
the package SONAME bump the obsolete package names must be known.
Update the new packages to correctly obsolete the old ones.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11230 
Closes #11233
2020-11-24 09:24:24 -08:00
Matthew Macy cd44f5be37
FreeBSD: decouple ZFS_DEBUG from kernel debug settings
Reviewed-by: Martelli Nikola @martellini
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #11213
2020-11-24 09:16:46 -08:00
Brian Behlendorf 0657326f9c
Update dRAID short feature description
The documentation describes dRAID as a distributed spare, not
parity, RAID implementation.  Update the short feature description
to match the rest of the documentation.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11229
2020-11-23 14:49:17 -08:00
Antonio Russo d45267183f
libzfsbootenv: do not depend on libnvpair
We do not build libnvpair.pc.  Moreover, it is automatically pulled in
by libzfs.pc, so no additional specific dependency is required.

Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <aerusso@aerusso.net>
Closes #11227
2020-11-22 15:16:42 -08:00
cragw dc6d39a85e
pam_zfs_key: accommodate different dataset naming scheme
Name of dataset for user home directory may vary from the expected
$homes_prefix/$username, if different naming scheme is being used.

We can use property mountpoint to specify the dataset for $username
as long as its value is identical to passwd's pw_dir.

For example:
    NAME                       PROPERTY     VALUE
    rpool/home/myuser_123456   mountpoint   /home/myuser

Reviewed-by: Felix Dörre <felix@dogcraft.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Crag Wang <crag0715@gmail.com>
Closes #11165
2020-11-22 09:32:34 -08:00
Brian Behlendorf f1ece319fd
Include the ABI with dist tarball
The ABI should be included when generating the `make dist` tarball
since it's required by the `make checkabi` target.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11225
2020-11-21 10:44:52 -08:00
Brian Behlendorf 4d0ba94113
Correct missing zil_claim() DTL updates
Commit a1d477c2 accidentally disabled DTL updates for the zil_claim()
case described at the end of vdev_stat_update() by unconditionally
disabling all DTL updates when loading.  This was done to avoid
a deadlock on the vd_dtl_lock when loading the DTLs from disk.

    vdev_dtl_contains <--- Takes vd->vd_dtl_lock
    vdev_mirror_child_missing
    vdev_mirror_io_start
    zio_vdev_io_start
    __zio_execute
    arc_read
    dbuf_issue_final_prefetch
    dbuf_prefetch_impl
    dbuf_prefetch
    dmu_prefetch
    space_map_iterate
    space_map_load_length
    space_map_load
    vdev_dtl_load <--- Takes vd->vd_dtl_lock
    vdev_load
    spa_ld_load_vdev_metadata
    spa_tryimport

The missing DTL updates can be restored by moving the space_map_load()
call outside the vd_dtl_lock.  A private range tree is populated by
reading the space map and then merged in to the DTL_MISSING tree
under the lock.

Furthermore, the SPA_LOAD_NONE check in vdev_dtl_contains() leads to an
additional problem.  Any resilvering which occurs before SPA_LOAD_NONE
is set will incorrectly determine that there's nothing to repair.  This
can result in full redundancy not being restored for some blocks.

Reviewed-by: Matt Ahrens <matt@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11218
2020-11-20 13:14:45 -08:00
Antonio Russo 8434017a27
Track SONAME version bump in packaging
RPM and DEB packages are named after the SONAME version of the library
they contain.  After bumping this version, the packaging should be
renamed.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <aerusso@aerusso.net>
Closes #11219
2020-11-19 16:25:24 -08:00
наб 567e4d0dfa dracut/mount-zfs.sh: quote expansion on zpool test
Bring over some of the improvements from dracut/zfs-load-key.sh,
shellcheck is slightly quieter as well

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #11198
2020-11-19 16:20:57 -08:00
наб 2d9f82d891 dracut/zfs-load-key.sh: simplify import loop, quote variable assignments
The loop now has a less confusing condition and properly uses
systemctl(1) is-failed's return code instead of that entire mess

The assignments could turn into "var=val program" if encryptionroot
or keylocation had whitespace in them

As a bonus, this (mostly) silences shellcheck

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #11198
2020-11-19 16:20:42 -08:00