2020-07-12 02:35:58 +03:00
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include $(top_srcdir)/config/Substfiles.am
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2014-01-17 23:21:48 +04:00
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dist_man_MANS = \
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2013-03-17 00:54:32 +04:00
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fsck.zfs.8 \
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mount.zfs.8 \
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vdev_id.8 \
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zdb.8 \
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zfs.8 \
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2019-11-12 22:17:40 +03:00
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zfsconcepts.8 \
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zfsprops.8 \
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zfs-allow.8 \
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zfs-bookmark.8 \
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zfs-change-key.8 \
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zfs-clone.8 \
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zfs-create.8 \
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zfs-destroy.8 \
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zfs-diff.8 \
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zfs-get.8 \
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zfs-groupspace.8 \
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zfs-hold.8 \
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zfs-inherit.8 \
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2019-12-11 22:58:37 +03:00
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zfs-jail.8 \
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2019-11-12 22:17:40 +03:00
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zfs-list.8 \
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zfs-load-key.8 \
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zfs-mount.8 \
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2018-02-08 19:16:23 +03:00
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zfs-program.8 \
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2019-11-12 22:17:40 +03:00
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zfs-project.8 \
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zfs-projectspace.8 \
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zfs-promote.8 \
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zfs-receive.8 \
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zfs-recv.8 \
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zfs-redact.8 \
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zfs-release.8 \
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zfs-rename.8 \
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zfs-rollback.8 \
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zfs-send.8 \
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zfs-set.8 \
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zfs-share.8 \
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zfs-snapshot.8 \
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zfs-unallow.8 \
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2019-12-11 22:58:37 +03:00
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zfs-unjail.8 \
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2019-11-12 22:17:40 +03:00
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zfs-unload-key.8 \
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zfs-unmount.8 \
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zfs-upgrade.8 \
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zfs-userspace.8 \
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2020-04-01 20:02:06 +03:00
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zfs-wait.8 \
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2020-05-20 20:05:33 +03:00
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zfs_ids_to_path.8 \
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2017-07-28 05:06:34 +03:00
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zgenhostid.8 \
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2013-03-17 00:54:32 +04:00
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zinject.8 \
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zpool.8 \
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2019-11-13 20:21:07 +03:00
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zpoolconcepts.8 \
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zpoolprops.8 \
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zpool-add.8 \
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zpool-attach.8 \
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zpool-checkpoint.8 \
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zpool-clear.8 \
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zpool-create.8 \
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zpool-destroy.8 \
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zpool-detach.8 \
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zpool-events.8 \
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zpool-export.8 \
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zpool-get.8 \
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zpool-history.8 \
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zpool-import.8 \
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zpool-initialize.8 \
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zpool-iostat.8 \
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zpool-labelclear.8 \
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zpool-list.8 \
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zpool-offline.8 \
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zpool-online.8 \
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zpool-reguid.8 \
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zpool-remove.8 \
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zpool-reopen.8 \
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zpool-replace.8 \
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zpool-resilver.8 \
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zpool-scrub.8 \
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zpool-set.8 \
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zpool-split.8 \
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zpool-status.8 \
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zpool-sync.8 \
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zpool-trim.8 \
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zpool-upgrade.8 \
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zpool-wait.8 \
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Add `zstream redup` command to convert deduplicated send streams
Deduplicated send and receive is deprecated. To ease migration to the
new dedup-send-less world, the commit adds a `zstream redup` utility to
convert deduplicated send streams to normal streams, so that they can
continue to be received indefinitely.
The new `zstream` command also replaces the functionality of
`zstreamdump`, by way of the `zstream dump` subcommand. The
`zstreamdump` command is replaced by a shell script which invokes
`zstream dump`.
The way that `zstream redup` works under the hood is that as we read the
send stream, we build up a hash table which maps from `<GUID, object,
offset> -> <file_offset>`.
Whenever we see a WRITE record, we add a new entry to the hash table,
which indicates where in the stream file to find the WRITE record for
this block. (The key is `drr_toguid, drr_object, drr_offset`.)
For entries other than WRITE_BYREF, we pass them through unchanged
(except for the running checksum, which is recalculated).
For WRITE_BYREF records, we change them to WRITE records. We find the
referenced WRITE record by looking in the hash table (for the record
with key `drr_refguid, drr_refobject, drr_refoffset`), and then reading
the record header and payload from the specified offset in the stream
file. This is why the stream can not be a pipe. The found WRITE record
replaces the WRITE_BYREF record, with its `drr_toguid`, `drr_object`,
and `drr_offset` fields changed to be the same as the WRITE_BYREF's
(i.e. we are writing the same logical block, but with the data supplied
by the previous WRITE record).
This algorithm requires memory proportional to the number of WRITE
records (same as `zfs send -D`), but the size per WRITE record is
relatively low (40 bytes, vs. 72 for `zfs send -D`). A 1TB send stream
with 8KB blocks (`recordsize=8k`) would use around 5GB of RAM to
"redup".
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #10124
Closes #10156
2020-04-10 20:39:55 +03:00
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zstream.8 \
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2013-03-17 00:54:32 +04:00
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zstreamdump.8
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2014-01-22 01:30:03 +04:00
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nodist_man_MANS = \
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2018-05-11 22:44:14 +03:00
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zed.8 \
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zfs-mount-generator.8
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2014-01-22 01:30:03 +04:00
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2020-07-12 02:35:58 +03:00
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SUBSTFILES += $(nodist_man_MANS)
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2020-08-21 21:55:47 +03:00
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if BUILD_LINUX
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# The man pager in most Linux distros defaults to BSD instead of Linux
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# when .Os is blank, but leaving it blank makes things a lot easier on
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# FreeBSD when OpenZFS is vendored in the base system.
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install-data-hook:
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cd $(DESTDIR)$(mandir)/man8; \
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$(SED) ${ac_inplace} -e 's/^\.Os$$/.Os Linux/' \
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$(dist_man_MANS) $(nodist_man_MANS)
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endif
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