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Paul Dagnelie 9f4ede63d2
Add ability to recompress send streams with new compression algorithm 
As new compression algorithms are added to ZFS, it could be useful for 
people to recompress data with new algorithms. There is currently no 
mechanism to do this aside from copying the data manually into a new 
filesystem with the new algorithm enabled. This tool allows the 
transformation to happen through zfs send, allowing it to be done 
efficiently to remote systems and in an incremental fashion.

A new zstream command is added that decompresses WRITE records and 
then recompresses them with a provided algorithm, and then re-emits 
the modified send stream. It may also be possible to re-compress 
embedded block pointers, but that was not attempted for the initial 
version.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #14106
 		2022-11-10 15:23:46 -08:00
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.gitignore Ignore *.o.ur-safe build artifacts 2018-05-13 18:59:02 -07:00
fsck.zfs.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
mount.zfs.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_id.8 vdev_id.8: modernise, note scsi topology 2021-05-29 20:22:01 -07:00
zdb.8 man: Examples: use subsections instead of lists 2022-03-28 10:13:13 -07:00
zed.8.in Prevent zevent list from consuming all of kernel memory 2022-08-22 12:36:22 -07:00
zfs-allow.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-bookmark.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-change-key.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-clone.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-create.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-destroy.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-diff.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-get.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-groupspace.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-hold.8 Adds the `-p` option to `zfs holds` 2022-11-08 10:08:21 -08:00
zfs-inherit.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-jail.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-list.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-load-key.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-mount-generator.8.in etc/systemd/zfs-mount-generator: serialise, handle keylocation=http[s]:// 2021-11-30 09:29:50 -07:00
zfs-mount.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-program.8 Add zfs.sync.snapshot_rename 2022-09-02 13:31:19 -07:00
zfs-project.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-projectspace.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-promote.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-receive.8 Implement a new type of zfs receive: corrective receive (-c) 2022-07-28 15:52:46 -07:00
zfs-recv.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-redact.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-release.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-rename.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-rollback.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-send.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-set.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-share.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-snapshot.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-unallow.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-unjail.8 Add FreeBSD jail support hooks 2019-12-11 11:58:37 -08:00
zfs-unload-key.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-unmount.8 Reorganize zfs(8) man page into sections 2019-11-12 11:17:40 -08:00
zfs-unzone.8 Add Linux namespace delegation support 2022-06-10 09:51:46 -07:00
zfs-upgrade.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-userspace.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-wait.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs-zone.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_ids_to_path.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zgenhostid.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zinject.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-add.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-attach.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-checkpoint.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-clear.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-create.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-destroy.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-detach.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-events.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-export.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-get.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-history.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-import.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-initialize.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-iostat.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-labelclear.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-list.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-offline.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-online.8 Reorganize zpool(8) man page into sections 2019-11-13 09:21:07 -08:00
zpool-reguid.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-remove.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-reopen.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-replace.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-resilver.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-scrub.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-set.8 Reorganize zpool(8) man page into sections 2019-11-13 09:21:07 -08:00
zpool-split.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-status.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-sync.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-trim.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-upgrade.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool-wait.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool.8 Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool_influxdb.8 Consistentify miscellaneous style on remaining manpages 2021-06-09 14:35:53 -07:00
zstream.8 Add ability to recompress send streams with new compression algorithm 2022-11-10 15:23:46 -08:00
zstreamdump.8 zstreamdump: replace with link to zstream 2021-05-21 10:16:14 -07:00