File: CHANGELIST

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sanoid 2.0.3-4
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2.0.3  [sanoid]    reverted DST handling and improved it as quickfix (@phreaker0)

2.0.2  [overall]   documentation updates, new dependencies, small fixes, more warnings (@benyanke, @matveevandrey, @RulerOf, @klemens-u, @johnramsden, @danielewood, @g-a-c, @hartzell, @fryfrog, @phreaker0)
       [sanoid]    changed and simplified DST handling (@shodanshok)
       [syncoid]   reset partially resume state automatically (@phreaker0)
       [syncoid]   handle some zfs erros automatically by parsing the stderr outputs (@phreaker0)
       [syncoid]   fixed ordering of snapshots with the same creation timestamp (@phreaker0)
       [syncoid]   don't use hardcoded paths (@phreaker0)
       [syncoid]   fix for special setup with listsnapshots=on (@phreaker0)
       [syncoid]   check ssh connection on startup (@phreaker0)
       [syncoid]   fix edge case with initial send and no-stream option (@phreaker0)
       [syncoid]   fallback to normal replication if clone recreation fails (@phreaker0)
       [packaging] ebuild for gentoo (@thehaven)
       [syncoid]   support for zfs bookmark creation (@phreaker0)
       [syncoid]   fixed bookmark edge cases (@phreaker0)
       [syncoid]   handle invalid dataset paths nicely (@phreaker0)
       [syncoid]   fixed resume support check to be zpool based (@phreaker0)
       [sanoid]    added hotspare template  (@jimsalterjrs)
       [syncoid]   support for advanced zfs send/recv options (@clinta, @phreaker0)
       [syncoid]   option to change mbuffer size (@TerraTech)
       [tests]     fixes for FreeBSD (@phreaker0)
       [sanoid]    support for zfs recursion (@jMichaelA, @phreaker0)
       [syncoid]   fixed bookmark handling for volumens (@ppcontrib)
       [sanoid]    allow time units for monitoring warn/crit values (@phreaker0)

2.0.1  [sanoid]    fixed broken monthly warn/critical monitoring values in default template (@jimsalterjrs)
       [sanoid]    flag to force pruning while filesystem is in an active zfs send/recv (@shodanshok)
       [syncoid]   flags to disable rollbacks (@shodanshok)

2.0.0  [overall]   documentation updates, small fixes, more warnings (@sparky3387, @ljwobker, @phreaker0)
       [syncoid]   added force delete flag (@phreaker0)
       [sanoid]    removed sleeping between snapshot taking (@phreaker0)
       [syncoid]   added '--no-privilege-elevation' option to bypass root check (@lopsided98)
       [sanoid]    implemented weekly period (@phreaker0)
       [syncoid]   implemented support for zfs bookmarks as fallback (@phreaker0)
       [sanoid]    support for pre, post and prune snapshot scripts (@jouir, @darkbasic, @phreaker0)
       [sanoid]    ignore snapshots types that are set to 0 (@muff1nman)
       [packaging] split snapshot taking/pruning into separate systemd units for debian package (@phreaker0)
       [syncoid]   replicate clones (@phreaker0)
       [syncoid]   added compression algorithms: lz4, xz (@spheenik, @phreaker0)
       [sanoid]    added option to defer pruning based on the available pool capacity (@phreaker0)
       [sanoid]    implemented frequent snapshots with configurable period (@phreaker0)
       [syncoid]   prevent a perl warning on systems which doesn't output estimated send size information (@phreaker0)
       [packaging] dependency fixes (@rodgerd, mabushey)
       [syncoid]   implemented support for excluding children of a specific dataset (@phreaker0)
       [sanoid]    monitor-health command additionally checks vdev members for io and checksum errors (@phreaker0)
       [syncoid]   added ability to skip datasets by a custom dataset property 'syncoid:no-sync' (@attie)
       [syncoid]   don't die on some critical replication errors, but continue with the remaining datasets (@phreaker0)
       [syncoid]   return a non zero exit code if there was a problem replicating datasets (@phreaker0)
       [syncoid]   make local source bwlimit work (@phreaker0)
       [syncoid]   fix 'resume support' detection on FreeBSD (@pit3k)
       [sanoid]    updated INSTALL with missing dependency
       [sanoid]    fixed monitor-health command for pools containing cache and log devices (@phreaker0)
       [sanoid]    quiet flag suppresses all info output (@martinvw)
       [sanoid]    check for empty lockfile which lead to sanoid failing on start (@jasonblewis)
       [sanoid]    added dst handling to prevent multiple invalid snapshots on time shift (@phreaker0)
       [sanoid]    cache improvements, makes sanoid much faster with a huge amount of datasets/snapshots (@phreaker0)
       [sanoid]    implemented monitor-capacity flag for checking zpool capacity limits (@phreaker0)
       [syncoid]   Added support for ZStandard compression.(@danielewood)
       [syncoid]   implemented support for excluding datasets from replication with regular expressions (@phreaker0)
       [syncoid]   correctly parse zfs column output, fixes resumeable send with datasets containing spaces (@phreaker0)
       [syncoid]   added option for using extra identification in the snapshot name for replication to multiple targets (@phreaker0)
       [syncoid]   added option for skipping the parent dataset in recursive replication (@phreaker0)
       [syncoid]   typos (@UnlawfulMonad, @jsavikko, @phreaker0)
       [sanoid]    use UTC by default in unit template and documentation (@phreaker0)
       [syncoid]   don't prune snapshots if instructed to not create them either (@phreaker0)
       [syncoid]   documented compatibility issues with (t)csh shells (@ecoutu)

1.4.18 implemented special character handling and support of ZFS resume/receive tokens by default in syncoid,
       thank you @phreaker0!

1.4.17 changed die to warn when unexpectedly unable to remove a snapshot - this
       allows sanoid to continue taking/removing other snapshots not affected by
       whatever lock prevented the first from being taken or removed

1.4.16 merged @hrast01's extended fix to support -o option1=val,option2=val passthrough to SSH. merged @JakobR's
       off-by-one fix to stop unnecessary extra snapshots being taken under certain conditions. merged @stardude900's
       update to INSTALL for FreeBSD users re:symlinks. Implemented @LordAro's update to change DIE to WARN when
       encountering a dataset with no snapshots and --no-sync-snap set during recursive replication. Implemented
       @LordAro's update to sanoid.conf to add an ignore template which does not snap, prune, or monitor.

1.4.15 merged @hrast01's -o option to pass ssh CLI options through. Currently only supports a single -o=option argument -
       in the near future, need to add some simple parsing to expand -o=option1,option2 on the CLI to
       -o option1 -o option2 as passed to SSH.

1.4.14 fixed significant regression in syncoid - now pulls creation AND guid on each snap; sorts by
       creation and matches by guid. regression reported in #112 by @da-me, thank you!

1.4.13 Syncoid will now continue trying to replicate other child datasets after one dataset fails replication
       when called recursively. Eg syncoid -r source/parent target/parent when source/parent/child1 has been
       deleted and replaced with an imposter will no longer prevent source/parent/child2 from successfully
       replicating to target/parent/child2.  This could still use some cleanup TBH; syncoid SHOULD exit 3
       if any of these errors happen (to assist detection of errors in scripting) but now would exit 0.

1.4.12 Sanoid now strips trailing whitespace in template definitions in sanoid.conf, per Github #61

1.4.11 enhanced Syncoid to use zfs `guid` property rather than `creation` property to ensure snapshots on source
       and target actually match. This immediately prevents conflicts due to timezone differences on source and target,
       and also paves the way in the future for Syncoid to find matching snapshots even after `zfs rename` on source
       or target. Thank you Github user @mailinglists35 for the idea!

1.4.10 added --compress=pigz-fast and --compress=pigz-slow. On a Xeon E3-1231v3, pigz-fast is equivalent compression
       to --compress=gzip but with compressed throughput of 75.2 MiB/s instead of 18.1 MiB/s. pigz-slow is around 5%
       better compression than compress=gzip with roughly equivalent compressed throughput. Note that pigz-fast produces
       a whopping 20+% better compression on the test data (a linux boot drive) than lzop does, while still being fast
       enough to saturate or nearly saturate a real-world gigabit LAN link.  The down side: pigz chews through 100% util
       of all available system threads, if not bottlenecked by the network link speed.

      Default compression remains lzop for SSH transport, with compression automatically set to none if there's no transport
      (ie syncoid replication from dataset to dataset on the local machine only).

1.4.9 added -c option to manually specify the SSH cipher used.  Must use a cipher supported by both source and target! Thanks
      Tamas Papp.

1.4.8 added --no-stream argument to syncoid: allows use of -i incrementals (do not replicate a full snapshot stream, only a
      direct incremental update from oldest to most recent snapshot) instead of the normal -I incrementals which include
      all intermediate snapshots.

      added --no-sync-snap, which has syncoid replicate using only the newest PRE-EXISTING snapshot on source,
      instead of default behavior in which syncoid creates a new, ephemeral syncoid snapshot.

1.4.7a (syncoid only) added standard invocation output when called without source or target
       as per @rriley and @fajarnugraha suggestions

1.4.7 reverted Perl shebangs to #!/usr/bin/perl - sorry FreeBSD folks, shebanged to /usr/bin/env perl bare calls to syncoid
      or sanoid (without explicit calls to Perl) don't work on EITHER of our systems.  I'm not OK with that, this is going to be
      an OS localization issue that can either be addressed with BSD-specific packaging, or you can individually address it
      by editing the shebangs on your own systems OR by doing a one-time ln -s /usr/local/bin/perl to /usr/bin/perl, which will
      fix the issue for this particular script AND all other Perl scripts developed on non-BSD systems.

      also temporarily dyked out the set readonly functionality in syncoid - it was causing more problems than it prevented, and
      using the -F argument with receive prevents incautious writes (including just cd'ing into mounted datasets, if atimes are on)
      from interrupting syncoid runs anyway.

1.4.6c merged @gusson's pull request to add -sshport argument

1.4.6b updated default cipherlist for syncoid to
       chacha20-poly1305@openssh.com,arcfour - arcfour isn't supported on
       newer SSH (in Ubuntu Xenial and FreeBSD), chacha20 isn't supported on
       some older SSH versions (Ubuntu Precise< I think?)

1.4.6a due to bug in ZFS on Linux which frequently causes errors to return from `zfs set readonly`,
       changed ==0 or die in setzfsvalue() to ==0 or [complain] - it's not worth causing replication
       to fail while this ZFS on Linux bug exists.

1.4.6 added a mollyguard to syncoid to help newbies who try to zfs create a new target dataset
      before doing an initial replication, instead of letting the replication itself create
      the target.

      added "==0 or die" to all system() calls in sanoid and syncoid that didn't already have them.

1.4.5 altered shebang to '#!/usr/bin/env perl' for enhanced FreeBSD compatibility

1.4.4 merged pull requests from jjlawren for OmniOS compatibility, added --configdir=/path/to/configs CLI option to sanoid at jjlawrens' request presumably for same

1.4.3 added SSH persistence to syncoid - using socket speeds up SSH overhead 300%! =)
      one extra commit to get rid of the "Exit request sent." SSH noise at the end.

1.4.2 removed -r flag for zfs destroy of pruned snapshots in sanoid, which unintentionally caused same-name
      child snapshots to be deleted - thank you Lenz Weber!

1.4.1 updated check_zpool() in sanoid to parse zpool list properly both pre- and post- ZoL v0.6.4

1.4.0 added findoid tool - find and list all versions of a given file in all available ZFS snapshots.
      use: findoid /path/to/file

1.3.1 whoops - prevent process_children_only from getting set from blank value in defaults

1.3.0 changed monitor_children_only to process_children_only. which keeps sanoid from messing around with
      empty parent datasets at all. also more thoroughly documented features in default config files.

1.2.0 added monitor_children_only parameter to sanoid.conf for use with recursive definitions - in cases where container dataset is kept empty

1.1.0 woooo - working recursive definitions in Sanoid!  Also intelligent config errors in Sanoid; will die with errors if unknown config value is set.

1.0.20 greatly cleaned up config parsing in sanoid, got rid of 'hardcoded defaults' in favor of /etc/sanoid/sanoid.defaults.conf

1.0.19 working recursive sync (sync specified dataset and all child datasets, ie pool/ds, pool/ds/1, pool, ds/1/a, pool/ds/2 ...) with --recursive or -r in syncoid!

1.0.18 updated syncoid to break sync out of main routine and into syncdataset(). this will allow doing recursive sync, in next update :)

1.0.17 updated syncoid to use sudo when necessary if it isn't already root - working user needs NOPASSWD for /sbin/zfs in /etc/sudoers
       updated syncoid to throw errors on unknown arguments

1.0.16 updated sanoid to use VASTLY improved CLI argument parsing, throw errors on unknown arguments, etc

1.0.15 updated syncoid to accept compression engine flags - --compress=lzo|gzip|none

1.0.14 updated syncoid to reduce output when fetching snapshot list - thank you github user @0xFate.

1.0.13 removed monitor_version again - sorry for the feature instability, forgot I removed it in the first place because I didn't like pulling
       in so many dependencies for such a trivial feature

1.0.12 patched default sanoid.conf provided to set yearly_mon and yearly_mday correctly

1.0.11 patched bug in yearly snapshots - thank you @stevenolen for the bug report!

1.0.10 added --monitor-version to check installed version against current version in trunk on GitHub

1.0.9 added CR/LF after --monitor-health message output to make CLI usage cleaner looking

1.0.8 added --version checking in sanoid and syncoid

1.0.7 got rid of unnecessary sudo commands in sanoid's --monitor-health

1.0.6 added 'or die' to make sure /var/cache/sanoidsnapshots.txt is writeable

1.0.5 fixed another ps BSD-ism bug in sanoid

1.0.4 updated ps usage in sanoid to comply with BSDisms

1.0.3 nerfed references to $debug (not implemented yet) in sanoid

1.0.2 implemented iszfsbusy check to the thinning routine in sanoid

1.0.1 ported slightly modified iszfsbusy sub from syncoid to sanoid (to keep from thinning snapshots during replications)

1.0.0 initial commit to Github