Merge pull request #1915 from mlissner/patch-2

Adds warning re performance of prune
This commit is contained in:
Alexander Neumann 2018-07-31 22:42:20 +02:00
commit 01aacf41b5
1 changed files with 7 additions and 0 deletions

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@ -23,6 +23,13 @@ data that was referenced by the snapshot from the repository. This can
be automated with the ``--prune`` option of the ``forget`` command, be automated with the ``--prune`` option of the ``forget`` command,
which runs ``prune`` automatically if snapshots have been removed. which runs ``prune`` automatically if snapshots have been removed.
.. Warning::
Pruning snapshots can be a very time-consuming process, taking nearly
as long as backups themselves. During a prune operation, the index is
locked and backups cannot be completed. Performance improvements are
planned for this feature.
It is advisable to run ``restic check`` after pruning, to make sure It is advisable to run ``restic check`` after pruning, to make sure
you are alerted, should the internal data structures of the repository you are alerted, should the internal data structures of the repository
be damaged. be damaged.