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Better description of how cache and rebuilds of it work

and how the workaround applies to that
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viq 2020-08-02 21:05:47 +02:00 committed by viq
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@ -734,6 +734,17 @@ connections and release the lock).
The borg cache eats way too much disk space, what can I do?
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This may especially happen if borg needs to rebuild the local "chunks" index -
either because it was removed, or because it was not coherent with the
repository state any more (e.g. because another borg instance changed the
repository).
To optimize this rebuild process, borg caches per-archive information in the
``chunks.archive.d/`` directory. It won't help the first time it happens, but it
will make the subsequent rebuilds faster (because it needs to transfer less data
from the repository). While being faster, the cache needs quite some disk space,
which might be unwanted.
There is a temporary (but maybe long lived) hack to avoid using lots of disk
space for chunks.archive.d (see :issue:`235` for details):