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docs/MANUAL: How to upgrade to sqlite storage

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Add section to the manual describing how to upgrade to the new cache
backend.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
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Sebastian Spaeth 2012-01-06 19:35:56 +01:00
parent 78a37f27ef
commit 00c67881a0
1 changed files with 19 additions and 0 deletions
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docs/MANUAL.rst
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@ -305,6 +305,25 @@ achieve this.
to hit the disk before continueing, you can set this to True. If you to hit the disk before continueing, you can set this to True. If you
set it to False, you lose some of that safety, trading it for speed. set it to False, you lose some of that safety, trading it for speed.
Upgrading from plain text cache to SQLITE based cache
=====================================================
OfflineImap uses a cache to store the last know status of mails (flags etc). Historically that has meant plain text files, but recently we introduced sqlite-based cache, which helps with performance and CPU usage on large folders. Here is how to upgrade existing plain text cache installations to sqlite based one:
1) Sync to make sure things are reasonably similar
3) Change the account section to status_backend = sqlite
4) A new sync will convert your plain text cache to an sqlite cache (but
leave the old plain text cache around for easy reverting)
This should be quick and not involve any mail up/downloading.
5) See if it works :-)
6a) If it does not work, go back to the old version or set
status_backend=plain
6b) Or once you are sure it works, you can delete the
.offlineimap/Account-foo/LocalStatus folder (the new cache will be in
the LocalStatus-sqlite folder)
Security and SSL Security and SSL
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