Re: [PATCH] lib/notmuch_database_reopen: reload some database metada

Subject: Re: [PATCH] lib/notmuch_database_reopen: reload some database metada

Date: Wed, 12 May 2021 15:30:26 +0200

To: David Bremner,


From: Michael J Gruber

David Bremner venit, vidit, dixit 2021-05-12 14:07:33:
> David Bremner <> writes:
> > David Bremner <> writes:
> >
> >> In some uses of reopen, new documents and threads maybe have been
> >> added, and e.g. compaction may have changed the uuid.
> >
> > It's quite possible there is more cached data that should be discarded,
> > but I'll have to think about that a bit more.
> >
> The following are at least potential problems, although I think none of
> them are as urgent as the doc_id / thread_id issue.
> exception_reported    should probably be reset to false
> atomic_nesting, atomic_dirty.   Re-opening while in an open atomic
>                                 section is currently undefined
>                                 behaviour, should be checked.
> features  Theoretically if the user runs notmuch-new in a pre-new hook,
>           the database could be upgraded. For now, I suggest not doing
>           that. This should be fixabable, but I prefer to take more time.

Out of curiosity:

What does reopening gain compared to a full close/open cycle?

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