Xapian discuss - Jun 2021 - How to recover from this permanent fatal error?

Felipe Contreras <felipe.contreras at gmail.com> writes:
> Hello,
>
> I can't use notmuch anymore, I get this error:
>
> A Xapian exception occurred opening database: The revision being read
> has been discarded - you should call Xapian::Database::reopen() and
> retry the operation
>
> Context. In order to investigate a bug about mbsync I moved away the
> folder ~/mail/.notmuch. I have a timer that calls notmuch new after
> mbsync, so I paused that timer.
>
> Initially I used notmuch, only to see everything empty. Then I
> recalled what I did, removed all the files, and moved back the .nomuch
> directory.
>
> IIRC I was able to use notmuch without problems once, and then I got the
issue.
Maybe the Xapian folk will have a more concrete suggestion, but I would
start by running xapian-check on the database. In your case I guess that
should be "xapian-check ~/mail/.notmuch".

You might have to install an extra package to get xapian-check. On
Debian it's part of xapian-tools.

d

On Fri, Jun 4, 2021 at 8:37 PM David Bremner <david at tethera.net>
wrote:
> Felipe Contreras <felipe.contreras at gmail.com> writes:
> > I can't use notmuch anymore, I get this error:
> >
> > A Xapian exception occurred opening database: The revision being read
> > has been discarded - you should call Xapian::Database::reopen() and
> > retry the operation
> >
> > Context. In order to investigate a bug about mbsync I moved away the
> > folder ~/mail/.notmuch. I have a timer that calls notmuch new after
> > mbsync, so I paused that timer.
> >
> > Initially I used notmuch, only to see everything empty. Then I
> > recalled what I did, removed all the files, and moved back the .nomuch
> > directory.
> >
> > IIRC I was able to use notmuch without problems once, and then I got
the issue.
>
> Maybe the Xapian folk will have a more concrete suggestion, but I would
> start by running xapian-check on the database. In your case I guess that
> should be "xapian-check ~/mail/.notmuch".
Actually `xapian-check ~/mai/.notmuch/xapian`, but I already did that:

Database couldn't be opened for reading: DatabaseModifiedError: The
revision being read has been discarded - you should call
Xapian::Database::reopen() and retry the operation
Continuing check anyway
docdata:
xapian-check: DatabaseCorruptError: Db block overwritten - are there
multiple writers?

`xapian-check ~/mail/.notmuch/xapian F` doesn't seem to change anything.

Thanks for the prompt response though.

Cheers.

-- 
Felipe Contreras