Xapian discuss - Jan 2021 - xapian-check - bad table code error

Hi,

We've recently created a completely new Xapian index using the glass format
to replace an older chert database that was inconsistent.

When we run a xapian-check on the new database, it completes successfully.
If we then set XAPIAN_MAX_CHANGESETS and index new data, this completes and
some changeset files are created as expected.

However, running xapian-check against the whole database at this point
immediately stops with "xapian-check: DatabaseError: Changes file - bad
table code". Remove the changeset files and xapian-check completes without
errors.

So it seems that the index is OK, but something is amiss with the changeset
files; I'd really appreciate any help on why this might be, or where to
look to troubleshoot further.

Regards,
Sam


-- 
Sam Pearson
Site Reliability Engineer, mySociety
www.mysociety.org

On Mon, Jan 25, 2021 at 04:01:19PM +0000, Sam Pearson
wrote:
> So it seems that the index is OK, but something is amiss with the changeset
> files; I'd really appreciate any help on why this might be, or where to
> look to troubleshoot further.
Are you running a version < 1.4.15?

There was a bug in the code to check replication changesets which was
fixed in 1.4.15:

| * Database::check(): Fix checking of replication changesets.  This
|   reverts a change incorrectly made in 1.3.7.

If this is the cause then it's a false report and your changeset files
are very likely totally fine.

Cheers,
    Olly