[Xapian-discuss] postlist: Tag containing meta information is corrupt.

[Henry]

Some more information:

xapian-compact = xapian-compact-1.1
xapian-check   = xapian-check-1.1
"batch" means a batch of previously indexed websites (performed across a
cluster).

Merging a batch into DB.a completes OK (sometimes with "Tag containing
meta information is corrupt." reported by xapian-check).  This index can
be searched on and results are returned as normal.

Merging DB.a (and possibly DB.n) into empty foldertest/ completes OK, but
xapian-check on foldertest/ goes ape with:

postlist:
baseB blocksize=8K items=18252 lastblock=133 revision=1 levels=1 root=2
B-tree checked okay
Tag containing meta information is corrupt.
termfreq 2 != # of entries 1
collfreq 4 != sum wdf 3
termfreq 0 != # of entries 1
collfreq 0 != sum wdf 1
termfreq 5 != # of entries 4
collfreq 169 != sum wdf 163
...
First posting list chunk for term `00' follows previous chunk for the same
term
termfreq 0 != # of entries 32
collfreq 0 != sum wdf 1682
First chunk for term `' is a continuation chunk
...

This index cannot be searched on; it errors with: "RangeError: Value in
posting list too large."

I have no idea what's going on here :|