grephistory confusion

Russ Allbery rra at
Tue Nov 5 02:51:47 UTC 2002

Jeffrey M Vinocur <jeff at> writes:

> I just rebuild history (but not overview) from the spool.  I picked an
> article at random and saved its Message-ID and storage token from before
> the rebuild.  Now using grephistory on that Message-ID claims that it's
> not in history, but if I grep for the token it definitely does exist
> (and I can retrieve the article correctly using sm on the token).

> I can't even imagine anything that would cause this.  Any ideas?

Sounds like the history indexes (generated with makedbz) are corrupted to
me.  Either that, or the message ID hash wasn't done right.  A grephistory
option to just print out the hash of the message ID would be useful here,
so that you could grep the history file for that hash and make sure that
part is working properly.

What could cause that, I have no clue.

Russ Allbery (rra at             <>

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