Paul Tomblin writes:
 > On Sun, Mar 1, 2026, at 5:43 AM, Stephen J. Turnbull wrote:
 > > Paul Tomblin via Mailman-users writes:
 > 
 > > Full-text indexing is a pretty slow operation, and it's I/O bound.  If
 > > you've migrated a substantial archive, that will be a full-archive
 > 
 > Is 431,000+ messages a substantial archive?

I would think that would be measured in terms of hours, not days,
unless there are a substantial proportion of messages that are like
all of Congress's annual appropriations bill.

Of course in terms of how long it would be pinning I/O the important
unit is "terabytes", not "messages".

 > > after the current message gets indexed).  But if you didn't manually
 > > trigger a full archive index at the initial migration, the first
 > 
 > I did a "update_index_one_list" on each archive after I brought it
 > into hyperkitty. I was impressed with the full text search.

Yes, Xapian is quite good for my purposes.  Especially compared to
"Whoosh" for performance.  I can't say about the other backends
supported by Django Haystack, I'd like to try them as well.

-- 
GNU Mailman consultant (installation, migration, customization)
Sirius Open Source    https://www.siriusopensource.com/
Software systems consulting in Europe, North America, and Japan
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