Xapian searches of the body of an email
egoitz at sarenet.es
Mon Jan 7 11:54:36 EST 2019
Thank you so much for helping us (mainly which is the one boring the
list with questions :) although I promise I've checked the doc before
asking :) :) ).
When you have a master/slave config... in the slave one, when running
Squatter in rolling mode... does it update the conversations db too?. By
the way, Squatter in rolling mode only makes sense in slave machines
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egoitz at sarenet.es
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El 07-01-2019 16:42, Robert Stepanek escribió:
> Sebastian is right:
> On Mon, Jan 7, 2019, at 3:57 PM, Sebastian Hagedorn wrote:
>> squatter is nowadays a bit of a misnomer, because it uses whatever index
>> you have configured. In cyrus 2.4, squatter would always create a SQUAT
>> index. When you run squatter with Xapian, it will build the index, but for
>> the index to actually work, you also need the conversationsdb.
> conversations.db is indeed a misnomer now. The database was only used to keep track of mail threads (hence the name), but its role expanded. One of the indexes it stores is the SHA1 hashes of every message, and separate hashes for each of that message MIME parts. Such a hash is named the GUID, and for each GUID we store a list of all mailbox:UID[bodypart] pairs where this content occurs in.
> For search, we keep track of the indexed messages by GUID, so we can avoid reindexing duplicate mails. To return a search result, we can now map that GUID back to its mailbox:message pairs. That's why we need conversations.db for search.
> I can't help with upgrading from 2.4, unfortunately, but if you re-index your mailboxes once in conversations.db, you should be all set.
> Cyrus Home Page: http://www.cyrusimap.org/
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