Hi Timo, Am I right that if the client fetch body.peek[header], no caching of header fields will be done?
Regards, - joe On Mon, 13 Aug 2007, Timo Sirainen wrote: > On Mon, 2007-08-13 at 23:18 +0800, Joe Wong wrote: > > Hi Timo, > > > > Not necessarily. It goes like this: > > > > 1. mailbox is newly created > > 2. a new mail arrives > > 3. Client does FETCH 1 (BODY.PEEK[HEADER.FIELDS (From)]) > > --> Dovecot caches From header > > 4. Client does FETCH 1 (BODY.PEEK[HEADER.FIELDS (Subject)]) > > --> Dovecot caches Subject header > > 5. a new mail arrives > > 6. Client does FETCH 1 (BODY.PEEK[HEADER.FIELDS (From)]) > > --> Dovecot caches From and Subject headers > > 7. Client does FETCH 1 (BODY.PEEK[HEADER.FIELDS (Subject)]) > > --> Dovecot gets Subject from cache > > 8. a new mail is added with APPEND command or with deliver > > --> Dovecot caches From and Subject header immediately (v1.1 only) > > > > at 3 and 4, does it means that dovecot has to open the message file twice > > to > > get the required header fields from the message? > > Yes. But it's only that one time. > > > What is the relationship > > between dovecot.index, dovecot.index.cache and dovecot.index.log? > > http://wiki.dovecot.org/IndexFiles > > --
