[Dovecot] mdbox: Is there any more info on the "cleanup" step? (Dovecot 2.0beta5)
The wiki page which mentions mdbox talks about a "cleanup" step for mdbox:
: The space is later freed in "cleanup" step. This may be done : automatically within the session or later in a nightly cronjob when : there's less disk I/O. The cleanup first finds all files that have : refcount=0 mails. Then it goes through each file and copies the : refcount>0 mails to other dbox files (to the same files as where newly : saved messages would also go), updates the map index and finally : deletes the original file. So there is never any overwriting or file : truncation.
I was wondering if there was any code to actually do this, or any command-line tools (and if either of those where they might be), or whether it was just design musings at the minute.
Regards,
Bill
On Thu, 2010-05-13 at 10:33 +0100, William Blunn wrote:
The wiki page which mentions mdbox talks about a "cleanup" step for mdbox:
: The space is later freed in "cleanup" step. This may be done : automatically within the session or later in a nightly cronjob when : there's less disk I/O. The cleanup first finds all files that have : refcount=0 mails. Then it goes through each file and copies the : refcount>0 mails to other dbox files (to the same files as where newly : saved messages would also go), updates the map index and finally : deletes the original file. So there is never any overwriting or file : truncation.
I was wondering if there was any code to actually do this, or any command-line tools (and if either of those where they might be), or whether it was just design musings at the minute.
doveadm purge does this step. There were also some plans to do it automatically sometimes, but this doesn't happen currently.
participants (2)
-
Timo Sirainen
-
William Blunn