• Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>:

I have a large mail backup folder backup@backup.invalid; I'm cleaning up daily like this:

infimum=date -d "-4 day" +"%Y-%m-%d" doveadm expunge -u backup@backup.invalid mailbox INBOX SAVEDBEFORE $infimum doveadm purge -u backup@backup.invalid

yet I see this:

find attachments/ -type f -ctime +5 | wc -l

7522

find attachments/ -type f | wc -l

127579

find attachments/ -type f -mtime +5 | wc -l

14361

find attachments/ -type f | wc -l

127793

About 5.9% of the files in attachments and below are older than 5 days. Why? Is that normal?

using dovecot 2:2.3.1-1 from the official repos.

I retried this today (2:2.3.4.1-1~bionic):

find attachments/ -type f -ctime +5 | wc -l

193121

find attachments/ -type f | wc -l

301885

193121 of 301885 (64%) are older (ctime) than 5 days, although I just purged everything older than 4 days?

/home/copymail# find attachments/ -type f -mtime +5 | wc -l

201629

/home/copymail# find attachments/ -type f | wc -l

301900

201629 of 301900 (66.7%) files are modified (mtime) more than 5 days ago, although I just purged everything older than 4 days?

-- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt@charite.de | https://www.charite.de