Timo wrote:

...

(Lots of this ...) May 26 15:22:50 server dovecot: pop3(user): Warning: Transaction log file /{cachedir}/dovecot.index.log was locked for 43 seconds (rotating while syncing) May 27 16:57:18 server dovecot: imap(user): Warning: Transaction log file /{cachedir}/dovecot.index.log was locked for 105 seconds (Mailbox was synchronized)

Not really an error, just bad performance.

Probably happens when a user is doing I/O on their large INBOX's via NFS, and bogging down. Thanks for explaining this.

Joseph Tam <jtam.home@gmail.com>