[Dovecot] dovecot index errors since 2.1.12

[Timo Sirainen]

On 14.1.2013, at 17.16, Daniel Parthey <daniel.parthey at informatik.tu-chemnitz.de> wrote:

> Last week we upgraded to 2.1.13 and since then we encountered the same issues as
> Morten Stevens. We got a lot of error messages with corrupt index cache
> and FETCH errors: So we had to roll back to dovecot 2.1.10. Now the errors are gone.
> 
> Jan 12 16:48:35 10.129.3.233 dovecot: mailbox: mail: imap(user1 at example.org): <TaljVxnT4gAKgQPp>: Error: Cached message size larger than expected (5194 > 4399)

Does reverting this change also fix it for you? http://hg.dovecot.org/dovecot-2.1/rev/6c1b4b9f527c

I guess you're using only LMTP to deliver mails? How many CPU cores do you have?

Also how much is "a lot", especially compared to the number of users you have / emails you get? I think it didn't happen very often for Morten (something like 1 error per several tens of thousands of mails?)