[Dovecot] pop3c migration?

[Timo Sirainen]

On 21.7.2013, at 14.06, Gedalya <gedalya at gedalya.net> wrote:

> OK so now I tried a doveadm backup -R with pop3c using dovecot 2.2.4 (50117c22151e) (auto build) and it works fine, and indeed very fast.
> 
> Funny, I ran into a segmentation fault by mistakenly passing pop3c_password instead of imapc_password, thought it would be worth posting.

Fixed: http://hg.dovecot.org/dovecot-2.2/rev/1a5d92b8d3d5

> I'm using the cutting-edge dovecot over NFS storing to the production server running 2.1.7. I'll be seeing "Corrupted index cache file .. Invalid magic in hole header" when every account logs in for the first time post-migration. Is this OK? I'm using Maildir.

You should run at least v2.1.11, which adds support for v2.2 index changes. Now when those errors are happening, the entire cache file gets deleted and the performance gets worse.