[Dovecot] mail_fsync=never doesn't work?

[Attila Nagy]

  On 09/27/10 23:26, Timo Sirainen wrote:
>> Thanks! But shouldn't "Avoid fsyncing subscriptions file when it doesn't change or if mail_fsync=never." be "Avoid re-writing subscriptions file when it doesn't change and fsyncing it if mail_fsync=never."?
>> I mean (I haven't read the code context) if you know that it does not change, why write?
> Ah, but I don't know :) The possibilities are:
>
> a) Open a temp file and start writing new subscriptions to it. If we notice that the subscription is there already, abort and delete the temp file. This is how it works now.
I see, thanks.
> That's because you have 4 autosubscribe entries. The current code doesn't allow doing multiple subscription changes at once. But anyway, again, the problem here is the autocreate plugin. I hated even adding it to included plugins, but too many people just wanted it.
Sadly, I'm one of them. Currently during the provisioning it's not 
guaranteed that a user will have a mailbox in the file system, so 
autocreating it during pop logins is a bless. :)
But I will keep this in mind and will remove it as soon as I can.
> (v2.1 way of handling it would be to have kind of virtual mailbox names that are always listed, but actually physically created only when it's opened the first time. That way you could also change them and if user has never actually accessed a removed mailbox it would automatically also disappear.)
Sounds good.