lmtpd triggering a delivery.db checkpointing (Cyrus 2.3.16)

[Eric Luyten]

On Wed, May 18, 2016 1:54 am, Bron Gondwana via Info-cyrus wrote:
>

>> What we do at FastMail to make deliver.db not suck is store it on tmpfs.
>> The repack is tons faster.  Sure you lose it over a full server restart,
>> but all you lose is the duplicate suppression.  If you wanted to be really
>> clever about it, you could copy the file during the shutdown script and
>> maybe once per hour otherwise, and copy it back onto tmpfs during startup.
>>
>> duplicate_db_path: /var/run/cyrus/duplicate.db
>>
>
> oh right, 2.3.x doesn't have duplicate_db_path.
>
> I think your choices are either to hack that option into your codebase so
> that you can move the duplicate DB onto tmpfs, live with what you've got
> (possibly by putting /var/imap on fast disk/SSD), or upgrade to a Cyrus that
> isn't 10 years old!


Bron,


I have an upgrade to 2.5.<LATEST> on my plate.
The approximately-once-a-day deliveries freeze is not critical.


Regards,
Eric.