Re: [Proftpd-user] mod_sftp slowness - how can I track this down

We noticed the same problem and just assumed that password fine parsing was
very slow.

About two years ago, we had 3000+ very active users and had migrated to one
of the 1.3.5 variants. With no prior high volume experience on previous
proftpd builds, we assumed that this was just poor parsing performance or
no user list caching.

Rather than try to fix the code, we threw together a mysql database and
just moved all of our users to db auth.


On Wed, Feb 17, 2021, 7:01 AM Michel van der List <
[email protected]> wrote:

> On 2/17/21 7:11 AM, Michel van der List wrote:
>
> > Just browsing directories. I send a few follow ups that
> > indicate that the fsio module (or it's interaction with RedHat
> > 8) may be the issue. I'll look into that more today.
>
> OK, tracked down the issue. The interaction with the local
> password file is just *very* slow. Reducing it to a single entry
> (from about 600) makes my problem go away. This will allow me to
> mitigate the issue on the upgraded production system. I'll look
> at the code a bit to see what changed and if I can make sense of
> it.
>
> My apologies to the moderator for sending from the wrong from
> address earlier. Just delete that message :-).
>
>
>
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