Hi Quanah,

I feel stupid for not having googled "openldap keepalive", and instead write to the list.

I have read so much (and seen so many samples) about replication configuration lately, that I thought I did everything correctly.

Thanks for patiently pointing at what I should have been able to find out myself.

On Wed, 11 Oct 2023 at 16:29, Quanah Gibson-Mount <quanah@fast-mail.org> wrote:

--On Wednesday, October 11, 2023 4:49 PM +0200 cYuSeDfZfb cYuSeDfZfb
<cyusedfzfb@gmail.com> wrote:

>
>
> Hi,
>
>
> Of course I add many more details like detailed configs and logs, just
> ask.
>
>
> We have a 4-host MMR setup, that all replicate to the three others,
> relevant snippets from the config:
>
> We wondered what could cause this behaviour, and started thinking in the
> direction of long-lived tcp connections that perhaps are used in
> refreshAndPersist functionality. (much like in IMAP idle)
>
>
> Is anything special needed to make refreshAndPersistwork reliably through
> firewalls, and across subnets? Does refreshAndPersistwork use (some kind
> of) long-lived network connections..? Is there a kind of "keepalive"
> setting that we could try..?

Read the section on keepalive settings. This is a common issue with
firewalls and why those settings were introduced. I usually use
keepalive=240:10:30 to go under the (usually default) 5 minute disconnect
most firewalls have.

--Quanah