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Antw: Re: Replication delay
>>> Quanah Gibson-Mount <quanah@symas.com> schrieb am 25.03.2019 um 19:56 in
Nachricht <CF0FD0042D3D17C49C943E62@[192.168.1.39]>:
> --On Monday, March 25, 2019 9:34 AM +0100 "Ángel L. Mateo" <amateo@um.es>
> wrote:
>
>> * I have a farm with syncrepl running for years without any problem. This
>> farm is running 2.4.43. Servers of this farm are named canis3x
>> * I have a new farm with servers named canis41 and canis42 (with 2.4.47),
>> where:
>> ** canis41 is syncrepl with canis39 (to keep both farms synchronized)
>> ** canis41 and canis42 has delta-syncrepl between them (my idea is to
>> switch off canis3x farm and then left just this delta-syncrepl)
>>
>> The problem I'm having is with syncrepl between canis39 and canis41.
>
> None of your configurations set a keepalive. If you have any sort of load
> balancer/switch in between, they will often cut idle connections, and
> replication will stop until slapd is restarted.
>
> I recommend always defining a keepalive interval in the syncrepl stanza to
> avoid these types of issues.
>
> keepalive=240:10:30
>
> usually works well, unless the device is configured to close idle
> connections at less than a 5 minute interval.
Hi!
I don't understand that: Keepalive (as I know it) has nothing to do with idle
connections, but only with dead connections. And what's the magic with 5
minutes?
Regards,
Ulrich
>
> --Quanah
>
> --
>
> Quanah Gibson-Mount
> Product Architect
> Symas Corporation
> Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
> <http://www.symas.com>