Re: Replication delay
El 25/3/19 a las 19:56, Quanah Gibson-Mount escribió:
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.
Finally, it seems that the problem could be related with conections
being closed, although I don't have any network device between servers.
I have found messages like:
Apr 3 14:31:48 canis41 slapd[122414]: conn=211822 fd=21 closed
(idletimeout)
in my logs for replica connections.
I tried to configure keepalive when you suggested it, but I configured
it in just one connection of the replica.
Now I have configured it in both consumers and since (yesterday) then I
have no connections closed neither replica delays.
Now I have to find why my system is closing these connections. The
difference between the old farm and this new server is the ubuntu
version (from 14.04 to 18.04). I don't know if systemd (used in ubuntu
18.04) could be the reason.
--
Angel L. Mateo Martínez
Sección de Telemática
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