[Zope] Re: Zope 2.8.4 strange behavior

[Dieter Maurer]

Florent Guillaume wrote at 2005-11-30 01:51 +0100:
> ... sending keepalive messages to ZEO ...

>Why not use the max-disconnect-poll option of the zeoclient section in 
>zope.conf ?

Our solution is quite old. At that time, there was definitely no
"max-disconnect-poll" yet.

In addition, "max-disconnect-poll" seems to target a completely different
use case: to control the time between connection attempts.

In our case, a connection was successfully established. However,
the firewall may cut it if it is inactive for a too long period --
in a way not noticed by the endpoints.

Thus, we must prevent the connection from being idle too long --
e.g. with a keepalive mechanism.


I think, Tim wanted to implement such a keep alive mechanism
inside "ClientStorage" (to reliably detect disconnects) but
in ZODB 3.4 it seems not yet available.

-- 
Dieter