[ZODB-Dev] ZEO client poll times

[David Pratt]

Hi Jim. Twisted has a reconnecting client with a similar feature. It 
starts at a short interval also but backs off at increasingly longer 
intervals which I think is the way to go when you are unable to reach 
the other side (but when you are obviously running a server).

6 seconds as max time sounds a bit short to me. I think there can be 
latency sometimes for whatever reason over the Internet. I would not 
want it necessarily closing connections as a result. Maybe max of 30 - 
60 sec might be better - and still not too long to wait. If folks use 
the configuration, it adjustable on the other hand. Many thanks.

Regards,
David

Jim Fulton wrote:
> 
> When a ZEO Client is disconnected from a ZEO server, it will try to 
> reconnect and keep trying until it reconnects or is closed.  It waits 
> between attempts.  The waiting period starts at 5 seconds and increases 
> to 5 minutes by default.  These times are configurable using the 
> min-disconnect-poll and max-disconnect-poll ZConfig options or with the 
> min_disconnect_poll and max_disconnect_poll constructor arguments.  
> Since most people don't change these defaults, most people's clients 
> take too long to reconnect.  I'd like to change these defaults to 
> something much smaller.  I'm thinking 1 and 6 seconds.
> Anybody have any objections to this change?
> 
> Jim
> 
> -- 
> Jim Fulton            mailto:jim at zope.com        Python Powered!
> CTO                 (540) 361-1714            http://www.python.org
> Zope Corporation    http://www.zope.com        http://www.zope.org
> 
> 
> 
> _______________________________________________
> For more information about ZODB, see the ZODB Wiki:
> http://www.zope.org/Wikis/ZODB/
> 
> ZODB-Dev mailing list  -  ZODB-Dev at zope.org
> http://mail.zope.org/mailman/listinfo/zodb-dev
>