Dieter Maurer <dieter@handshake.de> on 5/24/04 wrote:

...

i see, thanks. the keep ailve messages, are these nat rules, http requests? something else?

The are generated like this:

The code is executed during initialization of one product.

thanks for sharing that. that was really nice of you. It looks like it solved my problem. for the benefit of others who run into this problem, i created a directory ZEONATKeepAlive in instance_home/Products and inside there i created a file __init__.py and put the below code into it (Dieter's original unmodified code would have been fine too), and restarted zope. in my event.log i got this 2004-05-24T16:29:26 INFO(0) CustomZODB Keep alive thread started then later 2004-05-24T16:39:26 INFO(0) CustomZODB Sending keep alive message ------ 2004-05-24T16:39:26 INFO(0) CustomZODB Sent keep alive message So I suspect i installed it correctly. for those who might want the script packaged up as a normal zope product, here it is: http://files.zettai.net/ZEONATKeepAlive.tar.gz ##__init__.py ###Hard work done by Dieter Maurer, thanks! __doc__ = 'ZEO Over NAT Keep Alive' __version__ = '0.1' from thread import start_new_thread from time import sleep from zLOG import LOG, INFO, PROBLEM, ERROR from sys import exc_info from os import environ from App.config import getConfiguration KeepPeriod=600 #KeepPeriod= int(environ.get('ZEO_KEEP_ALIVE')) * 60 Storage = getConfiguration().dbtab.getDatabase('/')._storage def keepAlive(): LOG("CustomZODB",INFO,"Keep alive thread started") while 1: sleep(KeepPeriod) if Storage._ready.isSet(): LOG("CustomZODB",INFO,"Sending keep alive message") Storage._lock.acquire() try: try: Storage._server.get_info() LOG("CustomZODB",INFO,"Sent keep alive message") except: LOG("CustomZODB",ERROR,".... failed", error=exc_info()) finally: Storage._lock.release() else: LOG("CustomZODB",PROBLEM,"Connection is down") start_new_thread(keepAlive,()) <--> george donnelly ~ http://www.zettai.net/ ~ "Quality Zope Hosting" Shared and Dedicated Zope Hosting ~ Zope Servers ~ Zope Websites Yahoo, AIM: zettainet ~ ICQ: 51907738 ~ Sales (USA): 1-866-967-3669