[Zope] ZEO clients aren't duplicated

[J Cameron Cooper]

> We just did an upgrade to Zope 2.6.2 and ZEO 2 (we were on 2.6.1 and  
> ZEO 1 before). We ended up setting up clients on port 8080 this time,  
> rather than running them on 80 as we did before, but we're using the  
> same round robin Squid load balancing setup we were using previously  
> (from Toby Dickenson's howto here:  
> http://www.zope.org/Members/htrd/howto/squid). What we're noticing,  
> though, is now it looks like changes we make through our rewritten 
> URLs  are occurring on one client and not necessarily happening 
> immediately  on the other clients. I'm guessing this is a caching 
> issue or something  that we didn't have to deal with with ZEO 2, but 
> I'm not sure.

A ZEO client must make a connection to the server to learn about dirty 
objects so that it can flush its cache, since there is no way for the 
server to contact its clients. Or so I read once, and it makes sense.

Try doing something on the other client that will cause it to contact 
the server for some reason, and see if that makes the updates visible.

                --jcc

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