[Spread-users] spread slow to notice failures

Ryan Caudy caudy at jhu.edu
Wed Apr 9 15:08:55 EDT 2003

To quote an earlier email sent by Yair:
"To me, the segment definition in your example below seems incorrect.
You should not include in a spread configuration file unless
the configuration file includes exactly one segment with exactly one

Thus, the first thing I would try is following that advice.


Generic Player wrote:
> I am testing out spread right now to do load balancing between 2 
> webservers, using wackamole.  When I first start spread, they take 
> about 10 seconds to find each other, and when I turn off one of the 
> machines, it takes 30 seconds for the other to notice and respond.
> Wackamole is fine, as soon as I see the membership event from spread, 
> wackamole moves the IPs, its just for some reason spread takes a long 
> time to notice when the other machine goes down.  I tried lowering the 
> values in membership.c, but it had no effect.  The only other thing 
> I've seen is people saying can cause slowness like this is because of 
> broadcast traffic not working, but broadcast traffic works fine from 
> what I can tell.
> r.c and s.c don't compile, so I can't really test with those.  But if I 
> ping both machines respond.  The machines are directly 
> connected to each other via crossover cable, 1000baseTX full-duplex.  
> Network connectivity is fine, no errors, good throughput.
> Here's a copy of the config, its the same on both machines.
> Spread_Segment {
> 	localhost
> }
> Spread_Segment {
> 	one
> 	two
> }
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