Can I not use tuple timeout?

[이승진]

Dear all,
 
AFAIK, spout 'assumes' processing a tuple is failed when it does not accept ack 
in timeout interval.
 
But I found that even if spout's fail method is called, that tuple is still 
running through topology i.e other bolts are still processing that tuple.
 
So actually failed tuple is not failed but just delayed.
 
I think I can configure timeout value bigger, but I want to know if there's a 
way to avoid using spout's timeout 
 
Sincerly