I don't think that they are waiting for 30 seconds. Http timeout is 5
seconds. Number of retries is 2. Delay between retries is 0.5 seconds. So it
should be at most 10.5 seconds.
But however, is there a way to see the number of active fetcher threads?

Ken Krugler wrote:
> 
> The real question is how many active fetches you have running 
> simultaneously. If most fetcher threads are idle, waiting for 30 
> seconds to pass before fetching the next page from a host, then 10 
> pages/second might be an expected fetch rate.
> 

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