> Generally one should use the concurrency= > children=when making your own helper. You only need > a lot of children if your helper may block for extended periods of time > for example performing DNS lookups.. I just want to be sure that, in case of a traffic spike, there are no connections denied. For now, I only use children=, but I guess I will have to learn to use pthread... ^_^ > > Also, what are the "negative lookups" of negative_ttl of external_acl_type? > > First I thought they were the ERR results, but apparently not. > It is. Indeed, I forgot that I was always replying OK and using user= to say allowed or blocked, my bad... > Not sure ttl=0 really is "no cache". It may well be cached for 0 seconds > truncated downwards (integer math using whole seconds).. The point of > the external acl interface is to get cacheability and request merging. > If you don't want these then use the url rewriter interface. If it is due to caching it is ok. I was just trying to benchmark the helper impact on the reqs/s... I might even put the cache up to 5 minutes. Thx, JD