several questions about varnishd..

[Monty Ree]

Hello list.

I am a begineer and have several questions about varnish.


1. Does varnish saves hot objects in memory? if then any memory size limit?
   and if memory is full, that saves in hdd disk?


2. any object(caching) size limit which varnish can save?
   if then, any parameter that can be changed?


3. If I add or change main config file so often,
   any recommendation?
   how about killall -HUP varnishd?


4. If I restart varnishd daemon, all saved caches are deleted and 
initialized?


Thanks in advance for your help..

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