[jira] [Created] (TS-2429) cache.config clarification

["Miles Libbey (JIRA)" <ji...@apache.org>]

Miles Libbey created TS-2429:
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             Summary: cache.config clarification
                 Key: TS-2429
                 URL: https://issues.apache.org/jira/browse/TS-2429
             Project: Traffic Server
          Issue Type: Improvement
          Components: Documentation
            Reporter: Miles Libbey


The cache.config doc could use some clarification:
- It is not clear to me what the difference between pin-in-cache and ttl-in-cache is -- when would you use one instead of the other.  For instance, a clarifying remark might be,
   - 'Use pin-in-cache when you just want to override the server's TTL' or 
   - 'Use pin-in-cache when you want to make sure all the requests for a domain are not evicted'  or 
   - 'use ttl-in-cache when a domain is not setting cache directives, but you want to cache anyway'
- It's not clear to me when 'revalidate' would kick in. Does it only apply to objects that have cache-control headers?
- I'd find it useful to have a few more combinations of examples:
{don't know if these are valid syntax}

# force a specific regex to be in cache between 7-11pm of the server's time.
url_regex=example.com/articles/popular.* time=19:00-23:00 ttl-in-cache=1d2h 

# force all requests that would be sent to myorigin.com from 192.168.0/24 to not be cached
dest_host=myorigin.com src_ip=192.168.0/24 action=never-cache



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