[TS-2080] Remove arbitrary 1 year max cache freshness limit

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.0.0
• Component/s: Cache
• Labels: compatibility
• Assignee: Leif Hedstrom
• Reporter: Leif Hedstrom
• Created: 28/Jul/13 23:40
• Updated: 04/Feb/16 18:55
• Resolved: 21/May/15 01:38

Description

For some reason (maybe john know's ?) we have an upper limit on cache freshness at 1 year. I have no idea why this is, the only place it's used is in HttpTransact.cc:

  max_freshness_bounds = min((MgmtInt)NUM_SECONDS_IN_ONE_YEAR, s->txn_conf->cache_guaranteed_max_lifetime);

Begs the question, why not just remove the min(), and always use the cache_guranteed_max_lifetime? This is a records.config setting, defaults to a 1 year (go figure).

  {RECT_CONFIG, "proxy.config.http.cache.guaranteed_max_lifetime", RECD_INT, "31536000", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}