Hello members, Below is the piece from the default squid.conf:
# TAG: nonhierarchical_direct # By default, Squid will send any non-hierarchical requests # (matching hierarchy_stoplist or not cacheable request type) direct # to origin servers. # # If you set this to off, Squid will prefer to send these # requests to parents. # # Note that in most configurations, by turning this off you will only # add latency to these request without any improvement in global hit # ratio. # # If you are inside an firewall see never_direct instead of # this directive. # #Default: # nonhierarchical_direct on # TAG: prefer_direct # Normally Squid tries to use parents for most requests. If you for some # reason like it to first try going direct and only use a parent if # going direct fails set this to on. # # By combining nonhierarchical_direct off and prefer_direct on you # can set up Squid to use a parent as a backup path if going direct # fails. # # Note: If you want Squid to use parents for all requests see # the never_direct directive. prefer_direct only modifies how Squid # acts on cacheable requests. # #Default: # prefer_direct off I'm confused about this statement: # By combining nonhierarchical_direct off and prefer_direct on you # can set up Squid to use a parent as a backup path if going direct # fails. Why it's "nonhierarchical_direct off and prefer_direct on"? I think it should be "nonhierarchical_direct on and prefer_direct on". Thanks for the kind helps.
