James Peach created TS-4578:
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Summary: Skip HostDB lookup for all address literals
Key: TS-4578
URL: https://issues.apache.org/jira/browse/TS-4578
Project: Traffic Server
Issue Type: Improvement
Components: Core, DNS
Reporter: James Peach
In {{HttpSM.cc}}:
{code}
if ((strncmp(t_state.dns_info.lookup_name, "127.0.0.1", 9) == 0 ||
strncmp(t_state.dns_info.lookup_name, "::1", 3) == 0) &&
ats_ip_pton(t_state.dns_info.lookup_name, t_state.host_db_info.ip()) ==
0) {
// If it's 127.0.0.1 or ::1 don't bother with hostdb
DebugSM("dns", "[HttpTransact::HandleRequest] Skipping DNS lookup for %s
because it's loopback",
t_state.dns_info.lookup_name);
t_state.dns_info.lookup_success = true;
call_transact_and_set_next_state(NULL);
break;
{code}
There's no reason to restrict address literals to loopback. It seems like we
should be able to do this for all address literals.
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