rob05c commented on a change in pull request #7276:
URL: https://github.com/apache/trafficserver/pull/7276#discussion_r512290716
##########
File path: proxy/http/HttpTransact.cc
##########
@@ -1856,12 +1852,9 @@ HttpTransact::ReDNSRoundRobin(State *s)
void
HttpTransact::OSDNSLookup(State *s)
{
- static const int max_dns_lookups = 3;
-
ink_assert(s->dns_info.looking_up == ORIGIN_SERVER);
- TxnDebug("http_trans", "[HttpTransact::OSDNSLookup] This was attempt %d",
s->dns_info.attempts);
Review comment:
I'm not clear on the `DNS_ATTEMPTS_EXHAUSTED` and `max_dns_lookups`
removal below.
Do these changes make it impossible for `OSDNSLookup` to ever be called more
than once in a Transaction?
If not, is this debug message useful to people?
If so, I see asserts below, how do we now make sure we don't somehow have a
loop?
Also, with the removal of the "expanded name" stuff, why would `OSDNSLookup`
ever need to be called more than once for the same transaction?
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