masaori335 commented on code in PR #13368:
URL: https://github.com/apache/trafficserver/pull/13368#discussion_r3725183536
##########
src/proxy/ParentConsistentHash.cc:
##########
@@ -151,6 +151,14 @@ ParentConsistentHash::selectParent(bool first_call,
ParentResult *result, Reques
HostStatus &pStatus = HostStatus::instance();
TSHostStatus host_stat = TSHostStatus::TS_HOST_STATUS_INIT;
+ // Bound the all-down ring walk: read each distinct parent's status at most
once.
+ // Sized to the pool -- num_parents is not capped at MAX_PARENTS, so a fixed
array would overflow.
+ int const num_parents_in_ring[2] = {result->rec->num_parents,
result->rec->num_secondary_parents};
+ std::vector<bool> seen_parent[2] =
{std::vector<bool>(num_parents_in_ring[PRIMARY]),
+
std::vector<bool>(num_parents_in_ring[SECONDARY])};
Review Comment:
Changed to use `ts::LocalBuffer` by
`[dab31ac](https://github.com/apache/trafficserver/pull/13368/commits/dab31acf1c0338dcd74d603cf85bbb08fdcafe90)`
##########
src/proxy/ParentConsistentHash.cc:
##########
@@ -151,6 +151,14 @@ ParentConsistentHash::selectParent(bool first_call,
ParentResult *result, Reques
HostStatus &pStatus = HostStatus::instance();
TSHostStatus host_stat = TSHostStatus::TS_HOST_STATUS_INIT;
+ // Bound the all-down ring walk: read each distinct parent's status at most
once.
+ // Sized to the pool -- num_parents is not capped at MAX_PARENTS, so a fixed
array would overflow.
+ int const num_parents_in_ring[2] = {result->rec->num_parents,
result->rec->num_secondary_parents};
+ std::vector<bool> seen_parent[2] =
{std::vector<bool>(num_parents_in_ring[PRIMARY]),
+
std::vector<bool>(num_parents_in_ring[SECONDARY])};
Review Comment:
Changed to use `ts::LocalBuffer` by dab31acf1c0338dcd74d603cf85bbb08fdcafe90
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