Expand comment on DC aware local DC override

Michael Penick · Michael Penick · commit 955da66fb0f8 · 2019-08-29T11:40:48.000-04:00
diff --git a/cpp-driver/src/dc_aware_policy.cpp b/cpp-driver/src/dc_aware_policy.cpp
@@ -44,7 +44,7 @@ DCAwarePolicy::~DCAwarePolicy() { uv_rwlock_destroy(&available_rwlock_); }
 
 void DCAwarePolicy::init(const Host::Ptr& connected_host, const HostMap& hosts, Random* random,
                          const String& local_dc) {
-  if (local_dc_.empty()) { // Do not override
+  if (local_dc_.empty()) { // Only override if no local DC was specified.
     local_dc_ = local_dc;
   }
 

Original file line number	Diff line number	Diff line change
`@@ -44,7 +44,7 @@ DCAwarePolicy::~DCAwarePolicy() { uv_rwlock_destroy(&available_rwlock_); }`
`44`	`44`
`45`	`45`	`void DCAwarePolicy::init(const Host::Ptr& connected_host, const HostMap& hosts, Random* random,`
`46`	`46`	`const String& local_dc) {`
`47`		`- if (local_dc_.empty()) { // Do not override`
	`47`	`+ if (local_dc_.empty()) { // Only override if no local DC was specified.`
`48`	`48`	`local_dc_ = local_dc;`
`49`	`49`	`}`
`50`	`50`