frankgh commented on a change in pull request #1438:
URL: https://github.com/apache/cassandra/pull/1438#discussion_r799549978
##########
File path:
src/java/org/apache/cassandra/net/StartupClusterConnectivityChecker.java
##########
@@ -170,12 +171,10 @@ public boolean execute(Set<InetAddressAndPort> peers,
Function<InetAddressAndPor
}
else
{
+
// dc -> missing peer host addresses
Map<String, List<String>> peersDown =
acks.getMissingPeers().stream()
- .collect(groupingBy(peer
-> {
-
String dc = peerToDatacenter.get(peer);
-
return dc != null ? dc :
StringUtils.defaultString(getDatacenterSource.apply(peer), "unknown");
- },
+ .collect(groupingBy(peer
-> Optional.ofNullable(peerToDatacenter.get(peer)).orElseGet(() ->
StringUtils.defaultString(getDatacenterSource.apply(peer), "unknown")),
Review comment:
I have reverted it back to the simple null checking
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