[GitHub] [cassandra] jonmeredith commented on a change in pull request #1520: CASSANDRA-17478

[GitBox <gi...@apache.org>]

jonmeredith commented on a change in pull request #1520:
URL: https://github.com/apache/cassandra/pull/1520#discussion_r835556968



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File path: src/java/org/apache/cassandra/locator/NetworkTopologyStrategy.java
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@@ -297,7 +298,9 @@ else if (replication != null)
                        .forEach(dc -> options.putIfAbsent(dc, defaultReplicas.toParseableString()));
         }
 
-        options.values().removeAll(Collections.singleton("0"));
+        // We do not filter out "0" due to the AUTH_KEYSPACE validation in validateExpectedOptions.
+        // The previousOptions are unavailable to that check so it is not possible to verify that all valid
+        // datacenters have an explicit configuration (even if it is 0).

Review comment:
       I don't think this is needed in general, just some specific operational checks that should be changed.




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