dasahcc commented on a change in pull request #1154:
URL: https://github.com/apache/helix/pull/1154#discussion_r455981735
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File path:
helix-core/src/main/java/org/apache/helix/spectator/RoutingTableProvider.java
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@@ -413,6 +413,31 @@ public void addRoutingTableChangeListener(
_routingTableChangeListenerMap.put(routingTableChangeListener, new
ListenerContext(context));
logger.info("Attach RoutingTableProviderChangeListener {}",
routingTableChangeListener.getClass().getName());
+ if (_sourceDataTypeMap.isEmpty()) {
Review comment:
Let's not change the API. The other customers can still use this API.
But let's have another API and old API call the new API with input value as
false (for first time refresh) to guarantee the backward compatible.
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