pkuwm commented on a change in pull request #1344:
URL: https://github.com/apache/helix/pull/1344#discussion_r484530705
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File path:
helix-core/src/main/java/org/apache/helix/manager/zk/CallbackHandler.java
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@@ -646,10 +645,14 @@ private void subscribeForChanges(NotificationContext.Type
callbackType, String p
break;
}
default: {
- List<String> childNames = _zkClient.getChildren(path);
- if (childNames != null) {
- for (String childName : childNames) {
- String childPath = path + "/" + childName;
+ // When callback type is FINALIZE or PERIODIC_REFRESH,
subscribeChildChange doesn't
+ // get children list. We need to read children to unsubscribe
data change listeners.
+ if (callbackType != Type.INIT && callbackType != Type.CALLBACK) {
Review comment:
Replied above.
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