dasahcc commented on a change in pull request #1035:
URL: https://github.com/apache/helix/pull/1035#discussion_r434980493
##########
File path:
helix-core/src/main/java/org/apache/helix/manager/zk/CallbackHandler.java
##########
@@ -748,6 +756,10 @@ public void handleChildChange(String parentPath,
List<String> currentChilds) {
// removeListener will call handler.reset(), which in turn call
invoke() on FINALIZE type
_manager.removeListener(_propertyKey, _listener);
} else {
+ if (!isReady()) {
+ // avoid leaking CallbackHandler
Review comment:
Shall we print some logs here? Since there are some other info log
printed before
##########
File path:
zookeeper-api/src/main/java/org/apache/helix/zookeeper/zkclient/ZkClient.java
##########
@@ -1865,17 +1934,24 @@ public Object call() throws Exception {
* exist.
*/
public List<String> watchForChilds(final String path) {
+ return watchForChilds(path, false);
+ }
+
+ private List<String> watchForChilds(final String path, boolean
skipWatchingNodeNotExist) {
if (_zookeeperEventThread != null && Thread.currentThread() ==
_zookeeperEventThread) {
throw new IllegalArgumentException("Must not be done in the zookeeper
event thread.");
}
return retryUntilConnected(new Callable<List<String>>() {
@Override
public List<String> call() throws Exception {
- exists(path, true);
+ if (!skipWatchingNodeNotExist) {
Review comment:
But if skipWatchingNodeNotExist is true, so we skip install watcher on
parent path. Then do we still need to install watcher on childs? Shall we
directly return here?
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