315157973 commented on code in PR #18235:
URL: https://github.com/apache/pulsar/pull/18235#discussion_r1007916716
##########
pulsar-zookeeper-utils/src/main/java/org/apache/pulsar/zookeeper/ZooKeeperCache.java:
##########
@@ -248,6 +245,14 @@ public CompletableFuture<Boolean> existsAsync(String path,
Watcher watcher) {
if (rc == Code.OK.intValue()) {
future.complete(true);
} else if (rc == Code.NONODE.intValue()) {
+ // remove watcher if node does not exist
+ zk.removeAllWatches(path, Watcher.WatcherType.Any, true,
+ (rc0, path0, ctx0) -> {
+ Code code0 = Code.get(rc0);
+ if (code0 != Code.OK && code0 !=
Code.NOWATCHER) {
+ log.warn("Remove watcher failed. rc: {},
path: {}", code0, path);
+ }
+ }, null);
Review Comment:
Can this repetitive code abstract a method?
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