--- An unexpected error occurred in the server --- Message: java.util.concurrent.CompletionException: org.apache.pulsar.metadata.api.MetadataStoreException: org.apache.zookeeper.KeeperException$NotEmptyException: KeeperErrorCode = Directory not empty for /managed-ledgers/my-property/throttling_ns/persistent/throttlingOverride1 Stacktrace: org.apache.bookkeeper.mledger.ManagedLedgerException$MetaStoreException: java.util.concurrent.CompletionException: org.apache.pulsar.metadata.api.MetadataStoreException: org.apache.zookeeper.KeeperException$NotEmptyException: KeeperErrorCode = Directory not empty for /managed-ledgers/my-property/throttling_ns/persistent/throttlingOverride1 Caused by: java.util.concurrent.CompletionException: org.apache.pulsar.metadata.api.MetadataStoreException: org.apache.zookeeper.KeeperException$NotEmptyException: KeeperErrorCode = Directory not empty for /managed-ledgers/my-property/throttling_ns/persistent/throttlingOverride1 at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:332) at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:347) at java.base/java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:781) at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510) at java.base/java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2162) at org.apache.pulsar.metadata.impl.ZKMetadataStore.handleDeleteResult(ZKMetadataStore.java:304) at org.apache.pulsar.metadata.impl.ZKMetadataStore.lambda$batchOperation$5(ZKMetadataStore.java:216) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: org.apache.pulsar.metadata.api.MetadataStoreException: org.apache.zookeeper.KeeperException$NotEmptyException: KeeperErrorCode = Directory not empty for /managed-ledgers/my-property/throttling_ns/persistent/throttlingOverride1 at org.apache.pulsar.metadata.impl.ZKMetadataStore.getException(ZKMetadataStore.java:476) ... 9 more Caused by: org.apache.zookeeper.KeeperException$NotEmptyException: KeeperErrorCode = Directory not empty for /managed-ledgers/my-property/throttling_ns/persistent/throttlingOverride1 at org.apache.zookeeper.KeeperException.create(KeeperException.java:131) at org.apache.zookeeper.KeeperException.create(KeeperException.java:53) at org.apache.pulsar.metadata.impl.ZKMetadataStore.getException(ZKMetadataStore.java:466) ... 9 more