liudezhi2098 opened a new issue #7163:
URL: https://github.com/apache/pulsar/issues/7163
**Describe the bug**
Sometimes get partitioned metadata will throws NullPointerException,
because the NamespaceService not initialized yet
```bash
WARN org.apache.pulsar.broker.service.ServerCnx - Failed to get Partitioned
Metadata
[/112.0.0.1:6760] persistent://public/default/test null
java.lang.NullPointerException: null
at
org.apache.pulsar.broker.service.BrokerService.fetchPartitionedTopicMetadataCheckAllowAutoCreationAsync(Br
okerService.java:1830)
at
org.apache.pulsar.broker.admin.impl.PersistentTopicsBase.lambda$23(PersistentTopicsBase.java:2215)
at
org.apache.pulsar.broker.admin.impl.PersistentTopicsBase$$Lambda$141/1430619109.apply(Unknown
Source) ~[?:
?]
at
java.util.concurrent.CompletableFuture.doThenCompose(CompletableFuture.java:1996)
at
java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2546)
at
org.apache.pulsar.broker.admin.impl.PersistentTopicsBase.getPartitionedTopicMetadata(PersistentTopicsBase.
java:2214)
at
org.apache.pulsar.broker.service.ServerCnx.lambda$4(ServerCnx.java:469)
at
org.apache.pulsar.broker.service.ServerCnx$$Lambda$131/1787376191.apply(Unknown
Source)
at
java.util.concurrent.CompletableFuture.doThenApply(CompletableFuture.java:1530)
at
java.util.concurrent.CompletableFuture.thenApply(CompletableFuture.java:2369)
at
org.apache.pulsar.broker.service.ServerCnx.handlePartitionMetadataRequest(ServerCnx.java:467)
```
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