lhotari opened a new issue #11637:
URL: https://github.com/apache/pulsar/issues/11637
**Describe the bug**
I came a cross multiple odd log entries "Failed to process metadata store
notification
java.lang.IllegalArgumentException: Invalid namespace format. expected
<tenant>/<namespace> or <tenant>/<cluster>/<namespace> but got: public" when
investigating #11635 .
I wonder if this has recently changed. This is the log entry:
```
06:28:50.626 [metadata-store-16-1] INFO
org.apache.pulsar.common.naming.NamespaceBundleFactory - Policy updated for
namespace public/dedup-2, refreshing the bundle cache.
06:28:50.626 [metadata-store-16-1] ERROR
org.apache.pulsar.metadata.impl.AbstractMetadataStore - Failed to process
metadata store notification
java.lang.IllegalArgumentException: Invalid namespace format. expected
<tenant>/<namespace> or <tenant>/<cluster>/<namespace> but got: public
at
org.apache.pulsar.common.naming.NamespaceName.<init>(NamespaceName.java:125)
~[org.apache.pulsar-pulsar-common-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
at
org.apache.pulsar.common.naming.NamespaceName.<init>(NamespaceName.java:34)
~[org.apache.pulsar-pulsar-common-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
at
org.apache.pulsar.common.naming.NamespaceName$1.load(NamespaceName.java:46)
~[org.apache.pulsar-pulsar-common-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
at
org.apache.pulsar.common.naming.NamespaceName$1.load(NamespaceName.java:43)
~[org.apache.pulsar-pulsar-common-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
at
com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3529)
~[com.google.guava-guava-30.1-jre.jar:?]
at
com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2278)
~[com.google.guava-guava-30.1-jre.jar:?]
at
com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2155)
~[com.google.guava-guava-30.1-jre.jar:?]
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2045)
~[com.google.guava-guava-30.1-jre.jar:?]
at com.google.common.cache.LocalCache.get(LocalCache.java:3951)
~[com.google.guava-guava-30.1-jre.jar:?]
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3974)
~[com.google.guava-guava-30.1-jre.jar:?]
at
com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4935)
~[com.google.guava-guava-30.1-jre.jar:?]
at
org.apache.pulsar.common.naming.NamespaceName.get(NamespaceName.java:69)
~[org.apache.pulsar-pulsar-common-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
at
org.apache.pulsar.common.naming.NamespaceBundleFactory.handleMetadataStoreNotification(NamespaceBundleFactory.java:162)
~[org.apache.pulsar-pulsar-broker-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
at
org.apache.pulsar.metadata.impl.AbstractMetadataStore.lambda$receivedNotification$0(AbstractMetadataStore.java:149)
~[org.apache.pulsar-pulsar-metadata-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
at
java.util.concurrent.CopyOnWriteArrayList.forEach(CopyOnWriteArrayList.java:895)
~[?:1.8.0_292]
at
org.apache.pulsar.metadata.impl.AbstractMetadataStore.lambda$receivedNotification$1(AbstractMetadataStore.java:147)
~[org.apache.pulsar-pulsar-metadata-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
at
java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1604)
[?:1.8.0_292]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[?:1.8.0_292]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[?:1.8.0_292]
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
[io.netty-netty-common-4.1.66.Final.jar:4.1.66.Final]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_292]
Caused by: java.lang.IllegalArgumentException: Invalid namespace format.
namespace: public
at
org.apache.pulsar.common.naming.NamespaceName.<init>(NamespaceName.java:122)
~[org.apache.pulsar-pulsar-common-2.9.0-SNAPSHOT.jar:2.9.0-SNAPSHOT]
... 20 more
```
**To Reproduce**
The above example is from the logs of running cpp-tests (see #11635). I
assume that this happens in the master branch for all namespace policy updates.
**Expected behavior**
Namespace policy updates shouldn't result in errors.
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