massakam opened a new pull request #2348: Fix NPE when splitting and unloading bundle URL: https://github.com/apache/incubator-pulsar/pull/2348 ### Motivation In v1.22.1 or later, NPE often occurs when a bundle is splitted and unloaded. https://gist.github.com/massakam/39b10ab273771924e8ccc458fa83b7e0 NPE occurs in the following line. It means that the bundle is not included in `ownershipCache`. https://github.com/apache/incubator-pulsar/blob/e548aa28505c3e0d40944751c85fbc9360cfcb7d/pulsar-broker/src/main/java/org/apache/pulsar/broker/namespace/NamespaceService.java#L506 I think that what we should pass to `updateFuture` is not the left element of `splittedBundles` but the right one. https://github.com/apache/incubator-pulsar/blob/e548aa28505c3e0d40944751c85fbc9360cfcb7d/pulsar-broker/src/main/java/org/apache/pulsar/broker/namespace/NamespaceService.java#L625 The left element seems to be all bundles under the namespace. Some of them are not owned by the broker and not included in `ownershipCache`. cf. https://github.com/apache/incubator-pulsar/pull/1428 ### Modifications Fixed `NamespaceService` to pass the left element of `splittedBundles` (list of bundles owened by the broker) to `updateFuture`. ### Result NPE will no longer occur and the splitted bundle will be unloaded properly.
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