[fix][broker] Immediately tombstone Deleted and Free state bundles #22743
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heesung-sn
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #22743 +/- ##
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- Coverage 73.57% 73.20% -0.38%
+ Complexity 32624 32577 -47
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Files 1877 1889 +12
Lines 139502 141433 +1931
Branches 15299 15520 +221
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+ Hits 102638 103531 +893
- Misses 28908 29905 +997
- Partials 7956 7997 +41
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…t channel ### Motivation NPE will happen in `UnloadManager#handleEvent` after apache#22743. It's because the `Init` state is always associated with a null `ServiceUnitStateData`. ``` java.lang.NullPointerException: Cannot invoke "org.apache.pulsar.broker.loadbalance.extensions.channel.ServiceUnitStateData.force()" because "data" is null at org.apache.pulsar.broker.loadbalance.extensions.manager.UnloadManager.handleEvent(UnloadManager.java:204) ~[classes/:?] at org.apache.pulsar.broker.loadbalance.extensions.channel.StateChangeListeners.lambda$notify$3(StateChangeListeners.java:74) ~[classes/:?] at java.base/java.util.concurrent.CopyOnWriteArrayList.forEach(CopyOnWriteArrayList.java:807) ~[?:?] at org.apache.pulsar.broker.loadbalance.extensions.channel.StateChangeListeners.notify(StateChangeListeners.java:72) ~[classes/:?] at org.apache.pulsar.broker.loadbalance.extensions.channel.ServiceUnitStateChannelImpl.handleInitEvent(ServiceUnitStateChannelImpl.java:902) ~[classes/:?] at org.apache.pulsar.broker.loadbalance.extensions.channel.ServiceUnitStateChannelImpl.handle(ServiceUnitStateChannelImpl.java:715) ~[classes/:?] ``` ### Modifications In `UnloadManager#handleEvent`, assume `data` is null and call `complete` directly. Fix `UnloadManagerTest`, which passes a non-null `ServiceUnitStateData` and `Init` to `handleEvent`.
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…pache#22743) (cherry picked from commit 949260f)
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…pache#22743) (cherry picked from commit 949260f) (cherry picked from commit d982d3b)
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…pache#22743) (cherry picked from commit 949260f) (cherry picked from commit d982d3b)
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…pache#22743) (cherry picked from commit 949260f) (cherry picked from commit d982d3b)
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…pache#22743) (cherry picked from commit 949260f) (cherry picked from commit d982d3b) (cherry picked from commit 44f2e98)
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Motivation
Extensible Load Balancer cannot split bundles when a namespace is recreated. The old parent bundle before split (in the Deleted state) could block the next split operation until they are tombstoned by the leader monitor bundle cleanup job.
Extensible Load Balancer delays bundle cleanups when a namespace is deleted. Those deleted bundles are stuck in Free state until they are tombstoned by the leader monitor bundle cleanup job. Although this delayed tombstone was introduced for non-transfer unloading, these lingering bundles are not ideal when the namespace is deleted.
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docdoc-requireddoc-not-neededdoc-completeMatching PR in forked repository
PR in forked repository: heesung-sn#67