lhotari opened a new pull request, #22599:
URL: https://github.com/apache/pulsar/pull/22599
### Motivation
```
2024-04-26T09:36:28,397 - ERROR -
[ForkJoinPool.commonPool-worker-10:PersistentTopic] -
[persistent://pulsar/global/removeClusterTest/__change_events] Error closing
clients
java.util.concurrent.CompletionException:
java.util.concurrent.RejectedExecutionException: Executor is shutting down
at
java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
~[?:?]
at
java.base/java.util.concurrent.CompletableFuture.uniRunNow(CompletableFuture.java:823)
~[?:?]
at
java.base/java.util.concurrent.CompletableFuture.uniRunStage(CompletableFuture.java:803)
~[?:?]
at
java.base/java.util.concurrent.CompletableFuture.thenRunAsync(CompletableFuture.java:2204)
~[?:?]
at
org.apache.pulsar.broker.service.persistent.PersistentTopic.lambda$delete$44(PersistentTopic.java:1430)
~[classes/:?]
at
org.apache.pulsar.broker.resources.NamespaceResources$PartitionedTopicResources.lambda$runWithMarkDeleteAsync$9(NamespaceResources.java:359)
~[pulsar-broker-common-3.3.0-SNAPSHOT.jar:3.3.0-SNAPSHOT]
at
java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:863)
[?:?]
at
java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:841)
[?:?]
at
java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483)
[?:?]
at
java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) [?:?]
at
java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
[?:?]
at
java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) [?:?]
at
java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
[?:?]
at
java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
[?:?]
Caused by: java.util.concurrent.RejectedExecutionException: Executor is
shutting down
at
org.apache.bookkeeper.common.util.SingleThreadExecutor.execute(SingleThreadExecutor.java:208)
~[bookkeeper-common-4.17.0.jar:4.17.0]
at
java.base/java.util.concurrent.CompletableFuture.uniRunNow(CompletableFuture.java:817)
~[?:?]
... 12 more
```
### Modifications
- provide custom Executor that catches RejectedExecutionException and runs
in current thread in that case.
### Documentation
<!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
- [ ] `doc` <!-- Your PR contains doc changes. -->
- [ ] `doc-required` <!-- Your PR changes impact docs and you will update
later -->
- [x] `doc-not-needed` <!-- Your PR changes do not impact docs -->
- [ ] `doc-complete` <!-- Docs have been already added -->
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