dlg99 opened a new pull request, #23227:
URL: https://github.com/apache/pulsar/pull/23227
### Motivation
On a specific environment /metrics end point timed out consistently, logs
contained the exception below.
Applied fix has resolved the issue.
The fix does not make much sense as String implements CharSequence, so I
suspect we hit some weird issue with JIT or jvm.
The JDK is Timurin build 17.0.12+7, I could not repro this locally but it
consistently happened in the env.
```
2024-08-23T20:40:42,618+0000 [pulsar-stats-updater-OrderedScheduler-0-0]
WARN
org.apache.bookkeeper.common.util.SingleThreadSafeScheduledExecutorService -
Unexpected throwable from task class
com.google.common.util.concurrent.MoreExecutors$ScheduledListeningDecorator$NeverSuccessfulListenableFutureTask:
'org.apache.pulsar.common.util.SimpleTextOutputStream
org.apache.pulsar.common.util.SimpleTextOutputStream.write(java.lang.String)'
java.lang.NoSuchMethodError:
'org.apache.pulsar.common.util.SimpleTextOutputStream
org.apache.pulsar.common.util.SimpleTextOutputStream.write(java.lang.String)'
at
org.apache.pulsar.utils.StatsOutputStream.startObject(StatsOutputStream.java:41)
~[com.datastax.oss-pulsar-broker-3.1.3.1.jar:3.1.3.1]
at
org.apache.pulsar.broker.service.PulsarStats.lambda$updateStats$4(PulsarStats.java:126)
~[com.datastax.oss-pulsar-broker-3.1.3.1.jar:3.1.3.1]
at
org.apache.pulsar.common.util.collections.ConcurrentOpenHashMap$Section.forEach(ConcurrentOpenHashMap.java:563)
~[com.datastax.oss-pulsar-common-3.1.3.1.jar:3.1.3.1]
at
org.apache.pulsar.common.util.collections.ConcurrentOpenHashMap.forEach(ConcurrentOpenHashMap.java:277)
~[com.datastax.oss-pulsar-common-3.1.3.1.jar:3.1.3.1]
at
org.apache.pulsar.broker.service.PulsarStats.updateStats(PulsarStats.java:120)
~[com.datastax.oss-pulsar-broker-3.1.3.1.jar:3.1.3.1]
at
org.apache.pulsar.broker.service.BrokerService.updateRates(BrokerService.java:2065)
~[com.datastax.oss-pulsar-broker-3.1.3.1.jar:3.1.3.1]
at
com.google.common.util.concurrent.MoreExecutors$ScheduledListeningDecorator$NeverSuccessfulListenableFutureTask.run(MoreExecutors.java:741)
~[com.google.guava-guava-32.1.1-jre.jar:?]
at
org.apache.bookkeeper.common.util.SingleThreadSafeScheduledExecutorService$SafeRunnable.run(SingleThreadSafeScheduledExecutorService.java:46)
~[org.apache.bookkeeper-bookkeeper-common-4.16.4.jar:4.16.4]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) ~[?:?]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
~[?:?]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
~[?:?]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
~[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
~[?:?]
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
~[io.netty-netty-common-4.1.108.Final.jar:4.1.108.Final]
at java.lang.Thread.run(Thread.java:840) ~[?:?]
```
### Modifications
Added method that takes String parameter explicitly.
Such method existed up until the change
https://github.com/apache/pulsar/pull/22494
### Verifying this change
- [ ] Make sure that the change passes the CI checks.
Verified in the env where the problem reproduces
### Does this pull request potentially affect one of the following parts:
**NO**
<!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
*If the box was checked, please highlight the changes*
- [ ] Dependencies (add or upgrade a dependency)
- [ ] The public API
- [ ] The schema
- [ ] The default values of configurations
- [ ] The threading model
- [ ] The binary protocol
- [ ] The REST endpoints
- [ ] The admin CLI options
- [ ] The metrics
- [ ] Anything that affects deployment
### 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 -->
### Matching PR in forked repository
PR in forked repository: https://github.com/datastax/pulsar/pull/308
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