rayluoluo opened a new pull request, #23192:
URL: https://github.com/apache/pulsar/pull/23192
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<!-- Either this PR fixes an issue, -->
Fixes #23191
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### Motivation
<!-- Explain here the context, and why you're making that change. What is
the problem you're trying to solve. -->
If the pre-installed NIC is not activated, the NIC driver is not supported,
or a virtual NIC is used, the software may fail to read the NIC speed. As a
result, the pulsar broker continuously prints error logs every minute. In fact,
the system is not in a fault state in these cases. In addition, repeated error
logs increase performance overhead and log storage space, and affect log
reading and analysis.
An example of the error log is as follows:
```
[pulsar-load-manager-1-1] ERROR
o.a.p.b.loadbalance.impl.LinuxBrokerHostUsageImpl - Failed to read speed for
nic enp180s0v0, maybe you can set broker config
[loadBalancerOverrideBrokerNicSpeedGbps] to override it.
java.io.IOException: Invalid argument
at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
at sun.nio.ch.FileDispatcherImpl.read(FileDispatcherImpl.java:46)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
at sun.nio.ch.IOUtil.read(IOUtil.java:197)
at sun.nio.ch.FileChannelImpl.read(FileChannelImpl.java:159)
at sun.nio.ch.ChannelInputStream.read(ChannelInputStream.java:65)
at sun.nio.ch.ChannelInputStream.read(ChannelInputStream.java:109)
at sun.nio.ch.ChannelInputStream.read(ChannelInputStream.java:103)
at java.nio.file.Files.read(Files.java:3105)
at java.nio.file.Files.readAllBytes(Files.java:3158)
at
org.apache.pulsar.broker.loadbalance.impl.LinuxBrokerHostUsageImpl.lambda$null$3(LinuxBrokerHostUsageImpl.java:255)
at
java.util.stream.ReferencePipeline$6$1.accept(ReferencePipeline.java:244)
at
java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1384)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
at
java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.DoublePipeline.collect(DoublePipeline.java:500)
at java.util.stream.DoublePipeline.sum(DoublePipeline.java:411)
at
org.apache.pulsar.broker.loadbalance.impl.LinuxBrokerHostUsageImpl.lambda$getTotalNicLimitKbps$4(LinuxBrokerHostUsageImpl.java:261)
at java.util.Optional.orElseGet(Optional.java:267)
at
org.apache.pulsar.broker.loadbalance.impl.LinuxBrokerHostUsageImpl.getTotalNicLimitKbps(LinuxBrokerHostUsageImpl.java:252)
at
org.apache.pulsar.broker.loadbalance.impl.LinuxBrokerHostUsageImpl.calculateBrokerHostUsage(LinuxBrokerHostUsageImpl.java:104)
at
org.apache.pulsar.common.util.Runnables$CatchingAndLoggingRunnable.run(Runnables.java:54)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:750)
```
### Modifications
<!-- Describe the modifications you've done. -->
Actually, the system is not in the faulty state. It's ok to change the log
level to debug.
### Verifying this change
- [x] Make sure that the change passes the CI checks.
### Documentation
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- [ ] `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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