whohasthis opened a new issue #6806:
URL: https://github.com/apache/skywalking/issues/6806
Please answer these questions before submitting your issue.
- Why do you submit this issue?
- [ ] Question or discussion
- [ ] Bug
- [ ] Requirement
- [ ] Feature or performance improvement
___
### Question
- What do you want to know?
___
### Bug
- Which version of SkyWalking, OS, and JRE?
8.4.0 for ES 6, running on kubernetes cluster,
- Which company or project?
- What happened?
If possible, provide a way to reproduce the error. e.g. demo application,
component version.
Each time the oap server starts, there is this NPE,
2021-04-22 07:33:21,203 -
org.apache.skywalking.oap.server.telemetry.api.HealthCheckMetrics -5667
[pool-4-thread-1] ERROR [] - Health check fails
java.lang.NullPointerException: null
at
org.apache.skywalking.oap.server.cluster.plugin.kubernetes.KubernetesCoordinator.lambda$queryRemoteNodes$2(KubernetesCoordinator.java:80)
~[cluster-kubernetes-plugin-8.4.0.jar:8.4.0]
at
java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195) ~[?:?]
at
java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) ~[?:?]
at java.util.Collections$2.tryAdvance(Collections.java:4747) ~[?:?]
at java.util.Collections$2.forEachRemaining(Collections.java:4755)
~[?:?]
at
java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[?:?]
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
~[?:?]
at
java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
~[?:?]
at
java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
at
java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578) ~[?:?]
at
org.apache.skywalking.oap.server.cluster.plugin.kubernetes.KubernetesCoordinator.queryRemoteNodes(KubernetesCoordinator.java:81)
[cluster-kubernetes-plugin-8.4.0.jar:8.4.0]
at
org.apache.skywalking.oap.server.core.remote.client.RemoteClientManager.refresh(RemoteClientManager.java:128)
[server-core-8.4.0.jar:8.4.0]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
[?:?]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
[?:?]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]
2021-04-22 07:33:21,211 -
org.apache.skywalking.oap.server.core.remote.client.RemoteClientManager -5675
[pool-4-thread-1] ERROR [] - null
org.apache.skywalking.oap.server.core.cluster.ServiceQueryException: null
at
org.apache.skywalking.oap.server.cluster.plugin.kubernetes.KubernetesCoordinator.queryRemoteNodes(KubernetesCoordinator.java:86)
~[cluster-kubernetes-plugin-8.4.0.jar:8.4.0]
at
org.apache.skywalking.oap.server.core.remote.client.RemoteClientManager.refresh(RemoteClientManager.java:128)
[server-core-8.4.0.jar:8.4.0]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
[?:?]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
[?:?]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]
___
### Requirement or improvement
- Please describe your requirements or improvement suggestions.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
