[SCB-2857] Fix endpoint metrics not properly destroy and throw exception

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: java-chassis-3.0.0, java-chassis-3.0.1
• Fix Version/s: java-chassis-3.0.2
• Component/s: Java-Chassis
• Assignee: liubao
• Reporter: liubao
• Created: 30/Jan/24 03:10
• Updated: 30/Jan/24 08:02
• Resolved: 30/Jan/24 08:02

Description

[2024-01-30 09:23:46,365][metrics-poller-0][ERROR]Failed to print perf log. [scb-metrics:142]
java.lang.NullPointerException: Cannot invoke "org.apache.servicecomb.foundation.metrics.publish.MeasurementNode.summary()" because the return value of "org.apache.servicecomb.foundation.metrics.publish.MeasurementNode.findChild(String)" is null
    at org.apache.servicecomb.metrics.core.publish.ClientEndpointsLogPublisher.print(ClientEndpointsLogPublisher.java:50) ~[classes/:?]
    at org.apache.servicecomb.metrics.core.publish.DefaultLogPublisher.printVertxMetrics(DefaultLogPublisher.java:488) ~[classes/:?]
    at org.apache.servicecomb.metrics.core.publish.DefaultLogPublisher.printLog(DefaultLogPublisher.java:153) ~[classes/:?]
    at org.apache.servicecomb.metrics.core.publish.DefaultLogPublisher.onPolledEvent(DefaultLogPublisher.java:139) ~[classes/:?]
    at org.apache.servicecomb.foundation.common.event.SimpleSubscriber.syncDispatch(SimpleSubscriber.java:118) ~[classes/:?]
    at org.apache.servicecomb.foundation.common.event.SimpleSubscriber.dispatchEvent(SimpleSubscriber.java:107) ~[classes/:?]
    at org.apache.servicecomb.foundation.common.event.SimpleEventBus.post(SimpleEventBus.java:74) ~[classes/:?]
    at org.apache.servicecomb.foundation.metrics.MetricsBootstrap.pollMeters(MetricsBootstrap.java:98) ~[classes/:?]
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) [?:?]
    at java.base/java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:305) [?:?]
    at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java) [?:?]
    at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) [?:?]
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?]
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]
    at java.base/java.lang.Thread.run(Thread.java:833) [?:?]

Issue Links

• links to: GitHub Pull Request #4209