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Metric Anomaly Detector NPE

See original GitHub issue

After rebuilding off of head for the fixes in #217 , I see these in the logs a lot.

[2018-05-07 13:38:55,817] WARN Metric Anomaly Detector encountered exception: (com.linkedin.kafka.cruisecontrol.detector.MetricAnomalyDetector) java.lang.NullPointerException at java.util.Collections$UnmodifiableCollection.<init>(Collections.java:1026) at java.util.Collections$UnmodifiableList.<init>(Collections.java:1302) at java.util.Collections.unmodifiableList(Collections.java:1287) at com.linkedin.cruisecontrol.monitor.sampling.aggregator.ValuesAndExtrapolations.windows(ValuesAndExtrapolations.java:63) at com.linkedin.cruisecontrol.detector.metricanomaly.PercentileMetricAnomalyFinder.metricAnomalies(PercentileMetricAnomalyFinder.java:136) at com.linkedin.kafka.cruisecontrol.detector.MetricAnomalyDetector.run(MetricAnomalyDetector.java:65) 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:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748)

Issue Analytics

State:
Created 5 years ago
Comments:15 (1 by maintainers)

Top GitHub Comments

1reaction

saritagocommented, Feb 1, 2019

@efeg +1, will try it and let you know the results. Thank you !

0reactions

efegcommented, Feb 22, 2019

Closing the issue as the deadlock issue of the reported version from May 2018 has already been fixed.

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