Issue:
Once Statistics Aggregator - write to Kafka is enabled, then system pipeline throws Null pointer exception and goes into fail/retry loop
2020-03-07 00:40:02,185 [user:*admin@admin] [pipeline:null/System Pipeline for Job Job for dev_4__3206279d-1385-427f-a322-2859cdb04b50__admin] [runner:] [thread:ProductionPipelineRunnable-System Pipeline for Job Job for dev_4__3206279d-1385-427f-a322>
java.lang.NullPointerException
at com.streamsets.datacollector.execution.alerts.MetricRuleEvaluatorHelper.getTimeFromRunner(MetricRuleEvaluatorHelper.java:346)
at com.streamsets.datacollector.execution.alerts.MetricRuleEvaluatorHelper.getMetricValue(MetricRuleEvaluatorHelper.java:309)
at com.streamsets.pipeline.stage.processor.statsaggregation.MetricRuleHandler.evaluateMetricRules(MetricRuleHandler.java:252)
at com.streamsets.pipeline.stage.processor.statsaggregation.MetricAggregationProcessor.evaluateRules(MetricAggregationProcessor.java:231)
Solution:
- Disable the metrics rules or upgrade the SDC to 3.14 or above version.
- This issue is tracked in Jira https://issues.streamsets.com/browse/SDC-13770