Hi all, I'm running a Beam pipeline on Flink and sending metrics via the Graphite reporter. I get repeated exceptions on the slaves, which try to register the same metric multiple times. Jobmanager and taskmanager data is fine: I can see JVM stuff, but only one datapoint here and there for tasks/operations.
I am using Beam 2.1.0, and am thus running Flink 1.3.0. What can be the cause of this or how can I find out? Below you'll find the error, followed by Flink's metrics configuration. Reinier ------ Log message: [ERROR] Error while registering metric. Stack trace: java.lang.IllegalArgumentException: A metric named bla.hdp-slave-015.taskmanager.3e32c83dedd7f4c7de3c41e2cb6d2a4a.bla-0929120623-613dc6af.operator.Map (Key Extractor).15.numRecordsOutPerSecond already exists at com.codahale.metrics.MetricRegistry.register(MetricRegistry.java:91) at org.apache.flink.dropwizard.ScheduledDropwizardReporter.notifyOfAddedMetric(ScheduledDropwizardReporter.java:151) at org.apache.flink.runtime.metrics.MetricRegistry.register(MetricRegistry.java:294) at org.apache.flink.runtime.metrics.groups.AbstractMetricGroup.addMetric(AbstractMetricGroup.java:370) at org.apache.flink.runtime.metrics.groups.AbstractMetricGroup.meter(AbstractMetricGroup.java:336) at org.apache.flink.runtime.metrics.groups.OperatorIOMetricGroup.<init>(OperatorIOMetricGroup.java:42) at org.apache.flink.runtime.metrics.groups.OperatorMetricGroup.<init>(OperatorMetricGroup.java:45) at org.apache.flink.runtime.metrics.groups.TaskMetricGroup.addOperator(TaskMetricGroup.java:133) at org.apache.flink.runtime.operators.chaining.ChainedDriver.setup(ChainedDriver.java:72) at org.apache.flink.runtime.operators.BatchTask.initOutputs(BatchTask.java:1299) at org.apache.flink.runtime.operators.BatchTask.initOutputs(BatchTask.java:1015) at org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:256) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702) at java.lang.Thread.run(Thread.java:748) ------ metrics.reporters: graphite metrics.reporter.graphite.class: org.apache.flink.metrics.graphite.GraphiteReporter metrics.reporter.graphite.host: something metrics.reporter.graphite.port: 2003 metrics.reporter.graphite.protocol: TCP metrics.reporter.graphite.interval: 1 SECONDS metrics.scope.jm: bla.<host>.jobmanager metrics.scope.jm.job: bla.<host>.jobmanager.<job_name> metrics.scope.tm: bla.<host>.taskmanager.<tm_id> metrics.scope.tm.job: bla.<host>.taskmanager.<tm_id>.<job_name> metrics.scope.task: bla.<host>.taskmanager.<tm_id>.<job_name>.task.<task_name>.<subtask_index> metrics.scope.operator: bla.<host>.taskmanager.<tm_id>.<job_name>.operator.<operator_name>.<subtask_index>
