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  1. Flink
  2. FLINK-4396

GraphiteReporter class not found at startup of jobmanager

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.1.1
    • Fix Version/s: 1.2.0, 1.3.0
    • Component/s: Build System, Metrics
    • Labels:
      None
    • Environment:

      Windows and Unix

      Description

      For Flink 1.1.1 we configured Graphite metrics settings on the flink-conf.yaml (for job manager (and taskmanager)).

      We see the following error in the log:

      2016-08-15 14:20:34,167 ERROR org.apache.flink.runtime.metrics.MetricRegistry - Could not instantiate metrics reportermy_reporter. Metrics might not be exposed/reported.
      java.lang.ClassNotFoundException: org.apache.flink.metrics.graphite.GraphiteReporter
      at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      at java.lang.Class.forName0(Native Method)
      at java.lang.Class.forName(Class.java:264)
      at org.apache.flink.runtime.metrics.MetricRegistry.<init>(MetricRegistry.java:119)

      We found out that this class is not packaged inside flink-dist_2.11-1.1.1.jar.
      Long story short: we had to install/provide the following jars into the lib folder to make Graphite metrics to work:
      flink-metrics-graphite-1.1.1.jar
      flink-metrics-dropwizard-1.1.1.jar
      metrics-graphite-3.1.0.jar (from dropwizard)

      We think these libraries (and the ones for Ganglia,StatsD,...) should be included in flink-dist_2.11-1.1.1.jar, for these are needed at manager startup time.

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              • Assignee:
                Zentol Chesnay Schepler
                Reporter:
                rvdwenden RWenden
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