[jira] [Created] (FLINK-33429) Metric collection during stabilization phase may error due to missing metrics

["Maximilian Michels (Jira)" <ji...@apache.org>]

Maximilian Michels created FLINK-33429:
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             Summary: Metric collection during stabilization phase may error due to missing metrics
                 Key: FLINK-33429
                 URL: https://issues.apache.org/jira/browse/FLINK-33429
             Project: Flink
          Issue Type: Bug
          Components: Autoscaler
    Affects Versions: kubernetes-operator-1.7.0
            Reporter: Maximilian Michels
            Assignee: Maximilian Michels
             Fix For: kubernetes-operator-1.7.0


The new code for the 1.7.0 release introduces metric collection during the stabilization phase to allow sampling the observed true processing rate. Metrics might not be fully initialized during that phase, as evident through the error metrics. The following error is thrown: 

{noformat}
java.lang.RuntimeException: Could not find required metric NUM_RECORDS_OUT_PER_SEC for 667f5d5aa757fb217b92c06f0f5d2bf2 
{noformat}

To prevent these errors shadowing actual errors, we should detect and ignore this recoverable exception.



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