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Posted to dev@flink.apache.org by "Chesnay Schepler (Jira)" <ji...@apache.org> on 2022/05/04 11:33:00 UTC

[jira] [Created] (FLINK-27487) KafkaMetricWrappers do incorrect cast

Chesnay Schepler created FLINK-27487:
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             Summary: KafkaMetricWrappers do incorrect cast
                 Key: FLINK-27487
                 URL: https://issues.apache.org/jira/browse/FLINK-27487
             Project: Flink
          Issue Type: Bug
          Components: Connectors / Kafka, Runtime / Metrics
    Affects Versions: 1.15.0
            Reporter: Chesnay Schepler
             Fix For: 1.16.0, 1.15.1


In FLINK-24765 the kafka metric wrappers that bridge kafka metrics into our metric system were migrated from the deprecated {{KafkaMetric#value}} to {{#metricValue}}.

This migration was done incorrectly. It was assumed that #metricValue behaves similar to #value in that it always returns a double, but this is not the case, as they may also return longs or strings.



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