[jira] [Created] (FLINK-13406) MetricConfig.getInteger() always returns null

[Shang Yuanchun (Jira)]

Ori Popowski created FLINK-13406:
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             Summary: MetricConfig.getInteger() always returns null
                 Key: FLINK-13406
                 URL: https://issues.apache.org/jira/browse/FLINK-13406
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Metrics
    Affects Versions: 1.6.3
            Reporter: Ori Popowski


{{MetricConfig}}'s {{getInteger}} will always return the default value.

The reason is, since it delegates to Java's {{Properties.getProperty}} which returns null if the type of the value is not {{String}}.
h3. Reproduce
 # Create a class {{MyReporter}} implementing {{MetricReporter}}
 # Implment the {{open()}} method so that you do {{config.getInteger("foo", null)}}
 # Start an {{ExecutionEnvironment}} with and give it the following Configuration object:

{code:java}
configuration.setString("metrics.reporters", "my");
configuration.setClass("metrics.reporter.my.class", MyReporter.class)
configuration.setInteger("metrics.reporter.my.foo", 42);{code}

 # In {{open()}} the value of {{foo}} is null.



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