Github user ex00 commented on the issue:
https://github.com/apache/flink/pull/2517
Could you explain me how must look API for getting metric identifier?
Now I think about this:
```java
@Test
public void testConfigurableDelimiterForReporter() {
Configuration config = new Configuration();
config.setString(ConfigConstants.METRICS_REPORTERS_LIST,
"test1");
config.setString(ConfigConstants.METRICS_SCOPE_DELIMITER, ".");
config.setString(ConfigConstants.METRICS_REPORTER_PREFIX +
"test1." + ConfigConstants.METRICS_REPORTER_SCOPE_DELIMITER, "_");
config.setString(ConfigConstants.METRICS_REPORTER_PREFIX +
"test1." + ConfigConstants.METRICS_REPORTER_CLASS_SUFFIX,
TestReporter.class.getName());
config.setString(ConfigConstants.METRICS_SCOPE_NAMING_TM,
"A.B.C.D.E");
MetricRegistry registry = new MetricRegistry(config);
TaskManagerMetricGroup tmGroup = new
TaskManagerMetricGroup(registry, "host", "id");
assertEquals("A.B.C.D.E.name",
tmGroup.getMetricIdentifier("name")); //get default delimiter for all
assertEquals("A_B_C_D_E_name",
tmGroup.getMetricIdentifier("name",null,1)); //get delimiter for first reporter
in list
registry.shutdown();
}
```
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