Aljoscha Krettek created FLINK-4064:
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Summary: Allow calling MetricGroup methods multiple times
Key: FLINK-4064
URL: https://issues.apache.org/jira/browse/FLINK-4064
Project: Flink
Issue Type: Sub-task
Components: Metrics
Affects Versions: 1.1.0
Reporter: Aljoscha Krettek
Right now, the methods on {{MetricGroup}} can only be called once, i.e. I have
to keep the result of {{MetricGroup.counter(name)}} and use that to report
metrics. For some cases, such as adding metrics support in triggers, it is
necessary to allow calling a method multiple times and return the same metric
object. On the first call, a new metric object would be created, subsequent
calls would return that metric object.
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