[jira] [Created] (FLINK-4733) Port WebFrontend to new metric system

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-4733:
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             Summary: Port WebFrontend to new metric system
                 Key: FLINK-4733
                 URL: https://issues.apache.org/jira/browse/FLINK-4733
             Project: Flink
          Issue Type: Improvement
          Components: Metrics, TaskManager, Webfrontend
    Affects Versions: 1.1.2
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler
             Fix For: 1.2.0


While the WebFrontend has access to the metric system it still relies on older code in some parts.

The TaskManager metrics are still gathered using the Codahale library and send with the heartbeats.

Task related metrics (numRecordsIn etc) are still gathered using accumulators, which are accessed through the execution graph.



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