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https://issues.apache.org/jira/browse/FLINK-2720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14900718#comment-14900718
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ASF GitHub Bot commented on FLINK-2720:
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Github user mjsax commented on the pull request:
https://github.com/apache/flink/pull/1157#issuecomment-141985771
This looks promising. However, how can `CountMetric` be used (without any
changes to the Spout/Bolt code within Flink? Right now it seems, that the user
has to replace `CountMetric` with `FlinkCountMetric` in `open()/prepare()`
method. However, the user code should be unchanged and the counter should be
collected by Flink under the hood, and translated into a Flink accumulator
transparently to the user. I found a nice example on the usage of metrics in
Storm: https://www.endgame.com/blog/storm-metrics-how Maybe you try to run this
code just changing `TopologyBuilder` to `FlinkTopologyBuilder` and omitting the
metric consumer for now.
> Add Storm-CountMetric in flink-stormcompatibility
> -------------------------------------------------
>
> Key: FLINK-2720
> URL: https://issues.apache.org/jira/browse/FLINK-2720
> Project: Flink
> Issue Type: New Feature
> Components: Storm Compatibility
> Reporter: Huang Wei
> Assignee: Huang Wei
> Fix For: 0.10
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> Add the CountMetric for the first step of storm metrics:
> 1.Do a wrapper FlinkCountMetric for CountMetric
> 2.push the RuntimeContext in FlinkTopologyContext to use `addAccumulator`
> method for registering the metric.
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