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https://issues.apache.org/jira/browse/FLINK-19468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Boyang Jerry Peng updated FLINK-19468:
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Attachment: StreamingJob.java
> Metrics return empty when data stream / operator name contains "+"
> ------------------------------------------------------------------
>
> Key: FLINK-19468
> URL: https://issues.apache.org/jira/browse/FLINK-19468
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream
> Affects Versions: 1.9.0, 1.9.2, 1.9.3, 2.0.0
> Reporter: Boyang Jerry Peng
> Assignee: Boyang Jerry Peng
> Priority: Major
> Labels: pull-request-available
> Attachments: StreamingJob.java
>
>
> If I submit a Flink job in which the stream name has a "+" character, the
> metrics returned for the stream is always empty. Consider the following
> example:
> ```
> env.addSource(new TestSource()).name("testing + plus");
> ```
>
> If I try to get the metrics
> ```
> $ curl
> [http://localhost:8081/jobs/5d4f28a221b2e5762f8404398a462eb0/vertices/cbc357ccb763df2852fee8c4fc7d55f2/metrics?get=0.Source__testing_+_plus.numRecordsOut]
> []
> ```
> The metrics will always return empty. However if I remove the "+" from the
> name of the stream. Metrics are returned non-empty.
> Maybe it has something to do with this method:
> [https://github.com/apache/flink/blob/master/flink-runtime/src/main/java/org/apache/flink/runtime/metrics/dump/MetricQueryService.java#L208]
> It does not consider "+" character?
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