Github user tillrohrmann commented on the issue:
https://github.com/apache/flink/pull/2146
I've tested the job manager metrics and everything seems to work :-)
I noticed, however, that it is not possible to submit two jobs with the
same job name and obtaining their metrics. An `InstanceAlreadyExistsException`
is thrown and the latter job is simply not reported. Would it be possible to
append a running counter to the job name if we encounter such an exception?
What do you think?
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