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From zentol <...@git.apache.org>
Subject [GitHub] flink issue #4769: [FLINK-7758][kafka][hotfix] Fix bug Kafka09Fetcher add ka...
Date Wed, 18 Oct 2017 14:17:29 GMT
Github user zentol commented on the issue:

    As I said, it is better to return an `UnregisteredMetricsGroup`. The current solution
will blow up the moment the returned group is used, and can't be guarded against with null


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