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https://issues.apache.org/jira/browse/FLINK-3958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15321232#comment-15321232
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Stephan Ewen commented on FLINK-3958:
-------------------------------------
I agree with Chesnay.
Since the reporter is not active util properly opened, I think this issue is
invalid.
> Access to MetricRegistry doesn't have proper synchronization in some classes
> ----------------------------------------------------------------------------
>
> Key: FLINK-3958
> URL: https://issues.apache.org/jira/browse/FLINK-3958
> Project: Flink
> Issue Type: Bug
> Reporter: Ted Yu
>
> In GraphiteReporter#getReporter():
> {code} com.codahale.metrics.graphite.GraphiteReporter.Builder builder =
> com.codahale.metrics.graphite.GraphiteReporter.forRegistry(registry);
> {code}
> Access to registry should be protected by lock on
> ScheduledDropwizardReporter.this
> Similar issue exists in GangliaReporter#getReporter()
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