[ https://issues.apache.org/jira/browse/FLINK-9789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-9789: ---------------------------------- Labels: pull-request-available (was: ) > Watermark metrics for an operator&task shadow each other > -------------------------------------------------------- > > Key: FLINK-9789 > URL: https://issues.apache.org/jira/browse/FLINK-9789 > Project: Flink > Issue Type: Bug > Components: Metrics > Affects Versions: 1.5.0, 1.6.0 > Reporter: Chesnay Schepler > Assignee: Chesnay Schepler > Priority: Blocker > Labels: pull-request-available > Fix For: 1.5.2, 1.6.0 > > > In FLINK-4812 we reworked the watermark metrics to be exposed for each > operator. > In FLINK-9467 we made further modifications to also expose these metrics > again for tasks. > In both JIRAs we register a single metric multiple times, for example the > input watermark metric is registered for both the first operator in the task, > and the task itself. > Unfortunately, the metric system assumes metric objects to be unique, as can > be seen in virtually all reporter implementations as well as the > MetricQueryService. > As a result the watermark metrics override each other in the reporter, > causing only one to be reported, whichever was registered last. -- This message was sent by Atlassian JIRA (v7.6.3#76005)