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Konstantin Knauf commented on FLINK-3757: ----------------------------------------- Thank you for looking into it. I find the javadoc, quite misleading in this case. {quote} /** \* Add this accumulator. Throws an exception if the accumulator already exists. */ {quote} > addAccumulator does not throw Exception on duplicate accumulator name > --------------------------------------------------------------------- > > Key: FLINK-3757 > URL: https://issues.apache.org/jira/browse/FLINK-3757 > Project: Flink > Issue Type: Bug > Reporter: Konstantin Knauf > Priority: Minor > > Works if tasks are chained, but in many situations it does not, see > See https://gist.github.com/knaufk/a0026eff9792aa905a2f586f3b0cb112 > Is this an undocumented feature or a valid bug? -- This message was sent by Atlassian JIRA (v6.3.4#6332)