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ASF GitHub Bot commented on FLINK-4624: --------------------------------------- Github user greghogan commented on the issue: https://github.com/apache/flink/pull/2527 Would a graph translator simplify the conversion from Long to String? You can do `graph.run(new TranslateEdgeValues<...>(new StringToLong())` and write a simple `public class StringToLong implements TranslateFunction<String, Long> { ...`. Or this could be an anonymous class. > Gelly's summarization algorithm cannot deal with null vertex group values > ------------------------------------------------------------------------- > > Key: FLINK-4624 > URL: https://issues.apache.org/jira/browse/FLINK-4624 > Project: Flink > Issue Type: Bug > Components: Gelly > Reporter: Till Rohrmann > Assignee: Martin Junghanns > Fix For: 1.2.0 > > > Gelly's {{Summarization}} algorithm cannot handle null values in the > `VertexGroupItem.f2`. This behaviour is hidden by using Strings as a vertex > value in the {{SummarizationITCase}}, because the {{StringSerializer}} can > handle null values. -- This message was sent by Atlassian JIRA (v6.3.4#6332)