[ https://issues.apache.org/jira/browse/FLINK-3806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Greg Hogan reassigned FLINK-3806: --------------------------------- Assignee: Greg Hogan > Revert use of DataSet.count() in Gelly > -------------------------------------- > > Key: FLINK-3806 > URL: https://issues.apache.org/jira/browse/FLINK-3806 > Project: Flink > Issue Type: Improvement > Components: Gelly > Affects Versions: 1.1.0 > Reporter: Greg Hogan > Assignee: Greg Hogan > Priority: Critical > > FLINK-1632 replaced {{GraphUtils.count}} with {{DataSetUtils.count}}. The > former returns a {{DataSet}} while the latter executes a job to return a Java > value. > {{DataSetUtils.count}} is called from {{Graph.numberOfVertices}} and > {{Graph.numberOfEdges}} which are called from {{GatherSumApplyIteration}} and > {{ScatterGatherIteration}} as well as the {{PageRank}} algorithms when the > user does not pass the number of vertices as a parameter. > As noted in FLINK-1632, this does make the code simpler but if my > understanding is correct will materialize the Graph twice. The Graph will > need to be reread from input, regenerated, or recomputed by preceding > algorithms. -- This message was sent by Atlassian JIRA (v6.3.4#6332)