[ https://issues.apache.org/jira/browse/SPARK-2011?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ankur Dave updated SPARK-2011: ------------------------------ Priority: Minor (was: Major) > Eliminate duplicate join in Pregel > ---------------------------------- > > Key: SPARK-2011 > URL: https://issues.apache.org/jira/browse/SPARK-2011 > Project: Spark > Issue Type: Improvement > Components: GraphX > Reporter: Ankur Dave > Assignee: Ankur Dave > Priority: Minor > > In the iteration loop, Pregel currently performs an innerJoin to apply > messages to vertices followed by an outerJoinVertices to join the resulting > subset of vertices back to the graph. These two operations could be merged > into a single call to joinVertices, which should be reimplemented in a more > efficient manner. This would allow us to examine only the vertices that > received messages. -- This message was sent by Atlassian JIRA (v6.2#6252)