Gopal V created TEZ-1073: ---------------------------- Summary: RLE IFile merge() fastpath Key: TEZ-1073 URL: https://issues.apache.org/jira/browse/TEZ-1073 Project: Apache Tez Issue Type: Bug Affects Versions: 0.5.0 Reporter: Gopal V Assignee: Gopal V Priority: Minor Attachments: TEZ-1073.WIP.patch
IFile iterators actually consist of a tri-state - NEW_KEY, SAME_KEY and NO_KEY. This can be used to avoid rebalancing the priority queue when the same reader is returning SAME_KEY in its reader during the initial merge operation in the reducer. -- This message was sent by Atlassian JIRA (v6.2#6252)