[DRILL-174] Physical plans for hash-partition-sender operator may not be evenly distributed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.4.0

Environment

TestHashToRandomExchange.java

• Assignee: Unassigned
• Reporter: Ben Becker
• Created: 16/Aug/13 17:40
• Updated: 31/Jul/14 06:31
• Resolved: 28/May/14 22:58

Description

The physical plan in test/resources/sender/hash_exchange.json is transformed into a hash-partition-sender op with only one host, while it should have two when run from TestHashToRandomExchange.java.

Attempting to read {
  pop : "hash-partition-sender",
  @id : 1,
  receiver-major-fragment : 1,
  child : {
    pop : "mock-sub-scan",
    @id : 2,
    url : "http://apache.org",
    entries : [ {
      records : 100,
      types : [ {
        name : "blue",
        type : "INT",
        mode : "REQUIRED"
      }, {
        name : "red",
        type : "BIGINT",
        mode : "REQUIRED"
      }, {
        name : "green",
        type : "INT",
        mode : "REQUIRED"
      } ]
    } ]
  },
  expr : "hash(red) ",
  destinations : [ "Cg4xOTIuMTY4LjE2OC45NhCk8gEYpfIB" ]
}