Uploaded image for project: 'Terrier Core'
  1. Terrier Core
  2. TR-289

Docid alignment is broken for MapReduce indexing when map tasks are repeated

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 3.6
    • Fix Version/s: 4.0
    • Component/s: None
    • Labels:
      None

      Description

      Recent indices created by MapReduce have docid alignment problems:

      Posting id 80368334 is too big for term 0 term0 Nt=34566754 TF=587985939 @{0 0 0} TFf=5215159,4448387,578322393
      Posting id 79259555 is too big for term d term21430718 Nt=22088033 TF=65422749 @{3 0 0} TFf=679062,312433,64431254

      This is /thought/ to be unrelated to compression changes.

        Attachments

          Activity

          craigm Craig Macdonald created issue -
          craigm Craig Macdonald made changes -
          Field Original Value New Value
          Attachment PrintIndexTerm.java [ 10415 ]
          craigm Craig Macdonald made changes -
          Attachment TREC-388.v3.6.patch [ 10418 ]
          craigm Craig Macdonald made changes -
          Summary Docid alignment is broken for MapReduce indexing Docid alignment is broken for MapReduce indexing when map tasks are repeated
          craigm Craig Macdonald made changes -
          Assignee Richard McCreadie [ richardm ] Craig Macdonald [ craigm ]
          craigm Craig Macdonald made changes -
          Attachment TREC-388.v4.patch [ 10419 ]
          craigm Craig Macdonald made changes -
          Status Open [ 1 ] Resolved [ 5 ]
          Resolution Fixed [ 1 ]
          richardm Richard McCreadie made changes -
          Project TREC [ 10010 ] Terrier Core [ 10000 ]
          Key TREC-388 TR-289
          Workflow jira [ 10834 ] Terrier Open Source [ 10852 ]
          Affects Version/s 3.6 [ 10060 ]
          Affects Version/s 3.6 [ 10061 ]
          Component/s Core [ 10020 ]
          Fix Version/s 4.0 [ 10051 ]
          Fix Version/s 4.0 [ 10050 ]

            People

            • Assignee:
              craigm Craig Macdonald
              Reporter:
              craigm Craig Macdonald
            • Watchers:
              0 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: