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  1. Apache Drill
  2. DRILL-5601

Rollup of External Sort memory management fixes

    Details

    • Type: Task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.11.0
    • Fix Version/s: 1.12.0
    • Component/s: None
    • Labels:

      Description

      Rollup of a set of specific JIRA entries that all relate to the very difficult problem of managing memory within Drill in order for the external sort to stay within a memory budget. In general, the fixes relate to better estimating memory used by the three ways that Drill allocates vector memory (see DRILL-5522) and to predicting the size of vectors that the sort will create, to avoid repeated realloc-copy cycles (see DRILL-5594).

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              • Assignee:
                paul-rogers Paul Rogers
                Reporter:
                paul-rogers Paul Rogers
                Reviewer:
                Boaz Ben-Zvi
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                  Updated:
                  Resolved: