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  1. Solr
  2. SOLR-805

DisMax queries are not being cached in QueryResultCache

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 1.3
    • Fix Version/s: 1.4
    • Component/s: search
    • Labels:
      None
    • Environment:

      Using Sun JDK 1.5 and Solr 1.3.0 release on Windows XP

      Description

      I have a DisMax Search Handler set up in my solrconfig.xml to weight results based on which field a hit was found in. Results seem to be coming back fine, but the exact same query issued twice will not result in a cache hit.

      I have run far enough in the debugger to determine that the hashCode for the BooleanQuery object is returning a different value each time for the same query. This leads me to believe there is some random factor involved in it's calculation, such as a default Object hashCode() implementation somewhere in the chain. Non DisMax queries seem to be caching just fine.

      Where I see this behavior exhibited is on line 47 of the QueryResultKey constructor. I have not dug in far enough to determine exactly where the hashCode is being incorrectly calculated. I will try and dig in further tomorrow, but wanted to get some attention on the bug.

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              • Assignee:
                Unassigned
                Reporter:
                tfeak Todd Feak
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                • Created:
                  Updated:
                  Resolved: