DisMax queries are not being cached in QueryResultCache
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Key: SOLR-805
URL: https://issues.apache.org/jira/browse/SOLR-805
Project: Solr
Issue Type: Bug
Components: search
Affects Versions: 1.3
Environment: Using Sun JDK 1.5 and Solr 1.3.0 release on Windows XP
Reporter: Todd Feak
Priority: Critical
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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