[GitHub] carbondata pull request #2275: [WIP] Fix lucene datasize and performance

[xuchuanyin]

Github user xuchuanyin commented on a diff in the pull request:

    https://github.com/apache/carbondata/pull/2275#discussion_r187769012
  
    --- Diff: 
datamap/lucene/src/main/java/org/apache/carbondata/datamap/lucene/LuceneDataMapFactoryBase.java
 ---
    @@ -61,6 +61,9 @@
     @InterfaceAudience.Internal
     abstract class LuceneDataMapFactoryBase<T extends DataMap> extends 
DataMapFactory<T> {
     
    +  static final String FLUSH_CACHE = "flush_cache";
    --- End diff --
    
    Can you explain the intention of these two properties just like you wrote 
in PR description.


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