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Heap usage during IndexWriter merging is also much lower with the new _________(a) LucCodec(b) Lucene50Codec(c) Lucene20Cod(d) All of the mentionedThis question was addressed to me during a job interview.My question is from Lucene with Hadoop in section Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift of Hadoop

Answer» CORRECT answer is (b) Lucene50Codec

For explanation: Doc VALUES and NORMS for the SEGMENTS being merged are no longer fully loaded into heap for all FIELDS


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