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HCatalog maintains a cache of _________ to talk to the metastore.

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HCatalog maintains a cache of _________ to talk to the metastore.

(a) HiveServer

(b) HiveClients

(c) HCatClients

(d) All of the mentioned

I had been asked this question in homework.

This is a very interesting question from HCatalog with Hadoop in chapter Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift of Hadoop

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Right option is (b) HiveClients

Easy explanation: HCatalog manages a cache of 1 metastore client per thread, defaulting to an expiry of 120 seconds.

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