void setConfForTest(Configuration conf) {
    setConfForTestExceptSharedCache(conf);
    initSharedCache(conf);
  }
Similar to setConf but used from within the tests
This does start the background thread for prewarm and update
@param conf
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/cache/CachedStore.java