public static boolean areOptimizationsEnabled(final Configuration conf) {
        return conf.getBoolean(
                HiveConf.ConfVars.HIVE_BLOBSTORE_OPTIMIZATIONS_ENABLED.varname,
                HiveConf.ConfVars.HIVE_BLOBSTORE_OPTIMIZATIONS_ENABLED.defaultBoolVal
        );
    }
Returns true if {@link HiveConf.ConfVars#HIVE_BLOBSTORE_OPTIMIZATIONS_ENABLED} is true, false otherwise.
common/src/java/org/apache/hadoop/hive/common/BlobStorageUtils.java