public static Configuration createStoreConfiguration(Configuration conf, TableDescriptor td,
    ColumnFamilyDescriptor cfd) {
    // CompoundConfiguration will look for keys in reverse order of addition, so we'd
    // add global config first, then table and cf overrides, then cf metadata.
    return new CompoundConfiguration().add(conf).addBytesMap(td.getValues())
      .addStringMap(cfd.getConfiguration()).addBytesMap(cfd.getValues());
  }
Returns the configured bytesPerChecksum value.
@param conf The configuration
@return The bytesPerChecksum that is set in the configuration
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreUtils.java