private static float getFloat(Configuration config, String key, float defaultValue,
    boolean moreThanOne) {
    float value = config.getFloat(key, defaultValue);
    if (value < EPSILON) {
      LOG.warn(
        String.format("%s is set to 0 or negative; using default value of %f", key, defaultValue));
      value = defaultValue;
    } else if ((value > 1f) != moreThanOne) {
      value = 1f / value;
    }
    return value;
  }
When splitting region, the maximum size imbalance to allow in an attempt to split at a stripe
boundary, so that no files go to both regions. Most users won't need to change that.
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StripeStoreConfig.java