* Get the value for the key 'index.reindex.scroll'. <br>
     * The value is, e.g. 5m <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexReindexScroll();

    /**
     * Get the value for the key 'index.reindex.max_docs'. <br>
     * The value is, e.g.  <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)