*/
    protected int queueShards = Runtime.getRuntime().availableProcessors() * 2;

    /**
     * Number of shards for the data index.
     */
    protected int dataShards = Runtime.getRuntime().availableProcessors() * 2;

    /**
     * Number of shards for the filter index.
     */
    protected int filterShards = Runtime.getRuntime().availableProcessors() * 2;

    /**
     * Number of replicas for the queue index.

    protected SuggestAnalyzer analyzer;
    /** The thread pool. */
    protected ExecutorService threadPool;

    /** The thread pool size. */
    protected int threadPoolSize = Runtime.getRuntime().availableProcessors();

    /**
     * Sets the suggest settings.
     * @param settings The suggest settings.
     * @return This builder instance.
     */
    public SuggesterBuilder settings(final SuggestSettings settings) {