protected final int num;

    /** The total number of hits. */
    protected final long total;

    /** The list of suggested items. */
    protected final List<SuggestItem> items;

    /**
     * Constructor for SuggestResponse.
     * @param index The index name.
     * @param tookMs The time taken in milliseconds.
     * @param words The list of suggested words.
     * @param total The total number of hits.

    }

    private static final long serialVersionUID = 1L;

    /**
     * Total number of hits.
     */
    private long totalHits;

    /**
     * Time taken for the search in milliseconds.
     */
    private long tookInMillis;

    /**
     * Sets the total number of hits.
     * @param totalHits The total number of hits.
     */
    public void setTotalHits(final long totalHits) {

     * @param words the list of popular words
     * @param total the total number of words
     * @param items the list of suggested items
     */
    public PopularWordsResponse(final String index, final long tookMs, final List<String> words, final long total,
            final List<SuggestItem> items) {
        this.index = index;
        this.tookMs = tookMs;

    }

    /**
     * Calculates the limit document number based on total, percentage, and number.
     * @param total The total number of documents.
     * @param limitPercentage The limit percentage.
     * @param limitNumber The limit number.
     * @return The calculated limit document number.
     */
    protected static long getLimitDocNum(final long total, final long limitPercentage, final long limitNumber) {

     *
     * @param b the buffer into which the data is read
     * @param off the start offset in array b at which the data is written
     * @param len the maximum number of bytes to read
     * @return the total number of bytes read into the buffer, or -1 if there is no more data
     * @throws IOException if an I/O error occurs
     */
    @Override

    /**
     * Returns the index name.
     * @return The index name.
     */
    public String getIndex() {
        return index;
    }

    /**
     * Returns the total number of words in the suggestion index.
     * @return The total number of words.
     */
    public long getAllWordsNum() {
        return getNum(QueryBuilders.matchAllQuery());
    }

    /**

    public void setConnectionTimeout(final Integer connectionTimeout) {
        this.connectionTimeout = connectionTimeout;
    }

    /**
     * Sets the maximum total number of connections.
     *
     * @param maxTotalConnections The maximum total connections
     */
    public void setMaxTotalConnections(final Integer maxTotalConnections) {
        this.maxTotalConnections = maxTotalConnections;
    }

```

### Connection Pool Tuning

```java
container.singleton("httpClient", HcHttpClient.class, client -> {
    client.setMaxConnections(200);          // Total connections
    client.setMaxConnectionsPerRoute(20);   // Per-host connections
    client.setConnectionTimeout(30000);     // Connection timeout
    client.setSocketTimeout(60000);         // Read timeout
});
```