When deploying applications you will probably want to have some **replication of processes** to take advantage of **multiple cores** and to be able to handle more requests.

As you saw in the previous chapter about [Deployment Concepts](concepts.md){.internal-link target=_blank}, there are multiple strategies you can use.

	}

	var (
		defaultSha256Cksum string
		v                  []string
		ok                 bool
	)

	// For a presigned request we look at the query param for sha256.
	if isRequestPresignedSignatureV4(r) {
		// X-Amz-Content-Sha256, if not set in presigned requests, checksum
		// will default to 'UNSIGNED-PAYLOAD'.
		defaultSha256Cksum = unsignedPayload
		v, ok = r.Form[xhttp.AmzContentSha256]
		if !ok {

         * @return A new RequestParameter object with parsed values
         */
        protected static RequestParameter parse(final HttpServletRequest request) {
            final String query = request.getParameter("q");
            final String[] tags = getParamValueArray(request, "label");
            final String[] fields = getParamValueArray(request, "field");

// administrator.
//
// - from `Subject.CommonName` field from the STS request for
// AssumeRoleWithCertificate. In this case, the policy for the STS credential
// has the same name as the value of this field.
//
// - from special JWT claim from STS request for AssumeRoleWithOIDC API (when
// not using RoleARN). The claim value can be a string or a list and refers to

import org.lastaflute.web.Execute;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.StreamResponse;

/**
 * Action class for handling cached document content requests.
 * Provides functionality to retrieve and display cached versions of crawled documents.
 */
public class CacheAction extends FessSearchAction {

    /**
     * Creates a new instance of CacheAction.
     */

    void testSequentialOperations() {
        // Given
        request.setNotifyFlags(0);
        request.setCompletionFilter(0);

        // When - first write
        byte[] buffer1 = new byte[512];
        request.writeBytesWireFormat(buffer1, 0);

        // Update values
        request.setNotifyFlags(Smb2ChangeNotifyRequest.SMB2_WATCH_TREE);
        request.setCompletionFilter(0xFFF);

        // Second write

        "upgrade".equals(request.header("Connection"), ignoreCase = true)
    try {
      exchange.writeRequestHeaders(request)

      if (hasRequestBody) {
        // If there's a "Expect: 100-continue" header on the request, wait for a "HTTP/1.1 100
        // Continue" response before transmitting the request body. If we don't get that, return
        // what we did get (such as a 4xx response) without ever transmitting the request body.

        super(client, new SuggestRequest());
        request.setReadingConverter(readingConverter);
        request.setNormalizer(normalizer);
    }

    /**
     * Sets the index for the request.
     * @param index The index name.
     * @return This builder instance.
     */
    public SuggestRequestBuilder setIndex(final String index) {
        request.setIndex(index);
        return this;
    }

    /**

        assertTrue(request.isHiraganaQuery("けんさく"));
        assertTrue(request.isHiraganaQuery("あいうえおかきくけこさしすせそたちつてとなにぬねのはひふへほまみむめもやゆよをわん"));
        assertTrue(request.isHiraganaQuery("がぎぐげござじずぜぞだぢづでどばびぶべぼ"));
        assertTrue(request.isHiraganaQuery("ぁぃぅぇぉっゃゅょ"));

        assertFalse(request.isHiraganaQuery("こ犬"));
        assertFalse(request.isHiraganaQuery("abc"));
        assertFalse(request.isHiraganaQuery("カキク"));

        MockletHttpServletRequest request = getMockRequest();
        request.setParameter("geo.location.1.point", "34,150");
        request.setParameter("geo.location.1.distance", "10km");
        request.setParameter("geo.location.2.point", "35,151");
        request.setParameter("geo.location.2.distance", "1km");

        final GeoInfo geoInfo = new GeoInfo(request);
        String result =