index.document.crawler.data.number_of_replicas=1
# Number of replicas for crawler filter index.
index.document.crawler.filter.number_of_replicas=1
# Index name for configuration data.
index.config.index=fess_config
# Index name for user data.
index.user.index=fess_user
# Index name for log data.
index.log.index=fess_log
# Prefix for dictionary index names.
index.dictionary.prefix=

# doc management

errors.required={0} is required.
errors.minlength={0} cannot be less than {1}.
success.login=Logged in successfully.
# ... approximately 200 more entries
```

### 3. Update Configuration File

Edit `src/main/resources/fess_config.properties`:

Find the `supported.languages` property (around line 202) and ensure your language code is included:

```properties

.project
.classpath
*.iml
.idea
.vscode
.DS_Store
/plugins/
/modules/
/tomcat.8080/
dbflute_fess/output/doc/lastadoc-fess.html
dbflute_fess/schema/project-lastadoc-fess.json
src/main/resources/fess_indices/fess_config.access_token/access_token.bulk
src/main/resources/ga_client_secrets.p12
src/main/webapp/WEB-INF/project.properties
/.apt_generated/
/.apt_generated_tests/
/.serena

    protected void writeFessConfig(final ZipOutputStream zos, final String id) {
        if (fessConfig instanceof SimpleImpl) {
            final Properties prop = new Properties();
            ((SimpleImpl) fessConfig).keySet().stream().forEach(k -> prop.setProperty(k, fessConfig.get(k)));

            final ZipEntry entry = new ZipEntry(id + "/fess_config.properties");
            try {
                zos.putNextEntry(entry);

        // this configuration is on fess_env.properties because this is true only when development
        direction.directDevelopmentHere(fessConfig.isDevelopmentHere());

        // titles of the application for logging are from configurations
        direction.directLoggingTitle(fessConfig.getDomainTitle(), fessConfig.getEnvironmentTitle());

        // this configuration is on sea_env.properties because it has no influence to production

├── crawler/                   # Crawling engine
├── sso/                       # SSO implementations
└── ds/                        # Data store connectors

src/main/resources/
├── fess_config.properties     # Main config
├── app.xml                    # DI configuration
├── fess_label_*.properties    # UI labels (i18n)
├── fess_message_*.properties  # Validation messages (i18n)

                }
                if ("fess_config".equals(index)) {
                    index = fessConfig.getIndexConfigIndex();
                } else if ("fess_user".equals(index)) {
                    index = fessConfig.getIndexUserIndex();
                } else if ("fess_basic_config".equals(index) && !"fess_config".equals(fessConfig.getIndexConfigIndex())) {

					-->
					<dataSet>
						<!-- Add app directory -->
						<data>
							<type>directory</type>
							<src>${project.build.directory}/fess</src>
							<excludes>**/fess_config.properties,**/fess_env*.properties,**/tika.xml</excludes>
							<mapper>
								<type>perm</type>
								<prefix>${packaging.fess.app.dir}</prefix>
								<filemode>755</filemode>

```

#### Index Settings Migration

Fess uses OpenSearch/Elasticsearch internally, so you can:

1. Export index mappings and settings from source
2. Apply custom analyzers in Fess's `fess_config.properties`
3. Create synonym dictionaries in Fess's dictionary directory

---

### Apache Solr

For migrating from Apache Solr:

#### Document Export and Import

            return get(FessConfig.APP_CIPHER_ALGORISM);
        }

        public String getAppCipherKey() {
            return get(FessConfig.APP_CIPHER_KEY);
        }

        public String getAppDigestAlgorism() {
            return get(FessConfig.APP_DIGEST_ALGORISM);
        }

        public String getAppEncryptPropertyPattern() {
            return get(FessConfig.APP_ENCRYPT_PROPERTY_PATTERN);