```

**Step 3: Import to Fess**

Option A: Via Admin UI
1. Go to **System > Backup**
2. Upload `fess-documents.json` (bulk format)
3. Click **Import**

Option B: Via Bulk API
```bash
curl -X PUT "http://localhost:8080/api/admin/documents/bulk" \
  -H "Content-Type: application/x-ndjson" \
  -u admin:admin \
  --data-binary @fess-documents.json
```

#### Index Settings Migration

        }
    }

    /**
     * Performs bulk update operations using a custom bulk request builder.
     *
     * @param consumer Consumer function to configure the bulk request builder
     * @return true if all bulk operations were successful, false otherwise
     * @throws InterruptedRuntimeException if the operation is interrupted
     * @throws SearchEngineClientException if the bulk update fails
     */

            }
        }).execute()) {
            if (logger.isDebugEnabled()) {
                logger.debug("Bulk Response:\n{}", response.getContentAsString());
            }
            systemHelper.reloadConfiguration(resetJobs.get());

            if (logger.isInfoEnabled()) {
                logger.info("Bulk data import completed successfully: fileName={}, resetJobs={}", fileName, resetJobs.get());
            }

         */
        public void setIndexTimeout(final String timeout) {
            this.indexTimeout = timeout;
        }

        /**
         * Sets the bulk timeout.
         * @param timeout The bulk timeout.
         */
        public void setBulkTimeout(final String timeout) {
            this.bulkTimeout = timeout;
        }

        /**
         * Sets the indices timeout.

        }

    }

    /**
     * Gets the bulk buffer size for batch operations.
     *
     * @return The bulk buffer size.
     */
    public int getBulkBufferSize() {
        return bulkBufferSize;
    }

    /**
     * Sets the bulk buffer size for batch operations.
     *
     * @param bulkBufferSize The bulk buffer size.
     */

import org.codelibs.fess.util.DocList;
import org.codelibs.fess.util.MemoryUtil;
import org.opensearch.action.admin.indices.refresh.RefreshResponse;
import org.opensearch.action.bulk.BulkItemResponse;
import org.opensearch.action.bulk.BulkItemResponse.Failure;
import org.opensearch.action.bulk.BulkResponse;
import org.opensearch.action.search.SearchResponse;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

import org.codelibs.fess.suggest.normalizer.NormalizerChain;
import org.codelibs.fess.suggest.settings.AnalyzerSettings;
import org.codelibs.fess.suggest.settings.SuggestSettings;
import org.opensearch.action.bulk.BulkRequestBuilder;
import org.opensearch.action.bulk.BulkResponse;
import org.opensearch.action.delete.DeleteRequest;
import org.opensearch.action.search.SearchResponse;
import org.opensearch.common.xcontent.json.JsonXContent;

        return client.prepareDelete(index, id);
    }

    @Override
    public ActionFuture<BulkResponse> bulk(final BulkRequest request) {
        return client.bulk(request);
    }

    @Override
    public void bulk(final BulkRequest request, final ActionListener<BulkResponse> listener) {
        client.bulk(request, listener);
    }

    @Override
    public BulkRequestBuilder prepareBulk() {

    }

    @Test
    public void testBulkTimeout() {
        // Test setting bulk timeout
        SuggestSettingsBuilder result = builder.bulkTimeout("30s");
        assertEquals(builder, result); // Test method chaining
        assertEquals("30s", builder.timeoutSettings.bulkTimeout);

        // Test updating bulk timeout
        builder.bulkTimeout("120s");

import org.junit.Test;
import org.mockito.MockedStatic;
import org.mockito.Mockito;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.action.bulk.BulkRequestBuilder;
import org.opensearch.action.bulk.BulkResponse;
import org.opensearch.action.delete.DeleteRequestBuilder;
import org.opensearch.action.search.ClearScrollRequestBuilder;
import org.opensearch.action.search.ClearScrollResponse;