detailed directions in index export to explain how the export can be

imported again using elasticsearch/opensearch

htroot/IndexExport_p.html

@@ -10,7 +10,6 @@
     #%env/templates/header.template%#
     #%env/templates/submenuIndexImport.template%#
 
-    
     <h2>Index Export</h2>
     <p>The local index currently contains #[ucount]# documents, only #[ucount200]# exportable with status code 200 - the remaining are error documents.</p>
 
@@ -34,9 +33,35 @@
         <dd>
         <dl>
         <dt>Full Data Records:</dt>
-        <dd><input type="radio" name="format" value="full-solr" /> XML (Rich and full-text Solr data, one document per line in one large xml file, can be processed with shell tools, can be imported with DATA/SURROGATE/in/)<br />
-            <input type="radio" name="format" value="full-elasticsearch" checked="checked" /> JSON (Rich and full-text Elasticsearch data, one document per line in one flat JSON file, can be bulk-imported to elasticsearch with the command "curl -XPOST localhost:9200/collection1/yacy/_bulk --data-binary @yacy_dump_XXX.flatjson")<br />
-            <input type="radio" name="format" value="full-rss" /> XML (RSS)</dd>
+        <dd><input type="radio" name="format" value="full-elasticsearch" checked="checked" />
+            JSON (Rich and full-text Elasticsearch data, one document per line in one flat JSON file,
+            can be bulk-imported to elasticsearch. Here is an example for opensearch, using docker:<br />
+Start docker container of opensearch:<br />
+<code>docker run --name opensearch -p 9200:9200 -d -e OPENSEARCH_JAVA_OPTS="-Xms2G -Xmx2G" -e discovery.type=single-node -e DISABLE_SECURITY_PLUGIN=true -v $(pwd)/opensearch_data:/usr/share/opensearch/data opensearchproject/opensearch:latest</code><br />
+Unblock index creation:<br />
+<code>curl -X PUT "http://localhost:9200/_cluster/settings" -H 'Content-Type: application/json' -d'
+{
+  "persistent": {
+    "cluster.blocks.create_index": null
+  }
+}'</code><br />
+Create the search index:<br />
+<code>curl -X PUT "http://localhost:9200/collection1/yacy"</code><br />
+Bulk-upload the index file:<br />
+<code>curl -XPOST "http://localhost:9200/collection1/yacy/_bulk?filter_path=took,errors" -H "Content-Type: application/x-ndjson" --data-binary @yacy_dump_XXX.flatjson</code><br />
+Make a search, get 10 results, search in fields text_t, title, description with boosts:<br />
+<code>curl -X POST "http://localhost:9200/collection1/yacy/_search" -H 'Content-Type: application/json' -d'
+{"size": 10, "query": {"multi_match": {
+    "query": "one two three",
+    "fields": ["text_t", "title^10", "description^3"], "fuzziness": "AUTO"
+}}}'</code><br />
+            <input type="radio" name="format" value="full-solr" />
+            XML (Rich and full-text Solr data, one document per line in one large xml file,
+            can be processed with shell tools, can be imported with DATA/SURROGATE/in/)
+            <br />
+            <input type="radio" name="format" value="full-rss" />
+            XML (RSS)
+        </dd>
         <dt>Full URL List:</dt>
         <dd><input type="radio" name="format" value="url-text" /> Plain Text List (URLs only)<br />
             <input type="radio" name="format" value="url-html" /> HTML (URLs with title)</dd>