--- a/src/luan/modules/lucene/LuceneIndex.java	Thu May 12 10:56:45 2022 -0600
+++ b/src/luan/modules/lucene/LuceneIndex.java	Thu May 26 21:10:02 2022 -0600
@@ -81,6 +81,7 @@
 import goodjava.lucene.api.LuceneUtils;
 import goodjava.lucene.logging.LoggingIndexWriter;
 import goodjava.lucene.logging.OpDoer;
+import goodjava.lucene.backup.BackupIndexWriter;
 import goodjava.parser.ParseException;
 import luan.modules.Utils;
 import luan.Luan;
@@ -146,6 +147,9 @@
 	private boolean wasCreated;
 	private final File logDir;
 	private final long logTime;
+	private final String name;
+	private final String domain;
+	private final String password;
 
 	private LuceneIndex(Luan luan,File indexDir,LuanTable options)
 		throws LuanException, IOException, ClassNotFoundException, SQLException
@@ -159,8 +163,24 @@
 		LuanFunction supplementer = Utils.removeFunction(options,"supplementer");
 		logDir = (File)options.remove("log_dir");
 		logTime = (Long)options.remove("log_time");
+		name = (String)options.remove("name");
 		Utils.checkEmpty(options);
 
+		{
+			LuanTable module = (LuanTable)luan.require("luan:http/Http.luan");
+			String domain = (String)module.get(luan,"domain");
+			if( domain == null )
+				domain = "localhost";
+			this.domain = domain;
+		}
+		{
+			LuanTable module = (LuanTable)luan.require("luan:Io.luan");
+			String password = (String)module.get(luan,"password");
+			if( password == null )
+				password = "password";
+			this.password = password;
+		}
+
 		mfp = defaultFieldParser==null ? new MultiFieldParser() : new MultiFieldParser(defaultFieldParser,defaultFields);
 		mfp.fields.put( "type", STRING_FIELD_PARSER );
 		mfp.fields.put( "id", NumberFieldParser.LONG );
@@ -193,8 +213,17 @@
 		fsDir = FSDirectory.open(indexDir);
 		boolean wasCreated = !fsDir.getDirectory().exists();
 		writer = new LuceneIndexWriter(fsDir,config);
-		if( logDir != null )
-			writer = new LoggingIndexWriter((LuceneIndexWriter)writer,logDir,logTime);
+		if( logDir != null ) {
+			if( BackupIndexWriter.backupDomains == null ) {
+				writer = new LoggingIndexWriter((LuceneIndexWriter)writer,logDir,logTime);
+			} else {
+				String name = this.domain;
+				if( this.name != null )
+					name += "~" + this.name;
+				writer = new BackupIndexWriter((LuceneIndexWriter)writer,logDir,logTime,name,password);
+//qqq
+			}
+		}
 		reader = DirectoryReader.open(fsDir);
 		searcher = new IndexSearcher(reader);
 		initId();