Jackie-Jiang commented on code in PR #11354:
URL: https://github.com/apache/pinot/pull/11354#discussion_r1298132140


##########
pinot-segment-spi/src/main/java/org/apache/pinot/segment/spi/index/TextIndexConfig.java:
##########
@@ -99,6 +123,8 @@ public static abstract class AbstractBuilder {
     protected boolean _useANDForMultiTermQueries = true;
     protected List<String> _stopWordsInclude = new ArrayList<>();
     protected List<String> _stopWordsExclude = new ArrayList<>();
+    protected boolean _luceneUseCompoundFile = true;

Review Comment:
   ```suggestion
       protected boolean _luceneUseCompoundFile = 
LUCENE_INDEX_DEFAULT_USE_COMPOUND_FILE;
   ```



##########
pinot-segment-spi/src/main/java/org/apache/pinot/segment/spi/index/TextIndexConfig.java:
##########
@@ -32,15 +32,20 @@
 
 
 public class TextIndexConfig extends IndexConfig {
-  public static final TextIndexConfig DISABLED = new TextIndexConfig(true, 
null, null, false, false,
-      Collections.emptyList(), Collections.emptyList());
+  private static final int LUCENE_INDEX_DEFAULT_MAX_BUFFER_SIZE_MB = 500;

Review Comment:
   Let's also add a constant for:
   ```
     private static final int LUCENE_INDEX_DEFAULT_USE_COMPOUND_FILE = true;
   ```



##########
pinot-segment-spi/src/main/java/org/apache/pinot/segment/spi/index/TextIndexConfig.java:
##########
@@ -50,14 +55,19 @@ public TextIndexConfig(
       @JsonProperty("queryCache") boolean enableQueryCache,
       @JsonProperty("useANDForMultiTermQueries") boolean 
useANDForMultiTermQueries,
       @JsonProperty("stopWordsInclude") List<String> stopWordsInclude,
-      @JsonProperty("stopWordsExclude") List<String> stopWordsExclude) {
+      @JsonProperty("stopWordsExclude") List<String> stopWordsExclude,
+      @JsonProperty("luceneUseCompoundFile") Boolean luceneUseCompoundFile,
+      @JsonProperty("luceneMaxBufferSizeMB") Integer luceneMaxBufferSizeMB) {
     super(disabled);
     _fstType = fstType;
     _rawValueForTextIndex = rawValueForTextIndex;
     _enableQueryCache = enableQueryCache;
     _useANDForMultiTermQueries = useANDForMultiTermQueries;
     _stopWordsInclude = stopWordsInclude;
     _stopWordsExclude = stopWordsExclude;
+    _luceneUseCompoundFile = luceneUseCompoundFile == null || 
luceneUseCompoundFile; // default to useCompoundFile

Review Comment:
   ```suggestion
       _luceneUseCompoundFile = luceneUseCompoundFile == null ? 
LUCENE_INDEX_DEFAULT_USE_COMPOUND_FILE : luceneUseCompoundFile;
   ```



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