[fix](inverted index) fix error when open empty index file

be/src/olap/rowset/segment_v2/inverted_index_file_reader.cpp

@@ -67,6 +67,9 @@ Status InvertedIndexFileReader::_init_from(int32_t read_buffer_size, const io::I
             if (err.number() == CL_ERR_FileNotFound) {
                 return Status::Error<ErrorCode::INVERTED_INDEX_FILE_NOT_FOUND>(
                         "inverted index file {} is not found.", index_file_full_path);
+            } else if (err.number() == CL_ERR_EmptyIndexSegment) {
+                return Status::Error<ErrorCode::INVERTED_INDEX_BYPASS>(
+                        "inverted index file {} is empty.", index_file_full_path);
             }
             return Status::Error<ErrorCode::INVERTED_INDEX_CLUCENE_ERROR>(
                     "CLuceneError occur when open idx file {}, error msg: {}", index_file_full_path,

be/src/olap/rowset/segment_v2/inverted_index_fs_directory.cpp

@@ -116,6 +116,10 @@ bool DorisFSDirectory::FSIndexInput::open(const io::FileSystemSPtr& fs, const ch
         if (h->_reader->size() == 0) {
             // may be an empty file
             LOG(INFO) << "Opened inverted index file is empty, file is " << path;
+            // need to return false to avoid the error of CLucene
+            error.set(CL_ERR_EmptyIndexSegment,
+                      fmt::format("File is empty, file is {}", path).data());
+            return false;
         }
         //Store the file length
         h->_length = h->_reader->size();

regression-test/suites/inverted_index_p0/test_variant_empty_index_file.groovy

@@ -50,8 +50,14 @@ suite("test_variant_empty_index_file", "p0") {
     if (!isCloudMode()) {
         def (code, out, err) = http_client("GET", String.format("http://%s:%s/api/show_nested_index_file?tablet_id=%s", ip, port, tablet_id))
         logger.info("Run show_nested_index_file_on_tablet: code=" + code + ", out=" + out + ", err=" + err)
-        assertEquals("E-6002", parseJson(out.trim()).status)
+        assertEquals("E-6004", parseJson(out.trim()).status)
+        assertTrue(out.contains(" is empty"))
     }
 
-    qt_sql """ select * from ${tableName} where v match 'abcd'"""
+    try {
+        sql """ select /*+ SET_VAR(enable_match_without_inverted_index = 0) */  * from ${tableName} where v match 'abcd';  """
+    } catch (Exception e) {
+        log.info(e.getMessage());
+        assertTrue(e.getMessage().contains("match_any not support execute_match"))
+    }
 }