Fix Server get stuck if create index with invalide metric types after entities inserted (#3428)

* add create index with invalid metric type case
Signed-off-by: Nyangxuan <xuan.yang@zilliz.com>

* fix bin index validation
Signed-off-by: Nyangxuan <xuan.yang@zilliz.com>

* change changelog
Signed-off-by: Nyangxuan <xuan.yang@zilliz.com>
Co-authored-by: Nyangxuan <xuan.yang@zilliz.com>

CHANGELOG.md

@@ -29,6 +29,7 @@ Please mark all changes in change log and use the issue from GitHub
 -   \#2869 Create index failed with binary vectors
 -   \#2893 Insert binary data failed
 -   \#2957 There is no exisitence check of annoy search parameter
+-   \#3407 Server get stuck if create index after entities inserted with no manual flush
 
 ## Feature
 -   \#2319 Redo metadata to support MVCC

core/src/server/ValidationUtil.cpp

@@ -362,15 +362,15 @@ ValidateIndexMetricType(const std::string& metric_type, const std::string& index
         milvus::knowhere::Metric::SUPERSTRUCTURE,
     };
 
-    if (index_type == knowhere::IndexEnum::INDEX_FAISS_IDMAP ||
-        index_type == knowhere::IndexEnum::INDEX_FAISS_BIN_IDMAP) {
+    if (index_type == knowhere::IndexEnum::INDEX_FAISS_IDMAP) {
         if (s_valid_metric.find(metric_type) == s_valid_metric.end()) {
             std::string msg =
                 "Invalid index metric type: " + metric_type + ". " + "Make sure the metric type is in MetricType list.";
             LOG_SERVER_ERROR_ << msg;
             return Status(SERVER_INVALID_INDEX_METRIC_TYPE, msg);
         }
-    } else if (index_type == knowhere::IndexEnum::INDEX_FAISS_BIN_IVFFLAT) {
+    } else if (index_type == knowhere::IndexEnum::INDEX_FAISS_BIN_IVFFLAT ||
+               index_type == knowhere::IndexEnum::INDEX_FAISS_BIN_IDMAP) {
         // binary
         if (metric_type != knowhere::Metric::HAMMING && metric_type != knowhere::Metric::JACCARD &&
             metric_type != knowhere::Metric::TANIMOTO) {

tests/milvus_python_test/test_index.py

@@ -513,6 +513,14 @@ class TestIndexBinary:
         else:
             pytest.skip("Skip index")
 
+    @pytest.fixture(
+        scope="function",
+        params=gen_binary_index()
+    )
+    def get_l2_index(self, request, connect):
+        request.param["metric_type"] = "L2"
+        return request.param
+
     @pytest.fixture(
         scope="function",
         params=[
@@ -567,6 +575,20 @@ class TestIndexBinary:
         res = connect.search(binary_collection, query, search_params=search_param)
         assert len(res) == nq
 
+    @pytest.mark.timeout(BUILD_TIMEOUT)
+    def test_create_index_invalid_metric_type_binary(self, connect, binary_collection, get_l2_index):
+        '''
+        target: test create index interface with invalid metric type
+        method: add entitys into binary connection, flash, create index with L2 metric type.
+        expected: return create_index failure
+        '''
+        # insert 6000 vectors
+        ids = connect.insert(binary_collection, binary_entities)
+        connect.flush([binary_collection])
+
+        with pytest.raises(Exception) as e:
+            res = connect.create_index(binary_collection, binary_field_name, get_l2_index)
+
     """
     ******************************************************************
       The following cases are used to test `get_index_info` function