diff --git a/CHANGELOG.md b/CHANGELOG.md
index a85d7a2bbfa15938e38e9fffcc136b69704ffdc7..1cefe1fb6ecca87ab18041a80ec42c8083e3166a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,10 @@ Please mark all change in change log and use the issue from GitHub
 -   \#990 Check gpu resources setting when assign repeated value
 -   \#995 Table count set to 0 if no tables found
 -   \#1010 Improve error message when offset or page_size is equal 0
+-   \#1022 Check if partition name is valid
+-   \#1028 check if table exists when show partitions
+-   \#1029 check if table exists when try to delete partition
+-   \#1066 optimize http insert and search speed
 -   \#1022 Check if partition name is legal
 -   \#1028 Check if table exists when show partitions
 -   \#1029 Check if table exists when try to delete partition
@@ -36,6 +40,7 @@ Please mark all change in change log and use the issue from GitHub
 -   \#1507 set_config for insert_buffer_size is wrong
 -   \#1510 Add set interfaces for WAL configurations
 -   \#1511 Fix big integer cannot pass to server correctly
+-   \#1517 result is not correct when search vectors in multi partition, index type is RNSG 
 -   \#1518 Table count did not match after deleting vectors and compact
 -   \#1521 Make cache_insert_data take effect in-service
 -   \#1525 Add setter API for config preload_table
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/nsg/NSG.cpp b/core/src/index/knowhere/knowhere/index/vector_index/nsg/NSG.cpp
index 16d20142b3beaef388160d7cd57cbc3bc5e3d824..e220b42c64738046ce523d1574800677cc54f382 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/nsg/NSG.cpp
+++ b/core/src/index/knowhere/knowhere/index/vector_index/nsg/NSG.cpp
@@ -698,13 +698,8 @@ NsgIndex::Search(const float* query, const unsigned& nq, const unsigned& dim, co
                  int64_t* ids, SearchParams& params) {
     std::vector<std::vector<Neighbor>> resset(nq);
 
-    if (k >= 45) {
-        params.search_length = k;
-    }
-
     TimeRecorder rc("NsgIndex::search", 1);
-    // TODO(linxj): when to use openmp
-    if (nq <= 4) {
+    if (nq == 1) {
         GetNeighbors(query, resset[0], nsg, &params);
     } else {
 #pragma omp parallel for
@@ -733,15 +728,6 @@ NsgIndex::Search(const float* query, const unsigned& nq, const unsigned& dim, co
         }
     }
     rc.RecordSection("merge");
-
-    // ProfilerStart("xx.prof");
-    // std::vector<Neighbor> resset;
-    // GetNeighbors(query, resset, nsg, &params);
-    // for (int i = 0; i < k; ++i) {
-    //    ids[i] = resset[i].id;
-    // dist[i] = resset[i].distance;
-    //}
-    // ProfilerStop();
 }
 
 void
diff --git a/core/src/index/unittest/test_nsg/test_nsg.cpp b/core/src/index/unittest/test_nsg/test_nsg.cpp
index 76db0cd8c21143f73c0bceb4089d9cf0ef8f1842..074e3f2736a4f32e2979a3989f1d9620598f8057 100644
--- a/core/src/index/unittest/test_nsg/test_nsg.cpp
+++ b/core/src/index/unittest/test_nsg/test_nsg.cpp
@@ -233,7 +233,7 @@ TEST_F(NSGInterfaceTest, comparetest) {
 //            }
 //        }
 //    }
-//    printf("R@1 = %.4f\n", n_1 / float(nq));
+//    printf("R@1 = %.4f\n", n_1 / float(nq));;
 //    printf("R@10 = %.4f\n", n_10 / float(nq));
 //    printf("R@100 = %.4f\n", n_100 / float(nq));
 //}
diff --git a/core/src/wrapper/ConfAdapter.cpp b/core/src/wrapper/ConfAdapter.cpp
index db06504def4e2bfaee595c326c85014921d26bee..115568ba91fc83ce3bef20940a3b232e4519beae 100644
--- a/core/src/wrapper/ConfAdapter.cpp
+++ b/core/src/wrapper/ConfAdapter.cpp
@@ -225,7 +225,9 @@ NSGConfAdapter::CheckTrain(milvus::json& oricfg) {
 
     // auto tune params
     oricfg[knowhere::IndexParams::nlist] = MatchNlist(oricfg[knowhere::meta::ROWS].get<int64_t>(), 8192, 8192);
-    oricfg[knowhere::IndexParams::nprobe] = int(oricfg[knowhere::IndexParams::nlist].get<int64_t>() * 0.01);
+
+    int64_t nprobe = int(oricfg[knowhere::IndexParams::nlist].get<int64_t>() * 0.1);
+    oricfg[knowhere::IndexParams::nprobe] = nprobe < 1 ? 1 : nprobe;
 
     return true;
 }