diff --git a/CHANGELOG.md b/CHANGELOG.md
index fcd5230e02..ea46080777 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,13 +6,14 @@ Please mark all change in change log and use the issue from GitHub
 
 ## Bug
 -   \#2487 Enlarge timeout value for creating collection
--   \#2585 IVF_PQ on GPU with using metric_type IP
+-   \#2557 Fix random crash of INSERT_DUPLICATE_ID case
 -   \#2578 Result count doesn't match target vectors count
--   \#2557 fix random crash of INSERT_DUPLICATE_ID case
--   \#2598 fix Milvus docker image report illegal instruction
+-   \#2585 IVF_PQ on GPU with using metric_type IP
+-   \#2598 Fix Milvus docker image report illegal instruction
 -   \#2617 Fix HNSW and RNSG index files size
 -   \#2637 Suit the range of HNSW parameters
--   \#2649 search parameter of annoy has conflict with document
+-   \#2642 Create index failed and server crashed
+-   \#2649 Search parameter of annoy has conflict with document
 
 ## Feature
 
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIDMAP.cpp b/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIDMAP.cpp
index a38fba01b4..056a955abe 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIDMAP.cpp
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIDMAP.cpp
@@ -112,6 +112,22 @@ BinaryIDMAP::QueryById(const DatasetPtr& dataset_ptr, const Config& config) {
 }
 #endif
 
+int64_t
+BinaryIDMAP::Count() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
+    return index_->ntotal;
+}
+
+int64_t
+BinaryIDMAP::Dim() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
+    return index_->d;
+}
+
 void
 BinaryIDMAP::Add(const DatasetPtr& dataset_ptr, const Config& config) {
     if (!index_) {
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIDMAP.h b/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIDMAP.h
index bf3b578083..ce7da9bf04 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIDMAP.h
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIDMAP.h
@@ -56,14 +56,10 @@ class BinaryIDMAP : public VecIndex, public FaissBaseBinaryIndex {
 #endif
 
     int64_t
-    Count() override {
-        return index_->ntotal;
-    }
+    Count() override;
 
     int64_t
-    Dim() override {
-        return index_->d;
-    }
+    Dim() override;
 
     int64_t
     IndexSize() override {
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIVF.cpp b/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIVF.cpp
index 616f4c8d23..8036a42859 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIVF.cpp
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIVF.cpp
@@ -129,6 +129,22 @@ BinaryIVF::QueryById(const DatasetPtr& dataset_ptr, const Config& config) {
 }
 #endif
 
+int64_t
+BinaryIVF::Count() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
+    return index_->ntotal;
+}
+
+int64_t
+BinaryIVF::Dim() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
+    return index_->d;
+}
+
 void
 BinaryIVF::Train(const DatasetPtr& dataset_ptr, const Config& config) {
     GETTENSORWITHIDS(dataset_ptr)
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIVF.h b/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIVF.h
index e46a64e8d6..ae0991428c 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIVF.h
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexBinaryIVF.h
@@ -68,14 +68,10 @@ class BinaryIVF : public VecIndex, public FaissBaseBinaryIndex {
 #endif
 
     int64_t
-    Count() override {
-        return index_->ntotal;
-    }
+    Count() override;
 
     int64_t
-    Dim() override {
-        return index_->d;
-    }
+    Dim() override;
 
 #if 0
     DatasetPtr
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexIDMAP.cpp b/core/src/index/knowhere/knowhere/index/vector_index/IndexIDMAP.cpp
index 8f1babc840..612de45547 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexIDMAP.cpp
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexIDMAP.cpp
@@ -142,6 +142,22 @@ IDMAP::QueryById(const DatasetPtr& dataset_ptr, const Config& config) {
 }
 #endif
 
+int64_t
+IDMAP::Count() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
+    return index_->ntotal;
+}
+
+int64_t
+IDMAP::Dim() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
+    return index_->d;
+}
+
 VecIndexPtr
 IDMAP::CopyCpuToGpu(const int64_t device_id, const Config& config) {
 #ifdef MILVUS_GPU_VERSION
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexIDMAP.h b/core/src/index/knowhere/knowhere/index/vector_index/IndexIDMAP.h
index f15c665d40..128d9f99b4 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexIDMAP.h
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexIDMAP.h
@@ -54,14 +54,10 @@ class IDMAP : public VecIndex, public FaissBaseIndex {
 #endif
 
     int64_t
-    Count() override {
-        return index_->ntotal;
-    }
+    Count() override;
 
     int64_t
-    Dim() override {
-        return index_->d;
-    }
+    Dim() override;
 
     int64_t
     IndexSize() override {
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.cpp b/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.cpp
index 94133acc2f..67c797740d 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.cpp
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.cpp
@@ -217,6 +217,22 @@ IVF::GetVectorById(const DatasetPtr& dataset_ptr, const Config& config) {
 }
 #endif
 
+int64_t
+IVF::Count() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
+    return index_->ntotal;
+}
+
+int64_t
+IVF::Dim() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
+    return index_->d;
+}
+
 void
 IVF::Seal() {
     if (!index_ || !index_->is_trained) {
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.h b/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.h
index 612abc6bd1..291efe7436 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.h
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.h
@@ -59,14 +59,10 @@ class IVF : public VecIndex, public FaissBaseIndex {
 #endif
 
     int64_t
-    Count() override {
-        return index_->ntotal;
-    }
+    Count() override;
 
     int64_t
-    Dim() override {
-        return index_->d;
-    }
+    Dim() override;
 
 #if 0
     DatasetPtr
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexNSG.cpp b/core/src/index/knowhere/knowhere/index/vector_index/IndexNSG.cpp
index 301306b645..4442d056d6 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexNSG.cpp
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexNSG.cpp
@@ -149,11 +149,17 @@ NSG::Train(const DatasetPtr& dataset_ptr, const Config& config) {
 
 int64_t
 NSG::Count() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
     return index_->ntotal;
 }
 
 int64_t
 NSG::Dim() {
+    if (!index_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
     return index_->dimension;
 }
 
diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexSPTAG.cpp b/core/src/index/knowhere/knowhere/index/vector_index/IndexSPTAG.cpp
index ddbc37ec80..951a5fc314 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexSPTAG.cpp
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexSPTAG.cpp
@@ -200,11 +200,17 @@ CPUSPTAGRNG::Query(const DatasetPtr& dataset_ptr, const Config& config) {
 
 int64_t
 CPUSPTAGRNG::Count() {
+    if (!index_ptr_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
     return index_ptr_->GetNumSamples();
 }
 
 int64_t
 CPUSPTAGRNG::Dim() {
+    if (!index_ptr_) {
+        KNOWHERE_THROW_MSG("index not initialize");
+    }
     return index_ptr_->GetFeatureDim();
 }