diff --git a/package/package.sh b/package/package.sh
index d1561e18f00..590c6ded682 100755
--- a/package/package.sh
+++ b/package/package.sh
@@ -50,7 +50,7 @@ function _extra_release_variables {
         package_one="OFF"
         enable_compressed_debug_info="ON"
         dump_symbols="OFF"
-    fi 
+    fi
 }
 
 _default_release_variables
@@ -227,7 +227,15 @@ function dump_syms {
     tmp=${pack#nebula-graph}
     ver=${tmp%.*}
 
+    hash objcopy &> /dev/null || {
+        echo "'objcopy' is not installed"
+        exit 1
+    }
+
     for bin in nebula-graphd nebula-storaged nebula-metad; do
+        # Create separate debuginfo for GDB
+        objcopy --only-keep-debug ${build_dir}/bin/${bin} ${syms_dir}/${bin}${ver}.debug
+        # Create separate debuginfo for breakpad
         if ! (${dump_syms} ${build_dir}/bin/${bin} > ${syms_dir}/${bin}${ver}.sym); then
             echo ">>> dump ${bin} symbols failed: $?. <<<"
             exit 1
diff --git a/src/storage/mutate/DeleteEdgesProcessor.cpp b/src/storage/mutate/DeleteEdgesProcessor.cpp
index 0761fe8e7ca..41cd9142d48 100644
--- a/src/storage/mutate/DeleteEdgesProcessor.cpp
+++ b/src/storage/mutate/DeleteEdgesProcessor.cpp
@@ -103,6 +103,14 @@ void DeleteEdgesProcessor::process(const cpp2::DeleteEdgesRequest& req) {
 
       nebula::cpp2::ErrorCode err = nebula::cpp2::ErrorCode::SUCCEEDED;
       for (const auto& edgeKey : part.second) {
+        if (!NebulaKeyUtils::isValidVidLen(
+                spaceVidLen_, edgeKey.src_ref()->getStr(), edgeKey.dst_ref()->getStr())) {
+          LOG(ERROR) << "Space " << spaceId_ << " vertex length invalid, "
+                     << "space vid len: " << spaceVidLen_ << ", edge srcVid: " << *edgeKey.src_ref()
+                     << " dstVid: " << *edgeKey.dst_ref();
+          err = nebula::cpp2::ErrorCode::E_INVALID_VID;
+          break;
+        }
         auto l = std::make_tuple(spaceId_,
                                  partId,
                                  edgeKey.src_ref()->getStr(),
diff --git a/src/storage/mutate/DeleteVerticesProcessor.cpp b/src/storage/mutate/DeleteVerticesProcessor.cpp
index 6a1dccd2d3e..63a21f2ad20 100644
--- a/src/storage/mutate/DeleteVerticesProcessor.cpp
+++ b/src/storage/mutate/DeleteVerticesProcessor.cpp
@@ -114,6 +114,12 @@ ErrorOr<nebula::cpp2::ErrorCode, std::string> DeleteVerticesProcessor::deleteVer
   target.reserve(vertices.size());
   std::unique_ptr<kvstore::BatchHolder> batchHolder = std::make_unique<kvstore::BatchHolder>();
   for (auto& vertex : vertices) {
+    if (!NebulaKeyUtils::isValidVidLen(spaceVidLen_, vertex.getStr())) {
+      LOG(ERROR) << "Space " << spaceId_ << ", vertex length invalid, "
+                 << " space vid len: " << spaceVidLen_ << ",  vid is " << vertex;
+      auto code = nebula::cpp2::ErrorCode::E_INVALID_VID;
+      return code;
+    }
     batchHolder->remove(NebulaKeyUtils::vertexKey(spaceVidLen_, partId, vertex.getStr()));
     auto prefix = NebulaKeyUtils::tagPrefix(spaceVidLen_, partId, vertex.getStr());
     std::unique_ptr<kvstore::KVIterator> iter;
diff --git a/src/webservice/SetFlagsHandler.cpp b/src/webservice/SetFlagsHandler.cpp
index dcb7506a970..dc5b572663b 100644
--- a/src/webservice/SetFlagsHandler.cpp
+++ b/src/webservice/SetFlagsHandler.cpp
@@ -39,10 +39,15 @@ void SetFlagsHandler::onBody(std::unique_ptr<folly::IOBuf> body) noexcept {
 void SetFlagsHandler::onEOM() noexcept {
   folly::dynamic flags;
   try {
-    std::string body = body_->moveToFbString().toStdString();
-    flags = folly::parseJson(body);
-    if (flags.empty()) {
+    if (!body_) {
+      LOG(ERROR) << "Got an empty body";
       err_ = HttpCode::E_UNPROCESSABLE;
+    } else {
+      std::string body = body_->moveToFbString().toStdString();
+      flags = folly::parseJson(body);
+      if (flags.empty()) {
+        err_ = HttpCode::E_UNPROCESSABLE;
+      }
     }
   } catch (const std::exception &e) {
     LOG(ERROR) << "Fail to update flags: " << e.what();