diff --git a/ci/scripts/check_ccache.sh b/ci/scripts/check_ccache.sh
index 9477433876..17e3ed2f43 100755
--- a/ci/scripts/check_ccache.sh
+++ b/ci/scripts/check_ccache.sh
@@ -41,12 +41,12 @@ if [[ -z "${ARTIFACTORY_URL}" || "${ARTIFACTORY_URL}" == "" ]];then
     exit 1
 fi
 
-for BRANCH_NAME in ${BRANCH_NAMES}
-do
-    echo "fetching ${BRANCH_NAME}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz"
-    wget -q --method HEAD "${ARTIFACTORY_URL}/${BRANCH_NAME}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz"
+check_ccache() {
+    BRANCH=$1
+    echo "fetching ${BRANCH}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz"
+    wget -q --method HEAD "${ARTIFACTORY_URL}/${BRANCH}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz"
     if [[ $? == 0 ]];then
-        wget "${ARTIFACTORY_URL}/${BRANCH_NAME}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz" && \
+        wget "${ARTIFACTORY_URL}/${BRANCH}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz" && \
         mkdir -p ${CCACHE_DIRECTORY} && \
         tar zxf ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz -C ${CCACHE_DIRECTORY} && \
         rm ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz
@@ -55,21 +55,18 @@ do
             exit 0
         fi
     fi
+}
+
+for BRANCH_NAME in ${BRANCH_NAMES}
+do
+    if [[ "${BRANCH_NAME}" != "HEAD" ]];then
+        check_ccache ${BRANCH_NAME}
+    fi
 done
 
 if [[ -n "${CHANGE_BRANCH}" && "${BRANCH_NAME}" =~ "PR-" ]];then
-    echo "fetching ${CHANGE_BRANCH}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz"
-    wget -q --method HEAD "${ARTIFACTORY_URL}/${CHANGE_BRANCH}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz"
-    if [[ $? == 0 ]];then
-        wget "${ARTIFACTORY_URL}/${CHANGE_BRANCH}/ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz" && \
-        mkdir -p ${CCACHE_DIRECTORY} && \
-        tar zxf ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz -C ${CCACHE_DIRECTORY} && \
-        rm ccache-${OS_NAME}-${CODE_NAME}-${BUILD_ENV_DOCKER_IMAGE_ID}.tar.gz
-        if [[ $? == 0 ]];then
-            echo "found cache"
-            exit 0
-        fi
-    fi
+    check_ccache ${CHANGE_BRANCH}
+    check_ccache ${BRANCH_NAME}
 fi
 
 echo "could not download cache" && exit 1
diff --git a/ci/scripts/update_ccache.sh b/ci/scripts/update_ccache.sh
index 17798088a3..f4afc29d1e 100755
--- a/ci/scripts/update_ccache.sh
+++ b/ci/scripts/update_ccache.sh
@@ -56,14 +56,16 @@ REMOTE_PACKAGE_PATH="${ARTIFACTORY_URL}/${BRANCH_NAME}"
 
 ccache --show-stats
 
-echo "Updating ccache package file: ${PACKAGE_FILE}"
-tar zcf ./${PACKAGE_FILE} -C ${HOME}/.ccache .
-echo "Uploading ccache package file ${PACKAGE_FILE} to ${REMOTE_PACKAGE_PATH}"
-curl -u${ARTIFACTORY_USER}:${ARTIFACTORY_PASSWORD} -T ${PACKAGE_FILE} ${REMOTE_PACKAGE_PATH}/${PACKAGE_FILE}
-if [[ $? == 0 ]];then
-    echo "Uploading ccache package file success !"
-    exit 0
-else
-    echo "Uploading ccache package file fault !"
-    exit 1
+if [[ "${BRANCH_NAME}" != "HEAD" ]];then
+    echo "Updating ccache package file: ${PACKAGE_FILE}"
+    tar zcf ./${PACKAGE_FILE} -C ${HOME}/.ccache .
+    echo "Uploading ccache package file ${PACKAGE_FILE} to ${REMOTE_PACKAGE_PATH}"
+    curl -u${ARTIFACTORY_USER}:${ARTIFACTORY_PASSWORD} -T ${PACKAGE_FILE} ${REMOTE_PACKAGE_PATH}/${PACKAGE_FILE}
+    if [[ $? == 0 ]];then
+        echo "Uploading ccache package file success !"
+        exit 0
+    else
+        echo "Uploading ccache package file fault !"
+        exit 1
+    fi
 fi
diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 01d0e1b9f2..bfa391f46f 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -187,7 +187,7 @@ endif ()
 add_custom_target(Clean-All COMMAND ${CMAKE_BUILD_TOOL} clean)
 
 if ("${MILVUS_DB_PATH}" STREQUAL "")
-    set(MILVUS_DB_PATH "/tmp/milvus")
+    set(MILVUS_DB_PATH "${CMAKE_INSTALL_PREFIX}")
 endif ()
 
 if (MILVUS_GPU_VERSION)