From 59544b03418cb55c1d28ea0db24900a3fd140d76 Mon Sep 17 00:00:00 2001
From: Xu Peng <xupeng3112@163.com>
Date: Wed, 15 May 2019 11:47:21 +0800
Subject: [PATCH] fix(db): fix cache error after load file from disk

Former-commit-id: 23dd81d168caa49451634ef7a97c6fa618c92957
---
 cpp/src/db/FaissExecutionEngine.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cpp/src/db/FaissExecutionEngine.cpp b/cpp/src/db/FaissExecutionEngine.cpp
index cc0f1046d6..9f70318a6b 100644
--- a/cpp/src/db/FaissExecutionEngine.cpp
+++ b/cpp/src/db/FaissExecutionEngine.cpp
@@ -64,13 +64,16 @@ Status FaissExecutionEngine<IndexTrait>::Serialize() {
 template<class IndexTrait>
 Status FaissExecutionEngine<IndexTrait>::Load() {
     auto index  = zilliz::vecwise::cache::CpuCacheMgr::GetInstance()->GetIndex(location_);
+    bool to_cache;
     if (!index) {
         index = read_index(location_);
-        Cache();
         LOG(DEBUG) << "Disk io from: " << location_;
     }
 
     pIndex_ = index->data();
+    if (to_cache) {
+        Cache();
+    }
     return Status::OK();
 }