Merge branch 'branch-0.5.0' into 'branch-0.5.0'

MS-611 Add resources validity check in ResourceMgr

See merge request megasearch/milvus!662

Former-commit-id: bd4b9327b9fbd101e6811f6002f4dae4ff105f05

cpp/src/scheduler/ResourceMgr.cpp

@@ -105,6 +105,8 @@ void
 ResourceMgr::Clear() {
     std::lock_guard<std::mutex> lck(resources_mutex_);
     disk_resources_.clear();
+    cpu_resources_.clear();
+    gpu_resources_.clear();
     resources_.clear();
 }
 

cpp/unittest/db/utils.cpp

@@ -123,6 +123,7 @@ DBTest::TearDown() {
     ms::scheduler::JobMgrInst::GetInstance()->Stop();
     ms::scheduler::SchedInst::GetInstance()->Stop();
     ms::scheduler::ResMgrInst::GetInstance()->Stop();
+    ms::scheduler::ResMgrInst::GetInstance()->Clear();
 
     BaseTest::TearDown();