Merge branch 'branch-0.3.1' into 'branch-0.3.1'

MS-324 Show error when there is not enough gpu memory to build index

See merge request megasearch/milvus!312

Former-commit-id: c020e5d40a7384803e0a35982be44557812774bc

cpp/CHANGELOG.md

@@ -39,10 +39,11 @@ Please mark all change in change log and use the ticket from JIRA.
 - MS-261 - Update faiss version to 1.5.3 and add BUILD_FAISS_WITH_MKL as an option
 - MS-266 - Improve topk reduce time by using multi-threads
 - MS-275 - Avoid sqlite logic error excetion
-- MS-278 - add IndexStatsHelper
+- MS-278 - Add IndexStatsHelper
 - MS-312 - Set openmp thread number by config
-- MS-305 - add CPU core percent metric
-- MS-310 - add milvus CPU utilization ratio and CPU/GPU temperature metrics
+- MS-305 - Add CPU core percent metric
+- MS-310 - Add milvus CPU utilization ratio and CPU/GPU temperature metrics
+- MS-324 - Show error when there is not enough gpu memory to build index
 
 ## New Feature
 - MS-180 - Add new mem manager

cpp/src/db/DBImpl.cpp

@@ -535,11 +535,27 @@ Status DBImpl::BuildIndex(const meta::TableFileSchema& file) {
         }
 
         //step 3: build index
+        std::shared_ptr<ExecutionEngine> index;
+
+        try {
             auto start_time = METRICS_NOW_TIME;
-        auto index = to_index->BuildIndex(table_file.location_);
+            index = to_index->BuildIndex(table_file.location_);
             auto end_time = METRICS_NOW_TIME;
             auto total_time = METRICS_MICROSECONDS(start_time, end_time);
             server::Metrics::GetInstance().BuildIndexDurationSecondsHistogramObserve(total_time);
+        } catch (std::exception& ex) {
+            //typical error: out of gpu memory
+            std::string msg = "BuildIndex encounter exception" + std::string(ex.what());
+            ENGINE_LOG_ERROR << msg;
+
+            table_file.file_type_ = meta::TableFileSchema::TO_DELETE;
+            status = meta_ptr_->UpdateTableFile(table_file);
+            ENGINE_LOG_DEBUG << "Failed to update file to index, mark file: " << table_file.file_id_ << " to to_delete";
+
+            std::cout << "ERROR: failed to build index, index file is too large or gpu memory is not enough" << std::endl;
+
+            return Status::Error(msg);
+        }
 
         //step 4: if table has been deleted, dont save index file
         bool has_table = false;
@@ -550,7 +566,22 @@ Status DBImpl::BuildIndex(const meta::TableFileSchema& file) {
         }
 
         //step 5: save index file
+        try {
             index->Serialize();
+        } catch (std::exception& ex) {
+            //typical error: out of disk space or permition denied
+            std::string msg = "Serialize index encounter exception" + std::string(ex.what());
+            ENGINE_LOG_ERROR << msg;
+
+            table_file.file_type_ = meta::TableFileSchema::TO_DELETE;
+            status = meta_ptr_->UpdateTableFile(table_file);
+            ENGINE_LOG_DEBUG << "Failed to update file to index, mark file: " << table_file.file_id_ << " to to_delete";
+
+            std::cout << "ERROR: failed to persist index file: " << table_file.location_
+                << ", possible out of disk space" << std::endl;
+
+            return Status::Error(msg);
+        }
 
         //step 6: update meta
         table_file.file_type_ = meta::TableFileSchema::INDEX;

cpp/src/db/DBMetaImpl.cpp

@@ -932,7 +932,7 @@ Status DBMetaImpl::CleanUpFilesWithTTL(uint16_t seconds) {
                 table_file.date_ = std::get<3>(file);
 
                 utils::DeleteTableFilePath(options_, table_file);
-                ENGINE_LOG_DEBUG << "Removing file id:" << table_file.id_ << " location:" << table_file.location_;
+                ENGINE_LOG_DEBUG << "Removing file id:" << table_file.file_id_ << " location:" << table_file.location_;
                 ConnectorPtr->remove<TableFileSchema>(table_file.id_);
 
             }