Ingest sst files rather than their keyvalue content.

bindings/c/CMakeLists.txt

@@ -205,7 +205,8 @@ if(NOT WIN32)
     add_executable(fdb_c_client_config_tester test/client_config_tester.cpp)
   endif()
 
-  target_link_libraries(fdb_c_performance_test PRIVATE fdb_c Threads::Threads)
+  set_target_properties(fdb_c_performance_test PROPERTIES LINKER_LANGUAGE CXX)
+  target_link_libraries(fdb_c_performance_test PRIVATE fdb_c Threads::Threads stdc++)
   target_link_libraries(fdb_c_ryw_benchmark PRIVATE fdb_c Threads::Threads)
   target_link_libraries(fdb_c_txn_size_test PRIVATE fdb_c Threads::Threads)
   target_link_libraries(fdb_c_client_memory_test PRIVATE fdb_c Threads::Threads)

fdbclient/ServerKnobs.cpp

@@ -619,7 +619,7 @@ void ServerKnobs::initialize(Randomize randomize, ClientKnobs* clientKnobs, IsSi
 	init( ROCKSDB_MEMTABLE_PROTECTION_BYTES_PER_KEY,               0 ); if ( randomize && BUGGIFY ) ROCKSDB_MEMTABLE_PROTECTION_BYTES_PER_KEY = 8; // Default: 0 (disabled). Supported values: 0, 1, 2, 4, 8.
 	// Block cache key-value checksum. Checksum is validated during read, so has non-trivial impact on read performance.
 	init( ROCKSDB_BLOCK_PROTECTION_BYTES_PER_KEY,                  0 ); if ( randomize && BUGGIFY ) ROCKSDB_BLOCK_PROTECTION_BYTES_PER_KEY = 8; // Default: 0 (disabled). Supported values: 0, 1, 2, 4, 8.
-	init( ROCKSDB_ENABLE_NONDETERMINISM,                       false );
+	init( ROCKSDB_ENABLE_NONDETERMINISM,                      false );
 	init( SHARDED_ROCKSDB_ALLOW_WRITE_STALL_ON_FLUSH,          false );	
 	init( SHARDED_ROCKSDB_VALIDATE_MAPPING_RATIO,               0.01 ); if (isSimulated) SHARDED_ROCKSDB_VALIDATE_MAPPING_RATIO = deterministicRandom()->random01();
 	init( SHARD_METADATA_SCAN_BYTES_LIMIT,                  10485760 ); // 10MB
@@ -1410,4 +1410,9 @@ void ServerKnobs::initialize(Randomize randomize, ClientKnobs* clientKnobs, IsSi
 		    (5.0 * VERSIONS_PER_SECOND);
 		clientKnobs->INIT_MID_SHARD_BYTES = MIN_SHARD_BYTES;
 	}
+
+	init(BULK_LOAD_USE_SST_INGEST, true); // Enable SST ingestion by default
+	if (isSimulated) {
+		BULK_LOAD_USE_SST_INGEST = deterministicRandom()->coinflip();
+	}
 }

fdbclient/include/fdbclient/IKeyValueStore.actor.h

@@ -62,6 +62,8 @@ class IKeyValueStore : public IClosable {
 	// Returns true if the KV store supports shards, i.e., implements addRange(), removeRange(), and
 	// persistRangeMapping().
 	virtual bool shardAware() const { return false; }
+	// Returns true if the store supports external SST file ingestion.
+	virtual bool supportsSstIngestion() const { return false; }
 	virtual void set(KeyValueRef keyValue, const Arena* arena = nullptr) = 0;
 	virtual void clear(KeyRangeRef range, const Arena* arena = nullptr) = 0;
 	virtual Future<Void> canCommit() { return Void(); }
@@ -134,6 +136,9 @@ class IKeyValueStore : public IClosable {
 	// Delete a checkpoint.
 	virtual Future<Void> deleteCheckpoint(const CheckpointMetaData& checkpoint) { throw not_implemented(); }
 
+	// Compact a range of keys in the store
+	virtual Future<Void> compactRange(KeyRangeRef range) { throw not_implemented(); }
+
 	/*
 	Concurrency contract
 	    Causal consistency:
@@ -157,6 +162,13 @@ class IKeyValueStore : public IClosable {
 	// Obtain the encryption mode of the storage. The encryption mode needs to match the encryption mode of the cluster.
 	virtual Future<EncryptionAtRestMode> encryptionMode() = 0;
 
+	// the files in localFileSets.
+	// Throws an error if the store does not support SST ingestion or if ingestion fails.
+	// It is the responsibility of the caller to ensure the directory exists and the fileSetMap is valid.
+	virtual Future<Void> ingestSSTFiles(std::shared_ptr<BulkLoadFileSetKeyMap> localFileSets) {
+		throw not_implemented();
+	}
+
 protected:
 	virtual ~IKeyValueStore() {}
 };

fdbclient/include/fdbclient/ServerKnobs.h

@@ -1456,6 +1456,8 @@ class SWIFT_CXX_IMMORTAL_SINGLETON_TYPE ServerKnobs : public KnobsImpl<ServerKno
 	// Swift: Enable the Swift runtime hooks and use Swift implementations where possible
 	bool FLOW_WITH_SWIFT;
 
+	bool BULK_LOAD_USE_SST_INGEST; // Enable direct SST file ingestion for RocksDB storage engines
+
 	ServerKnobs(Randomize, ClientKnobs*, IsSimulated);
 	void initialize(Randomize, ClientKnobs*, IsSimulated);
 };

fdbclient/tests/fdb_cluster_fixture.sh

@@ -58,7 +58,7 @@ function start_fdb_cluster {
       "${local_build_dir}" \
       --knobs "${knobs}" \
       --stateless_count 1 --replication_count 1 --logs_count 1 \
-      --storage_count "${ss_count}" --storage_type ssd \
+      --storage_count "${ss_count}" --storage_type ssd-rocksdb-v1 \
       --dump_pids on \
       > >(tee "${output}") \
       2> >(tee "${output}" >&2)

fdbserver/KeyValueStoreRocksDB.actor.cpp

@@ -61,6 +61,7 @@
 #include <memory>
 #include <tuple>
 #include <vector>
+#include <fstream>
 
 #endif // WITH_ROCKSDB
 
@@ -1318,6 +1319,79 @@ struct RocksDBKeyValueStore : IKeyValueStore {
 
 		void init() override {}
 
+		struct IngestSSTFilesAction : TypedAction<Writer, IngestSSTFilesAction> {
+			IngestSSTFilesAction(std::shared_ptr<BulkLoadFileSetKeyMap> localFileSets) : localFileSets(localFileSets) {}
+
+			double getTimeEstimate() const override { return SERVER_KNOBS->COMMIT_TIME_ESTIMATE; }
+
+			std::shared_ptr<BulkLoadFileSetKeyMap> localFileSets;
+			ThreadReturnPromise<Void> done;
+		};
+
+		void action(IngestSSTFilesAction& a) {
+			// Create a list of SST files to ingest
+			std::vector<std::string> sstFiles;
+			for (const auto& [range, fileSet] : *a.localFileSets) {
+				if (fileSet.hasDataFile()) {
+					sstFiles.push_back(fileSet.getDataFileFullPath());
+				}
+			}
+
+			if (sstFiles.empty()) {
+				TraceEvent(SevInfo, "RocksDBIngestSSTFilesNoFiles", id);
+				a.done.send(Void()); // Nothing to ingest
+				return;
+			}
+
+			// Configure ingestion options
+			rocksdb::IngestExternalFileOptions options;
+			options.move_files = true;
+			options.verify_checksums_before_ingest = true;
+
+			// Ingest the SST files
+			// The default column family parameter is necessary here; w/o it the ingested keyvalues are unreadable
+			rocksdb::Status status = db->IngestExternalFile(cf, sstFiles, options);
+
+			if (!status.ok()) {
+				logRocksDBError(id, status, "IngestSSTFiles");
+				a.done.sendError(statusToError(status));
+				return;
+			}
+
+			a.done.send(Void());
+		}
+
+		struct CompactRangeAction : TypedAction<Writer, CompactRangeAction> {
+			CompactRangeAction(KeyRangeRef range) : range(range) {}
+
+			double getTimeEstimate() const override { return SERVER_KNOBS->COMMIT_TIME_ESTIMATE; }
+
+			const KeyRange range;
+			ThreadReturnPromise<Void> done;
+		};
+
+		void action(CompactRangeAction& a) {
+			// Configure compaction options
+			rocksdb::CompactRangeOptions options;
+			// Force RocksDB to rewrite file to last level
+			options.bottommost_level_compaction = rocksdb::BottommostLevelCompaction::kForceOptimized;
+
+			// Convert key range to slices
+			auto begin = toSlice(a.range.begin);
+			auto end = toSlice(a.range.end);
+
+			// Perform the compaction
+			rocksdb::Status status = db->CompactRange(options, cf, &begin, &end);
+
+			if (!status.ok()) {
+				logRocksDBError(id, status, "CompactRange");
+				a.done.sendError(statusToError(status));
+				return;
+			}
+
+			a.done.send(Void());
+		}
+
 		struct OpenAction : TypedAction<Writer, OpenAction> {
 			std::string path;
 			ThreadReturnPromise<Void> done;
@@ -2141,6 +2215,7 @@ struct RocksDBKeyValueStore : IKeyValueStore {
 	void close() override { doClose(this, false); }
 
 	KeyValueStoreType getType() const override { return KeyValueStoreType(KeyValueStoreType::SSD_ROCKSDB_V1); }
+	bool supportsSstIngestion() const override { return true; }
 
 	Future<Void> init() override {
 		if (openFuture.isValid()) {
@@ -2492,6 +2567,20 @@ struct RocksDBKeyValueStore : IKeyValueStore {
 		return EncryptionAtRestMode(EncryptionAtRestMode::DISABLED);
 	}
 
+	Future<Void> ingestSSTFiles(std::shared_ptr<BulkLoadFileSetKeyMap> localFileSets) override {
+		auto a = new Writer::IngestSSTFilesAction(localFileSets);
+		auto res = a->done.getFuture();
+		writeThread->post(a);
+		return res;
+	}
+
+	Future<Void> compactRange(KeyRangeRef range) override {
+		auto a = new Writer::CompactRangeAction(range);
+		auto res = a->done.getFuture();
+		writeThread->post(a);
+		return res;
+	}
+
 	DB db = nullptr;
 	std::shared_ptr<SharedRocksDBState> sharedState;
 	std::shared_ptr<PerfContextMetrics> perfContextMetrics;
@@ -2963,6 +3052,54 @@ TEST_CASE("noSim/RocksDB/RangeClear") {
 	wait(closed);
 	return Void();
 }
-} // namespace
 
+TEST_CASE("noSim/fdbserver/KeyValueStoreRocksDB/IngestSSTFileVisibility") {
+	state std::string testDir = "test_ingest_sst_visibility";
+	state UID testStoreID = deterministicRandom()->randomUniqueID();
+	state RocksDBKeyValueStore* kvStore = new RocksDBKeyValueStore(testDir, testStoreID);
+
+	// Initialize the store
+	wait(kvStore->init());
+
+	// Create an SST file
+	state std::string sstFilename = "test.sst"; // Base filename
+	state std::string sstFileFullPath = joinPath(testDir, sstFilename); // Full path for writer
+	rocksdb::SstFileWriter sstWriter(rocksdb::EnvOptions(), kvStore->sharedState->getOptions());
+	ASSERT(sstWriter.Open(sstFileFullPath).ok()); // Use full path here
+	ASSERT(sstWriter.Put("test_key", "test_value").ok());
+	ASSERT(sstWriter.Finish().ok());
+
+	// Create and populate the file set map (which is a vector)
+	state std::shared_ptr<BulkLoadFileSetKeyMap> fileSetMap = std::make_shared<BulkLoadFileSetKeyMap>();
+	state std::string dummyManifestFile = "dummy_manifest.txt"; // Dummy filename for validation
+
+	// Create the BulkLoadFileSet using its constructor.
+	// Pass the test directory, dummy manifest, and the base SST filename.
+	BulkLoadFileSet fileSet(testDir, // rootPath
+	                        /*relativePath=*/"",
+	                        dummyManifestFile, // manifestFileName
+	                        sstFilename, // dataFileName (use base name)
+	                        /*byteSampleFileName=*/"",
+	                        BulkLoadChecksum()); // checksum
+
+	fileSetMap->emplace_back(allKeys, fileSet); // Use emplace_back for std::vector
+
+	// Ingest the SST file using the populated map
+	wait(kvStore->ingestSSTFiles(fileSetMap));
+
+	// Verify the key is visible
+	Optional<Value> value = wait(kvStore->readValue("test_key"_sr, Optional<ReadOptions>()));
+	ASSERT(value.present());
+	ASSERT(value.get() == "test_value"_sr);
+
+	// Clean up
+	Future<Void> closed = kvStore->onClosed(); // Get future before dispose
+	kvStore->dispose();
+	wait(closed); // Wait for close completion
+	platform::eraseDirectoryRecursive(testDir);
+
+	return Void();
+}
+
+} // namespace
 #endif // WITH_ROCKSDB