103 lines
3.5 KiB
C++
103 lines
3.5 KiB
C++
/*
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* RestoreWorkerInterface.actor.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "fdbserver/RestoreWorkerInterface.actor.h"
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#include "flow/actorcompiler.h" // must be last include
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const KeyRef restoreLeaderKey = "\xff\x02/restoreLeader"_sr;
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const KeyRangeRef restoreWorkersKeys("\xff\x02/restoreWorkers/"_sr, "\xff\x02/restoreWorkers0"_sr);
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const KeyRef restoreStatusKey = "\xff\x02/restoreStatus/"_sr;
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const KeyRangeRef restoreApplierKeys("\xff\x02/restoreApplier/"_sr, "\xff\x02/restoreApplier0"_sr);
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const KeyRef restoreApplierTxnValue = "1"_sr;
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// restoreApplierKeys: track atomic transaction progress to ensure applying atomicOp exactly once
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// Version and batchIndex are passed in as LittleEndian,
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// they must be converted to BigEndian to maintain ordering in lexical order
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const Key restoreApplierKeyFor(UID const& applierID, int64_t batchIndex, Version version) {
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BinaryWriter wr(Unversioned());
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wr.serializeBytes(restoreApplierKeys.begin);
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wr << applierID << bigEndian64(batchIndex) << bigEndian64(version);
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return wr.toValue();
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}
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std::tuple<UID, int64_t, Version> decodeRestoreApplierKey(ValueRef const& key) {
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BinaryReader rd(key, Unversioned());
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UID applierID;
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int64_t batchIndex;
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Version version;
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rd >> applierID >> batchIndex >> version;
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return std::make_tuple(applierID, bigEndian64(batchIndex), bigEndian64(version));
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}
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// Encode restore worker key for workerID
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const Key restoreWorkerKeyFor(UID const& workerID) {
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BinaryWriter wr(Unversioned());
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wr.serializeBytes(restoreWorkersKeys.begin);
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wr << workerID;
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return wr.toValue();
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}
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// Encode restore agent value
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const Value restoreWorkerInterfaceValue(RestoreWorkerInterface const& cmdInterf) {
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BinaryWriter wr(IncludeVersion(ProtocolVersion::withRestoreWorkerInterfaceValue()));
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wr << cmdInterf;
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return wr.toValue();
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}
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RestoreWorkerInterface decodeRestoreWorkerInterfaceValue(ValueRef const& value) {
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RestoreWorkerInterface s;
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BinaryReader reader(value, IncludeVersion());
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reader >> s;
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return s;
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}
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Value restoreRequestDoneVersionValue(Version readVersion) {
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BinaryWriter wr(IncludeVersion(ProtocolVersion::withRestoreRequestDoneVersionValue()));
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wr << readVersion;
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return wr.toValue();
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}
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Version decodeRestoreRequestDoneVersionValue(ValueRef const& value) {
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Version v;
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BinaryReader reader(value, IncludeVersion());
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reader >> v;
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return v;
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}
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RestoreRequest decodeRestoreRequestValue(ValueRef const& value) {
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RestoreRequest s;
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BinaryReader reader(value, IncludeVersion());
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reader >> s;
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return s;
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}
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// TODO: Register restore performance data to restoreStatus key
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const Key restoreStatusKeyFor(StringRef statusType) {
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BinaryWriter wr(Unversioned());
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wr.serializeBytes(restoreStatusKey);
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wr << statusType;
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return wr.toValue();
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}
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const Value restoreStatusValue(double val) {
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BinaryWriter wr(IncludeVersion(ProtocolVersion::withRestoreStatusValue()));
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wr << StringRef(std::to_string(val));
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return wr.toValue();
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}
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