104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
/*
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* Restore.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/RestoreInterface.h"
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#include "fdbclient/NativeAPI.actor.h"
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#include "fdbclient/SystemData.h"
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#include "flow/actorcompiler.h" // This must be the last #include.
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ACTOR Future<Void> restoreWorker(Reference<ClusterConnectionFile> ccf, LocalityData locality) {
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state Database cx = Database::createDatabase(ccf->getFilename(), Database::API_VERSION_LATEST, true, locality);
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state RestoreInterface interf;
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interf.initEndpoints();
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state Optional<RestoreInterface> leaderInterf;
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state Transaction tr(cx);
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loop {
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try {
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Optional<Value> leader = wait(tr.get(restoreLeaderKey));
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if(leader.present()) {
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leaderInterf = BinaryReader::fromStringRef<RestoreInterface>(leader.get(), IncludeVersion());
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break;
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}
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tr.set(restoreLeaderKey, BinaryWriter::toValue(interf, IncludeVersion()));
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wait(tr.commit());
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break;
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} catch( Error &e ) {
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wait( tr.onError(e) );
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}
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}
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//we are not the leader, so put our interface in the agent list
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if(leaderInterf.present()) {
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loop {
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try {
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tr.set(restoreWorkerKeyFor(interf.id()), BinaryWriter::toValue(interf, IncludeVersion()));
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wait(tr.commit());
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break;
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} catch( Error &e ) {
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wait( tr.onError(e) );
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}
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}
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loop {
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choose {
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when(TestRequest req = waitNext(interf.test.getFuture())) {
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printf("Got Request: %d\n", req.testData);
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req.reply.send(TestReply(req.testData + 1));
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}
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}
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}
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}
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//we are the leader
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wait( delay(5.0) );
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state vector<RestoreInterface> agents;
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loop {
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try {
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Standalone<RangeResultRef> agentValues = wait(tr.getRange(restoreWorkersKeys, CLIENT_KNOBS->TOO_MANY));
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ASSERT(!agentValues.more);
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if(agentValues.size()) {
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for(auto& it : agentValues) {
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agents.push_back(BinaryReader::fromStringRef<RestoreInterface>(it.value, IncludeVersion()));
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}
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break;
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}
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wait( delay(5.0) );
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} catch( Error &e ) {
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wait( tr.onError(e) );
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}
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}
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ASSERT(agents.size() > 0);
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state int testData = 0;
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loop {
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wait(delay(1.0));
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printf("Sending Request: %d\n", testData);
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std::vector<Future<TestReply>> replies;
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for(auto& it : agents) {
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replies.push_back( it.test.getReply(TestRequest(testData)) );
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}
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std::vector<TestReply> reps = wait( getAll(replies ));
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testData = reps[0].replyData;
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}
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}
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