76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/*
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* AdvanceVersionCommand.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 2013-2022 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 "boost/lexical_cast.hpp"
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#include "fmt/format.h"
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#include "fdbcli/fdbcli.actor.h"
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#include "fdbclient/IClientApi.h"
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#include "flow/Arena.h"
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#include "flow/FastRef.h"
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#include "flow/ThreadHelper.actor.h"
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#include "flow/actorcompiler.h" // This must be the last #include.
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namespace fdb_cli {
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const KeyRef advanceVersionSpecialKey = "\xff\xff/management/min_required_commit_version"_sr;
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ACTOR Future<bool> advanceVersionCommandActor(Reference<IDatabase> db, std::vector<StringRef> tokens) {
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if (tokens.size() != 2) {
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printUsage(tokens[0]);
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return false;
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} else {
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state Version v;
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int n = 0;
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if (sscanf(tokens[1].toString().c_str(), "%" PRId64 "%n", &v, &n) != 1 || n != tokens[1].size()) {
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printUsage(tokens[0]);
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return false;
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} else {
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state Reference<ITransaction> tr = db->createTransaction();
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loop {
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tr->setOption(FDBTransactionOptions::SPECIAL_KEY_SPACE_ENABLE_WRITES);
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try {
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Version rv = wait(safeThreadFutureToFuture(tr->getReadVersion()));
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if (rv <= v) {
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tr->set(advanceVersionSpecialKey, boost::lexical_cast<std::string>(v));
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wait(safeThreadFutureToFuture(tr->commit()));
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} else {
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fmt::print("Current read version is {}\n", rv);
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return true;
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}
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} catch (Error& e) {
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wait(safeThreadFutureToFuture(tr->onError(e)));
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}
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}
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}
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}
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}
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CommandFactory advanceVersionFactory(
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"advanceversion",
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CommandHelp(
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"advanceversion <VERSION>",
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"Force the cluster to recover at the specified version",
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"Forces the cluster to recover at the specified version. If the specified version is larger than the current "
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"version of the cluster, the cluster version is advanced "
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"to the specified version via a forced recovery."));
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} // namespace fdb_cli
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