122 lines
4.2 KiB
C++
122 lines
4.2 KiB
C++
/*
|
|
* ConsistencyScanCommand.actor.cpp
|
|
*
|
|
* This source file is part of the FoundationDB open source project
|
|
*
|
|
* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "fdbcli/fdbcli.actor.h"
|
|
|
|
#include "fdbclient/FDBOptions.g.h"
|
|
#include "fdbclient/IClientApi.h"
|
|
|
|
#include "flow/Arena.h"
|
|
#include "flow/FastRef.h"
|
|
#include "flow/ThreadHelper.actor.h"
|
|
#include "fdbclient/ConsistencyScanInterface.h"
|
|
#include "flow/actorcompiler.h" // This must be the last #include.
|
|
|
|
namespace fdb_cli {
|
|
|
|
ACTOR Future<bool> consistencyScanCommandActor(Database db, std::vector<StringRef> tokens) {
|
|
state Reference<ReadYourWritesTransaction> tr = makeReference<ReadYourWritesTransaction>(db);
|
|
// Here we do not proceed in a try-catch loop since the transaction is always supposed to succeed.
|
|
// If not, the outer loop catch block(fdbcli.actor.cpp) will handle the error and print out the error message
|
|
state int usageError = 0;
|
|
state ConsistencyScanInfo csInfo = ConsistencyScanInfo();
|
|
tr->setOption(FDBTransactionOptions::SPECIAL_KEY_SPACE_ENABLE_WRITES);
|
|
tr->setOption(FDBTransactionOptions::PRIORITY_SYSTEM_IMMEDIATE);
|
|
|
|
// Get the exisiting consistencyScanInfo object if present
|
|
state Optional<Value> consistencyScanInfo = wait(ConsistencyScanInfo::getInfo(tr));
|
|
wait(tr->commit());
|
|
if (consistencyScanInfo.present())
|
|
csInfo = ObjectReader::fromStringRef<ConsistencyScanInfo>(consistencyScanInfo.get(), IncludeVersion());
|
|
tr->reset();
|
|
|
|
if (tokens.size() == 1) {
|
|
printf("Consistency Scan Info: %s\n", csInfo.toString().c_str());
|
|
} else if ((tokens.size() == 2) && tokencmp(tokens[1], "off")) {
|
|
csInfo.consistency_scan_enabled = false;
|
|
wait(ConsistencyScanInfo::setInfo(tr, csInfo));
|
|
wait(tr->commit());
|
|
} else if ((tokencmp(tokens[1], "on") && tokens.size() > 2)) {
|
|
csInfo.consistency_scan_enabled = true;
|
|
state std::vector<StringRef>::iterator t;
|
|
for (t = tokens.begin() + 2; t != tokens.end(); ++t) {
|
|
if (tokencmp(t->toString(), "restart")) {
|
|
if (++t != tokens.end()) {
|
|
if (tokencmp(t->toString(), "0")) {
|
|
csInfo.restart = false;
|
|
} else if (tokencmp(t->toString(), "1")) {
|
|
csInfo.restart = true;
|
|
} else {
|
|
usageError = 1;
|
|
}
|
|
} else {
|
|
usageError = 1;
|
|
}
|
|
} else if (tokencmp(t->toString(), "maxRate")) {
|
|
if (++t != tokens.end()) {
|
|
char* end;
|
|
csInfo.max_rate = std::strtod(t->toString().data(), &end);
|
|
if (!std::isspace(*end) && (*end != '\0')) {
|
|
fprintf(stderr, "ERROR: %s failed to parse.\n", t->toString().c_str());
|
|
return false;
|
|
}
|
|
} else {
|
|
usageError = 1;
|
|
}
|
|
} else if (tokencmp(t->toString(), "targetInterval")) {
|
|
if (++t != tokens.end()) {
|
|
char* end;
|
|
csInfo.target_interval = std::strtod(t->toString().data(), &end);
|
|
if (!std::isspace(*end) && (*end != '\0')) {
|
|
fprintf(stderr, "ERROR: %s failed to parse.\n", t->toString().c_str());
|
|
return false;
|
|
}
|
|
} else {
|
|
usageError = 1;
|
|
}
|
|
} else {
|
|
usageError = 1;
|
|
}
|
|
}
|
|
|
|
if (!usageError) {
|
|
wait(ConsistencyScanInfo::setInfo(tr, csInfo));
|
|
wait(tr->commit());
|
|
}
|
|
} else {
|
|
usageError = 1;
|
|
}
|
|
|
|
if (usageError) {
|
|
printUsage(tokens[0]);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
CommandFactory consistencyScanFactory(
|
|
"consistencyscan",
|
|
CommandHelp("consistencyscan <on|off> <restart 0|1> <maxRate val> <targetInterval val>",
|
|
"enables or disables consistency scan",
|
|
"Calling this command with `on' enables the consistency scan process to run the scan with given "
|
|
"arguments and `off' will halt the scan. "
|
|
"Calling this command with no arguments will display if consistency scan is currently enabled.\n"));
|
|
|
|
} // namespace fdb_cli
|