108 lines
4.0 KiB
C++
108 lines
4.0 KiB
C++
/*
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* KillCommand.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 2013-2021 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 "fdbcli/fdbcli.actor.h"
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#include "fdbclient/FDBOptions.g.h"
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#include "fdbclient/IClientApi.h"
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#include "fdbclient/Knobs.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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ACTOR Future<bool> killCommandActor(Reference<IDatabase> db,
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Reference<ITransaction> tr,
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std::vector<StringRef> tokens,
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std::map<Key, std::pair<Value, ClientLeaderRegInterface>>* address_interface) {
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ASSERT(tokens.size() >= 1);
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state bool result = true;
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if (tokens.size() == 1) {
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// initialize worker interfaces
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wait(getWorkerInterfaces(tr, address_interface));
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}
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if (tokens.size() == 1 || tokencmp(tokens[1], "list")) {
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if (address_interface->size() == 0) {
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printf("\nNo addresses can be killed.\n");
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} else if (address_interface->size() == 1) {
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printf("\nThe following address can be killed:\n");
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} else {
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printf("\nThe following %zu addresses can be killed:\n", address_interface->size());
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}
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for (auto it : *address_interface) {
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printf("%s\n", printable(it.first).c_str());
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}
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printf("\n");
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} else if (tokencmp(tokens[1], "all")) {
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state std::map<Key, std::pair<Value, ClientLeaderRegInterface>>::const_iterator it;
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for (it = address_interface->cbegin(); it != address_interface->cend(); it++) {
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int64_t killRequestSent = wait(safeThreadFutureToFuture(db->rebootWorker(it->first, false, 0)));
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if (!killRequestSent) {
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result = false;
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fprintf(stderr, "ERROR: failed to send request to kill process `%s'.\n", it->first.toString().c_str());
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}
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}
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if (address_interface->size() == 0) {
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result = false;
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fprintf(stderr,
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"ERROR: no processes to kill. You must run the `kill’ command before "
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"running `kill all’.\n");
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} else {
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printf("Attempted to kill %zu processes\n", address_interface->size());
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}
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} else {
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state int i;
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for (i = 1; i < tokens.size(); i++) {
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if (!address_interface->count(tokens[i])) {
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fprintf(stderr, "ERROR: process `%s' not recognized.\n", printable(tokens[i]).c_str());
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result = false;
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break;
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}
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}
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if (result) {
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for (i = 1; i < tokens.size(); i++) {
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int64_t killRequestSent = wait(safeThreadFutureToFuture(db->rebootWorker(tokens[i], false, 0)));
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if (!killRequestSent) {
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result = false;
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fprintf(
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stderr, "ERROR: failed to send request to kill process `%s'.\n", tokens[i].toString().c_str());
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}
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}
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printf("Attempted to kill %zu processes\n", tokens.size() - 1);
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}
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}
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return result;
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}
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CommandFactory killFactory(
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"kill",
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CommandHelp(
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"kill all|list|<ADDRESS...>",
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"attempts to kill one or more processes in the cluster",
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"If no addresses are specified, populates the list of processes which can be killed. Processes cannot be "
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"killed before this list has been populated.\n\nIf `all' is specified, attempts to kill all known "
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"processes.\n\nIf `list' is specified, displays all known processes. This is only useful when the database is "
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"unresponsive.\n\nFor each IP:port pair in <ADDRESS ...>, attempt to kill the specified process."));
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} // namespace fdb_cli
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