| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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 <algorithm> |
| #include <cerrno> |
| #include <fstream> // IWYU pragma: keep |
| #include <functional> |
| #include <memory> |
| #include <string> |
| #include <unordered_map> |
| #include <utility> |
| #include <vector> |
| |
| #include <gflags/gflags_declare.h> |
| |
| #include "kudu/gutil/strings/substitute.h" |
| #include "kudu/tools/diagnostics_log_parser.h" |
| #include "kudu/tools/tool_action.h" |
| #include "kudu/util/errno.h" |
| #include "kudu/util/status.h" |
| |
| DECLARE_int64(timeout_ms); |
| DECLARE_string(format); |
| |
| using std::ifstream; |
| using std::string; |
| using std::unique_ptr; |
| using std::unordered_map; |
| using std::vector; |
| using strings::Substitute; |
| |
| namespace kudu { |
| namespace tools { |
| |
| namespace { |
| |
| constexpr const char* const kLogPathArg = "path"; |
| constexpr const char* const kLogPathArgDesc = |
| "Path(s) to log file(s) to parse, separated by a whitespace, if many"; |
| |
| Status ParseStacksFromPath(const string& path) { |
| errno = 0; |
| ifstream in(path); |
| if (!in.is_open()) { |
| return Status::IOError(ErrnoToString(errno)); |
| } |
| StackDumpingLogVisitor dlv; |
| LogParser lp(&dlv); |
| string line; |
| int line_number = 0; |
| while (std::getline(in, line)) { |
| line_number++; |
| RETURN_NOT_OK_PREPEND(lp.ParseLine(std::move(line)), |
| Substitute("at line $0", line_number)); |
| } |
| |
| return Status::OK(); |
| } |
| |
| Status ParseStacks(const RunnerContext& context) { |
| vector<string> paths = context.variadic_args; |
| // The file names are such that lexicographic sorting reflects |
| // timestamp-based sorting. |
| std::sort(paths.begin(), paths.end()); |
| for (const auto& path : paths) { |
| RETURN_NOT_OK_PREPEND(ParseStacksFromPath(path), |
| Substitute("failed to parse stacks from $0", path)); |
| } |
| return Status::OK(); |
| } |
| |
| } // anonymous namespace |
| |
| unique_ptr<Mode> BuildDiagnoseMode() { |
| unique_ptr<Action> parse_stacks = |
| ActionBuilder("parse_stacks", &ParseStacks) |
| .Description("Parse sampled stack traces out of a diagnostics log") |
| .AddRequiredVariadicParameter({ kLogPathArg, kLogPathArgDesc }) |
| .Build(); |
| |
| return ModeBuilder("diagnose") |
| .Description("Diagnostic tools for Kudu servers and clusters") |
| .AddAction(std::move(parse_stacks)) |
| .Build(); |
| } |
| |
| } // namespace tools |
| } // namespace kudu |