| /* |
| * 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 "disk_cleaner.h" |
| |
| #include <fmt/core.h> |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <algorithm> |
| |
| #include "common/fs_manager.h" |
| #include "runtime/api_layer1.h" |
| #include "utils/error_code.h" |
| #include "utils/filesystem.h" |
| #include "utils/flags.h" |
| #include "utils/fmt_logging.h" |
| |
| namespace dsn { |
| namespace replication { |
| |
| DSN_DEFINE_uint64( |
| replication, |
| gc_disk_error_replica_interval_seconds, |
| 7 * 24 * 3600 /*7day*/, |
| "Duration of error replica being removed, which is in a directory with '.err' suffixed"); |
| DSN_TAG_VARIABLE(gc_disk_error_replica_interval_seconds, FT_MUTABLE); |
| |
| DSN_DEFINE_uint64( |
| replication, |
| gc_disk_garbage_replica_interval_seconds, |
| 24 * 3600 /*1day*/, |
| "Duration of garbaged replica being removed, which is in a directory with '.gar' suffixed"); |
| DSN_TAG_VARIABLE(gc_disk_garbage_replica_interval_seconds, FT_MUTABLE); |
| |
| DSN_DEFINE_uint64(replication, |
| gc_disk_migration_tmp_replica_interval_seconds, |
| 24 * 3600 /*1day*/, |
| "Duration of disk-migration tmp replica being removed, which is in a directory " |
| "with '.tmp' suffixed"); |
| DSN_TAG_VARIABLE(gc_disk_migration_tmp_replica_interval_seconds, FT_MUTABLE); |
| |
| DSN_DEFINE_uint64(replication, |
| gc_disk_migration_origin_replica_interval_seconds, |
| 7 * 24 * 3600 /*7day*/, |
| "Duration of disk-migration origin replica being removed, which is in a " |
| "directory with '.ori' suffixed"); |
| DSN_TAG_VARIABLE(gc_disk_migration_origin_replica_interval_seconds, FT_MUTABLE); |
| |
| const std::string kFolderSuffixErr = ".err"; |
| const std::string kFolderSuffixGar = ".gar"; |
| const std::string kFolderSuffixBak = ".bak"; |
| const std::string kFolderSuffixOri = ".ori"; |
| const std::string kFolderSuffixTmp = ".tmp"; |
| |
| error_s disk_remove_useless_dirs(const std::vector<std::shared_ptr<dir_node>> &dir_nodes, |
| /*output*/ disk_cleaning_report &report) |
| { |
| std::vector<std::string> sub_list; |
| for (const auto &dn : dir_nodes) { |
| std::vector<std::string> tmp_list; |
| if (!dsn::utils::filesystem::get_subdirectories(dn->full_dir, tmp_list, false)) { |
| LOG_WARNING("gc_disk: failed to get subdirectories in {}", dn->full_dir); |
| return error_s::make(ERR_OBJECT_NOT_FOUND, "failed to get subdirectories"); |
| } |
| sub_list.insert(sub_list.end(), tmp_list.begin(), tmp_list.end()); |
| } |
| for (auto &fpath : sub_list) { |
| auto name = dsn::utils::filesystem::get_file_name(fpath); |
| if (!is_data_dir_removable(name)) { |
| continue; |
| } |
| std::string folder_suffix = name.substr(name.length() - 4); |
| |
| time_t mt; |
| if (!dsn::utils::filesystem::last_write_time(fpath, mt)) { |
| LOG_WARNING("gc_disk: failed to get last write time of {}", fpath); |
| continue; |
| } |
| |
| auto last_write_time = (uint64_t)mt; |
| uint64_t current_time_ms = dsn_now_ms(); |
| uint64_t remove_interval_seconds = current_time_ms / 1000; |
| |
| // don't delete ".bak" directory because it is backed by administrator. |
| if (folder_suffix == kFolderSuffixErr) { |
| report.error_replica_count++; |
| remove_interval_seconds = FLAGS_gc_disk_error_replica_interval_seconds; |
| } else if (folder_suffix == kFolderSuffixGar) { |
| report.garbage_replica_count++; |
| remove_interval_seconds = FLAGS_gc_disk_garbage_replica_interval_seconds; |
| } else if (folder_suffix == kFolderSuffixTmp) { |
| report.disk_migrate_tmp_count++; |
| remove_interval_seconds = FLAGS_gc_disk_migration_tmp_replica_interval_seconds; |
| } else if (folder_suffix == kFolderSuffixOri) { |
| report.disk_migrate_origin_count++; |
| remove_interval_seconds = FLAGS_gc_disk_migration_origin_replica_interval_seconds; |
| } |
| |
| if (last_write_time + remove_interval_seconds <= current_time_ms / 1000) { |
| if (!dsn::utils::filesystem::remove_path(fpath)) { |
| LOG_WARNING("gc_disk: failed to delete directory '{}', time_used_ms = {}", |
| fpath, |
| dsn_now_ms() - current_time_ms); |
| } else { |
| LOG_WARNING("gc_disk: replica_dir_op succeed to delete directory '{}'" |
| ", time_used_ms = {}", |
| fpath, |
| dsn_now_ms() - current_time_ms); |
| report.remove_dir_count++; |
| } |
| } else { |
| LOG_INFO("gc_disk: reserve directory '{}', wait_seconds = {}", |
| fpath, |
| last_write_time + remove_interval_seconds - current_time_ms / 1000); |
| } |
| } |
| return error_s::ok(); |
| } |
| |
| void move_to_err_path(const std::string &path, const std::string &log_prefix) |
| { |
| const std::string new_path = fmt::format("{}.{}{}", path, dsn_now_us(), kFolderSuffixErr); |
| CHECK(dsn::utils::filesystem::rename_path(path, new_path), |
| "{}: failed to move directory from '{}' to '{}'", |
| log_prefix, |
| path, |
| new_path); |
| LOG_WARNING("{}: succeed to move directory from '{}' to '{}'", log_prefix, path, new_path); |
| } |
| } // namespace replication |
| } // namespace dsn |