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13e9cb146ff405112a61cb80293829d91fb3cdae
doris/be/src/olap/tablet_manager.cpp
zhannngchen 13e9cb146f [feature-wip](unique-key-merge-on-write) Add option to enable unique-key-merge-on-write, DSIP-018[5/1] (#10814) 
* Add option in FE

* add opt in be

* some fix

* update

* fix code style

* fix typo

* fix typo

* update

* code format
2022-07-14 12:10:58 +08:00

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// 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 "olap/tablet_manager.h"
#include <gen_cpp/Types_types.h>
#include <rapidjson/document.h>
#include <re2/re2.h>
#include <thrift/protocol/TDebugProtocol.h>
#include <algorithm>
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <filesystem>
#include "env/env.h"
#include "env/env_util.h"
#include "gutil/strings/strcat.h"
#include "olap/base_compaction.h"
#include "olap/cumulative_compaction.h"
#include "olap/data_dir.h"
#include "olap/olap_common.h"
#include "olap/push_handler.h"
#include "olap/reader.h"
#include "olap/rowset/rowset_id_generator.h"
#include "olap/schema_change.h"
#include "olap/tablet.h"
#include "olap/tablet_meta.h"
#include "olap/tablet_meta_manager.h"
#include "olap/utils.h"
#include "rapidjson/document.h"
#include "rapidjson/prettywriter.h"
#include "rapidjson/stringbuffer.h"
#include "runtime/thread_context.h"
#include "service/backend_options.h"
#include "util/doris_metrics.h"
#include "util/file_utils.h"
#include "util/histogram.h"
#include "util/path_util.h"
#include "util/pretty_printer.h"
#include "util/scoped_cleanup.h"
#include "util/storage_backend_mgr.h"
#include "util/time.h"
#include "util/trace.h"
using std::list;
using std::map;
using std::set;
using std::string;
using std::vector;
using strings::Substitute;
namespace doris {
DEFINE_GAUGE_METRIC_PROTOTYPE_5ARG(tablet_meta_mem_consumption, MetricUnit::BYTES, "",
mem_consumption, Labels({{"type", "tablet_meta"}}));
TabletManager::TabletManager(int32_t tablet_map_lock_shard_size)
: _mem_tracker(MemTracker::create_tracker(-1, "TabletManager", nullptr,
MemTrackerLevel::OVERVIEW)),
_tablets_shards_size(tablet_map_lock_shard_size),
_tablets_shards_mask(tablet_map_lock_shard_size - 1) {
CHECK_GT(_tablets_shards_size, 0);
CHECK_EQ(_tablets_shards_size & _tablets_shards_mask, 0);
_tablets_shards.resize(_tablets_shards_size);
REGISTER_HOOK_METRIC(tablet_meta_mem_consumption,
[this]() { return _mem_tracker->consumption(); });
}
TabletManager::~TabletManager() {
DEREGISTER_HOOK_METRIC(tablet_meta_mem_consumption);
}
Status TabletManager::_add_tablet_unlocked(TTabletId tablet_id, const TabletSharedPtr& tablet,
bool update_meta, bool force) {
Status res = Status::OK();
VLOG_NOTICE << "begin to add tablet to TabletManager. "
<< "tablet_id=" << tablet_id << ", force=" << force;
TabletSharedPtr existed_tablet = nullptr;
tablet_map_t& tablet_map = _get_tablet_map(tablet_id);
const auto& iter = tablet_map.find(tablet_id);
if (iter != tablet_map.end()) {
existed_tablet = iter->second;
}
if (existed_tablet == nullptr) {
return _add_tablet_to_map_unlocked(tablet_id, tablet, update_meta, false /*keep_files*/,
false /*drop_old*/);
}
// During restore process, the tablet is exist and snapshot loader will replace the tablet's rowsets
// and then reload the tablet, the tablet's path will the same
if (!force) {
if (existed_tablet->tablet_path() == tablet->tablet_path()) {
LOG(WARNING) << "add the same tablet twice! tablet_id=" << tablet_id
<< ", tablet_path=" << tablet->tablet_path();
return Status::OLAPInternalError(OLAP_ERR_ENGINE_INSERT_EXISTS_TABLE);
}
if (existed_tablet->data_dir() == tablet->data_dir()) {
LOG(WARNING) << "add tablet with same data dir twice! tablet_id=" << tablet_id;
return Status::OLAPInternalError(OLAP_ERR_ENGINE_INSERT_EXISTS_TABLE);
}
}
// During storage migration, the tablet is moved to another disk, have to check
// if the new tablet's rowset version is larger than the old one to prvent losting data during
// migration
int64_t old_time, new_time;
int32_t old_version, new_version;
{
std::shared_lock rdlock(existed_tablet->get_header_lock());
const RowsetSharedPtr old_rowset = existed_tablet->rowset_with_max_version();
const RowsetSharedPtr new_rowset = tablet->rowset_with_max_version();
// If new tablet is empty, it is a newly created schema change tablet.
// the old tablet is dropped before add tablet. it should not exist old tablet
if (new_rowset == nullptr) {
// it seems useless to call unlock and return here.
// it could prevent error when log level is changed in the future.
LOG(FATAL) << "new tablet is empty and old tablet exists. it should not happen."
<< " tablet_id=" << tablet_id;
return Status::OLAPInternalError(OLAP_ERR_ENGINE_INSERT_EXISTS_TABLE);
}
old_time = old_rowset == nullptr ? -1 : old_rowset->creation_time();
new_time = new_rowset->creation_time();
old_version = old_rowset == nullptr ? -1 : old_rowset->end_version();
new_version = new_rowset->end_version();
}
// In restore process, we replace all origin files in tablet dir with
// the downloaded snapshot files. Then we try to reload tablet header.
// force == true means we forcibly replace the Tablet in tablet_map
// with the new one. But if we do so, the files in the tablet dir will be
// dropped when the origin Tablet deconstruct.
// So we set keep_files == true to not delete files when the
// origin Tablet deconstruct.
// During restore process, snapshot loader
// replaced the old tablet's rowset with new rowsets, but the tablet path is reused, if drop files
// here, the new rowset's file will also be dropped, so use keep files here
bool keep_files = force ? true : false;
if (force ||
(new_version > old_version || (new_version == old_version && new_time > old_time))) {
// check if new tablet's meta is in store and add new tablet's meta to meta store
res = _add_tablet_to_map_unlocked(tablet_id, tablet, update_meta, keep_files,
true /*drop_old*/);
} else {
res = Status::OLAPInternalError(OLAP_ERR_ENGINE_INSERT_OLD_TABLET);
}
LOG(WARNING) << "add duplicated tablet. force=" << force << ", res=" << res
<< ", tablet_id=" << tablet_id << ", old_version=" << old_version
<< ", new_version=" << new_version << ", old_time=" << old_time
<< ", new_time=" << new_time
<< ", old_tablet_path=" << existed_tablet->tablet_path()
<< ", new_tablet_path=" << tablet->tablet_path();
return res;
}
Status TabletManager::_add_tablet_to_map_unlocked(TTabletId tablet_id,
const TabletSharedPtr& tablet, bool update_meta,
bool keep_files, bool drop_old) {
// check if new tablet's meta is in store and add new tablet's meta to meta store
Status res = Status::OK();
if (update_meta) {
// call tablet save meta in order to valid the meta
tablet->save_meta();
}
if (drop_old) {
// If the new tablet is fresher than the existing one, then replace
// the existing tablet with the new one.
// Use default replica_id to ignore whether replica_id is match when drop tablet.
RETURN_NOT_OK_LOG(_drop_tablet_unlocked(tablet_id, /* replica_id */ 0, keep_files),
strings::Substitute("failed to drop old tablet when add new tablet. "
"tablet_id=$0",
tablet_id));
}
// Register tablet into DataDir, so that we can manage tablet from
// the perspective of root path.
// Example: unregister all tables when a bad disk found.
tablet->register_tablet_into_dir();
tablet_map_t& tablet_map = _get_tablet_map(tablet_id);
tablet_map[tablet_id] = tablet;
_add_tablet_to_partition(tablet);
VLOG_NOTICE << "add tablet to map successfully."
<< " tablet_id=" << tablet_id;
return res;
}
bool TabletManager::check_tablet_id_exist(TTabletId tablet_id) {
std::shared_lock rdlock(_get_tablets_shard_lock(tablet_id));
return _check_tablet_id_exist_unlocked(tablet_id);
}
bool TabletManager::_check_tablet_id_exist_unlocked(TTabletId tablet_id) {
tablet_map_t& tablet_map = _get_tablet_map(tablet_id);
return tablet_map.find(tablet_id) != tablet_map.end();
}
Status TabletManager::create_tablet(const TCreateTabletReq& request, std::vector<DataDir*> stores) {
SCOPED_SWITCH_THREAD_LOCAL_MEM_TRACKER(_mem_tracker);
DorisMetrics::instance()->create_tablet_requests_total->increment(1);
int64_t tablet_id = request.tablet_id;
LOG(INFO) << "begin to create tablet. tablet_id=" << tablet_id;
std::lock_guard<std::shared_mutex> wrlock(_get_tablets_shard_lock(tablet_id));
TRACE("got tablets shard lock");
// Make create_tablet operation to be idempotent:
// 1. Return true if tablet with same tablet_id and schema_hash exist;
// false if tablet with same tablet_id but different schema_hash exist.
// 2. When this is an alter task, if the tablet(both tablet_id and schema_hash are
// same) already exist, then just return true(an duplicate request). But if
// tablet_id exist but with different schema_hash, return an error(report task will
// eventually trigger its deletion).
if (_get_tablet_unlocked(tablet_id) != nullptr) {
LOG(INFO) << "success to create tablet. tablet already exist. tablet_id=" << tablet_id;
return Status::OK();
}
TabletSharedPtr base_tablet = nullptr;
bool is_schema_change = false;
// If the CreateTabletReq has base_tablet_id then it is a alter-tablet request
if (request.__isset.base_tablet_id && request.base_tablet_id > 0) {
is_schema_change = true;
base_tablet = _get_tablet_unlocked(request.base_tablet_id);
if (base_tablet == nullptr) {
LOG(WARNING) << "fail to create tablet(change schema), base tablet does not exist. "
<< "new_tablet_id=" << tablet_id
<< ", base_tablet_id=" << request.base_tablet_id;
DorisMetrics::instance()->create_tablet_requests_failed->increment(1);
return Status::OLAPInternalError(OLAP_ERR_TABLE_CREATE_META_ERROR);
}
// If we are doing schema-change, we should use the same data dir
// TODO(lingbin): A litter trick here, the directory should be determined before
// entering this method
if (request.storage_medium == base_tablet->data_dir()->storage_medium()) {
stores.clear();
stores.push_back(base_tablet->data_dir());
}
}
// set alter type to schema-change. it is useless
TabletSharedPtr tablet =
_internal_create_tablet_unlocked(request, is_schema_change, base_tablet.get(), stores);
if (tablet == nullptr) {
LOG(WARNING) << "fail to create tablet. tablet_id=" << request.tablet_id;
DorisMetrics::instance()->create_tablet_requests_failed->increment(1);
return Status::OLAPInternalError(OLAP_ERR_CE_CMD_PARAMS_ERROR);
}
TRACE("succeed to create tablet");
LOG(INFO) << "success to create tablet. tablet_id=" << tablet_id;
return Status::OK();
}
TabletSharedPtr TabletManager::_internal_create_tablet_unlocked(
const TCreateTabletReq& request, const bool is_schema_change, const Tablet* base_tablet,
const std::vector<DataDir*>& data_dirs) {
// If in schema-change state, base_tablet must also be provided.
// i.e., is_schema_change and base_tablet are either assigned or not assigned
DCHECK((is_schema_change && base_tablet) || (!is_schema_change && !base_tablet));
// NOTE: The existence of tablet_id and schema_hash has already been checked,
// no need check again here.
auto tablet =
_create_tablet_meta_and_dir_unlocked(request, is_schema_change, base_tablet, data_dirs);
if (tablet == nullptr) {
return nullptr;
}
int64_t new_tablet_id = request.tablet_id;
int32_t new_schema_hash = request.tablet_schema.schema_hash;
// should remove the tablet's pending_id no matter create-tablet success or not
DataDir* data_dir = tablet->data_dir();
SCOPED_CLEANUP({ data_dir->remove_pending_ids(StrCat(TABLET_ID_PREFIX, new_tablet_id)); });
// TODO(yiguolei)
// the following code is very difficult to understand because it mixed alter tablet v2
// and alter tablet v1 should remove alter tablet v1 code after v0.12
Status res = Status::OK();
bool is_tablet_added = false;
do {
res = tablet->init();
if (!res.ok()) {
LOG(WARNING) << "tablet init failed. tablet:" << tablet->full_name();
break;
}
// Create init version if this is not a restore mode replica and request.version is set
// bool in_restore_mode = request.__isset.in_restore_mode && request.in_restore_mode;
// if (!in_restore_mode && request.__isset.version) {
// create initial rowset before add it to storage engine could omit many locks
res = tablet->create_initial_rowset(request.version);
if (!res.ok()) {
LOG(WARNING) << "fail to create initial version for tablet. res=" << res;
break;
}
if (is_schema_change) {
// if this is a new alter tablet, has to set its state to not ready
// because schema change handler depends on it to check whether history data
// convert finished
tablet->set_tablet_state(TabletState::TABLET_NOTREADY);
}
// Add tablet to StorageEngine will make it visible to user
// Will persist tablet meta
res = _add_tablet_unlocked(new_tablet_id, tablet, /*update_meta*/ true, false);
if (!res.ok()) {
LOG(WARNING) << "fail to add tablet to StorageEngine. res=" << res;
break;
}
is_tablet_added = true;
// TODO(lingbin): The following logic seems useless, can be removed?
// Because if _add_tablet_unlocked() return OK, we must can get it from map.
TabletSharedPtr tablet_ptr = _get_tablet_unlocked(new_tablet_id);
if (tablet_ptr == nullptr) {
res = Status::OLAPInternalError(OLAP_ERR_TABLE_NOT_FOUND);
LOG(WARNING) << "fail to get tablet. res=" << res;
break;
}
TRACE("add tablet to StorageEngine");
} while (0);
if (res.ok()) {
return tablet;
}
// something is wrong, we need clear environment
if (is_tablet_added) {
Status status = _drop_tablet_unlocked(new_tablet_id, request.replica_id, false);
if (!status.ok()) {
LOG(WARNING) << "fail to drop tablet when create tablet failed. res=" << res;
}
} else {
tablet->delete_all_files();
TabletMetaManager::remove(data_dir, new_tablet_id, new_schema_hash);
}
return nullptr;
}
static string _gen_tablet_dir(const string& dir, int16_t shard_id, int64_t tablet_id) {
string path = dir;
path = path_util::join_path_segments(path, DATA_PREFIX);
path = path_util::join_path_segments(path, std::to_string(shard_id));
path = path_util::join_path_segments(path, std::to_string(tablet_id));
return path;
}
TabletSharedPtr TabletManager::_create_tablet_meta_and_dir_unlocked(
const TCreateTabletReq& request, const bool is_schema_change, const Tablet* base_tablet,
const std::vector<DataDir*>& data_dirs) {
string pending_id = StrCat(TABLET_ID_PREFIX, request.tablet_id);
// Many attempts are made here in the hope that even if a disk fails, it can still continue.
DataDir* last_dir = nullptr;
for (auto& data_dir : data_dirs) {
if (last_dir != nullptr) {
// If last_dir != null, it means the last attempt to create a tablet failed
last_dir->remove_pending_ids(pending_id);
}
last_dir = data_dir;
TabletMetaSharedPtr tablet_meta;
// if create meta failed, do not need to clean dir, because it is only in memory
Status res = _create_tablet_meta_unlocked(request, data_dir, is_schema_change, base_tablet,
&tablet_meta);
if (!res.ok()) {
LOG(WARNING) << "fail to create tablet meta. res=" << res
<< ", root=" << data_dir->path();
continue;
}
string tablet_dir =
_gen_tablet_dir(data_dir->path(), tablet_meta->shard_id(), request.tablet_id);
string schema_hash_dir = path_util::join_path_segments(
tablet_dir, std::to_string(request.tablet_schema.schema_hash));
// Because the tablet is removed asynchronously, so that the dir may still exist when BE
// receive create-tablet request again, For example retried schema-change request
if (FileUtils::check_exist(schema_hash_dir)) {
LOG(WARNING) << "skip this dir because tablet path exist, path=" << schema_hash_dir;
continue;
} else {
data_dir->add_pending_ids(pending_id);
Status st = FileUtils::create_dir(schema_hash_dir);
if (!st.ok()) {
LOG(WARNING) << "create dir fail. path=" << schema_hash_dir
<< " error=" << st.to_string();
continue;
}
}
StorageParamPB storage_param;
Status status =
_get_storage_param(data_dir, tablet_meta->remote_storage_name(), &storage_param);
if (!status.ok()) {
LOG(WARNING) << "fail to _get_storage_param. storage_name: "
<< tablet_meta->remote_storage_name();
return nullptr;
}
TabletSharedPtr new_tablet =
Tablet::create_tablet_from_meta(tablet_meta, storage_param, data_dir);
DCHECK(new_tablet != nullptr);
return new_tablet;
}
return nullptr;
}
Status TabletManager::drop_tablet(TTabletId tablet_id, TReplicaId replica_id, bool keep_files) {
auto& shard = _get_tablets_shard(tablet_id);
std::lock_guard wrlock(shard.lock);
if (shard.tablets_under_clone.count(tablet_id) > 0) {
LOG(INFO) << "tablet " << tablet_id << " is under clone, skip drop task";
return Status::OK();
}
SCOPED_SWITCH_THREAD_LOCAL_MEM_TRACKER(_mem_tracker);
return _drop_tablet_unlocked(tablet_id, replica_id, keep_files);
}
// Drop specified tablet.
Status TabletManager::_drop_tablet_unlocked(TTabletId tablet_id, TReplicaId replica_id,
bool keep_files) {
LOG(INFO) << "begin drop tablet. tablet_id=" << tablet_id << ", replica_id=" << replica_id;
DorisMetrics::instance()->drop_tablet_requests_total->increment(1);
// Fetch tablet which need to be dropped
TabletSharedPtr to_drop_tablet = _get_tablet_unlocked(tablet_id);
if (to_drop_tablet == nullptr) {
LOG(WARNING) << "fail to drop tablet because it does not exist. "
<< "tablet_id=" << tablet_id;
return Status::OK();
}
// We should compare replica id to avoid dropping new cloned tablet.
// Iff request replica id is 0, FE may be an older release, then we drop this tablet as before.
if (to_drop_tablet->replica_id() != replica_id && replica_id != 0) {
LOG(WARNING) << "fail to drop tablet because replica id not match. "
<< "tablet_id=" << tablet_id << ", replica_id=" << to_drop_tablet->replica_id()
<< ", request replica_id=" << replica_id;
return Status::OK();
}
_remove_tablet_from_partition(to_drop_tablet);
tablet_map_t& tablet_map = _get_tablet_map(tablet_id);
tablet_map.erase(tablet_id);
if (!keep_files) {
// drop tablet will update tablet meta, should lock
std::lock_guard<std::shared_mutex> wrlock(to_drop_tablet->get_header_lock());
LOG(INFO) << "set tablet to shutdown state and remove it from memory. "
<< "tablet_id=" << tablet_id << ", tablet_path=" << to_drop_tablet->tablet_path();
// NOTE: has to update tablet here, but must not update tablet meta directly.
// because other thread may hold the tablet object, they may save meta too.
// If update meta directly here, other thread may override the meta
// and the tablet will be loaded at restart time.
// To avoid this exception, we first set the state of the tablet to `SHUTDOWN`.
to_drop_tablet->set_tablet_state(TABLET_SHUTDOWN);
to_drop_tablet->save_meta();
{
std::lock_guard<std::shared_mutex> wrdlock(_shutdown_tablets_lock);
_shutdown_tablets.push_back(to_drop_tablet);
}
}
to_drop_tablet->deregister_tablet_from_dir();
return Status::OK();
}
Status TabletManager::drop_tablets_on_error_root_path(
const std::vector<TabletInfo>& tablet_info_vec) {
SCOPED_SWITCH_THREAD_LOCAL_MEM_TRACKER(_mem_tracker);
Status res = Status::OK();
if (tablet_info_vec.empty()) { // This is a high probability event
return res;
}
std::vector<std::set<size_t>> local_tmp_vector(_tablets_shards_size);
for (size_t idx = 0; idx < tablet_info_vec.size(); ++idx) {
local_tmp_vector[tablet_info_vec[idx].tablet_id & _tablets_shards_mask].insert(idx);
}
for (int32 i = 0; i < _tablets_shards_size; ++i) {
if (local_tmp_vector[i].empty()) {
continue;
}
std::lock_guard<std::shared_mutex> wrlock(_tablets_shards[i].lock);
for (size_t idx : local_tmp_vector[i]) {
const TabletInfo& tablet_info = tablet_info_vec[idx];
TTabletId tablet_id = tablet_info.tablet_id;
VLOG_NOTICE << "drop_tablet begin. tablet_id=" << tablet_id;
TabletSharedPtr dropped_tablet = _get_tablet_unlocked(tablet_id);
if (dropped_tablet == nullptr) {
LOG(WARNING) << "dropping tablet not exist, "
<< " tablet=" << tablet_id;
continue;
} else {
_remove_tablet_from_partition(dropped_tablet);
tablet_map_t& tablet_map = _get_tablet_map(tablet_id);
tablet_map.erase(tablet_id);
}
}
}
return res;
}
TabletSharedPtr TabletManager::get_tablet(TTabletId tablet_id, bool include_deleted, string* err) {
std::shared_lock rdlock(_get_tablets_shard_lock(tablet_id));
return _get_tablet_unlocked(tablet_id, include_deleted, err);
}
TabletSharedPtr TabletManager::_get_tablet_unlocked(TTabletId tablet_id, bool include_deleted,
string* err) {
TabletSharedPtr tablet;
tablet = _get_tablet_unlocked(tablet_id);
if (tablet == nullptr && include_deleted) {
std::shared_lock rdlock(_shutdown_tablets_lock);
for (auto& deleted_tablet : _shutdown_tablets) {
CHECK(deleted_tablet != nullptr) << "deleted tablet is nullptr";
if (deleted_tablet->tablet_id() == tablet_id) {
tablet = deleted_tablet;
break;
}
}
}
if (tablet == nullptr) {
if (err != nullptr) {
*err = "tablet does not exist. " + BackendOptions::get_localhost();
}
return nullptr;
}
if (!tablet->is_used()) {
LOG(WARNING) << "tablet cannot be used. tablet=" << tablet_id;
if (err != nullptr) {
*err = "tablet cannot be used. " + BackendOptions::get_localhost();
}
return nullptr;
}
return tablet;
}
TabletSharedPtr TabletManager::get_tablet(TTabletId tablet_id, TabletUid tablet_uid,
bool include_deleted, string* err) {
std::shared_lock rdlock(_get_tablets_shard_lock(tablet_id));
TabletSharedPtr tablet = _get_tablet_unlocked(tablet_id, include_deleted, err);
if (tablet != nullptr && tablet->tablet_uid() == tablet_uid) {
return tablet;
}
return nullptr;
}
bool TabletManager::get_tablet_id_and_schema_hash_from_path(const string& path,
TTabletId* tablet_id,
TSchemaHash* schema_hash) {
// the path like: /data/14/10080/964828783/
static re2::RE2 normal_re("/data/\\d+/(\\d+)/(\\d+)($|/)");
// match tablet schema hash data path, for example, the path is /data/1/16791/29998
// 1 is shard id , 16791 is tablet id, 29998 is schema hash
if (RE2::PartialMatch(path, normal_re, tablet_id, schema_hash)) {
return true;
}
// If we can't match normal path pattern, this may be a path which is a empty tablet
// directory. Use this pattern to match empty tablet directory. In this case schema_hash
// will be set to zero.
static re2::RE2 empty_tablet_re("/data/\\d+/(\\d+)($|/$)");
if (!RE2::PartialMatch(path, empty_tablet_re, tablet_id)) {
return false;
}
*schema_hash = 0;
return true;
}
bool TabletManager::get_rowset_id_from_path(const string& path, RowsetId* rowset_id) {
// the path like: /data/14/10080/964828783/02000000000000969144d8725cb62765f9af6cd3125d5a91_0.dat
static re2::RE2 re("/data/\\d+/\\d+/\\d+/([A-Fa-f0-9]+)_.*");
string id_str;
bool ret = RE2::PartialMatch(path, re, &id_str);
if (ret) {
rowset_id->init(id_str);
return true;
}
return false;
}
void TabletManager::get_tablet_stat(TTabletStatResult* result) {
std::shared_ptr<std::vector<TTabletStat>> local_cache;
{
std::lock_guard<std::mutex> guard(_tablet_stat_cache_mutex);
local_cache = _tablet_stat_list_cache;
}
result->__set_tablet_stat_list(*local_cache);
}
TabletSharedPtr TabletManager::find_best_tablet_to_compaction(
CompactionType compaction_type, DataDir* data_dir,
const std::unordered_set<TTabletId>& tablet_submitted_compaction, uint32_t* score,
std::shared_ptr<CumulativeCompactionPolicy> cumulative_compaction_policy) {
int64_t now_ms = UnixMillis();
const string& compaction_type_str =
compaction_type == CompactionType::BASE_COMPACTION ? "base" : "cumulative";
double highest_score = 0.0;
uint32_t compaction_score = 0;
double tablet_scan_frequency = 0.0;
TabletSharedPtr best_tablet;
for (const auto& tablets_shard : _tablets_shards) {
std::shared_lock rdlock(tablets_shard.lock);
for (const auto& tablet_map : tablets_shard.tablet_map) {
const TabletSharedPtr& tablet_ptr = tablet_map.second;
if (!tablet_ptr->can_do_compaction(data_dir->path_hash(), compaction_type)) {
continue;
}
auto search = tablet_submitted_compaction.find(tablet_ptr->tablet_id());
if (search != tablet_submitted_compaction.end()) {
continue;
}
int64_t last_failure_ms = tablet_ptr->last_cumu_compaction_failure_time();
if (compaction_type == CompactionType::BASE_COMPACTION) {
last_failure_ms = tablet_ptr->last_base_compaction_failure_time();
}
if (now_ms - last_failure_ms <= config::min_compaction_failure_interval_sec * 1000) {
VLOG_DEBUG << "Too often to check compaction, skip it. "
<< "compaction_type=" << compaction_type_str
<< ", last_failure_time_ms=" << last_failure_ms
<< ", tablet_id=" << tablet_ptr->tablet_id();
continue;
}
if (compaction_type == CompactionType::BASE_COMPACTION) {
std::unique_lock<std::mutex> lock(tablet_ptr->get_base_compaction_lock(),
std::try_to_lock);
if (!lock.owns_lock()) {
LOG(INFO) << "can not get base lock: " << tablet_ptr->tablet_id();
continue;
}
} else {
std::unique_lock<std::mutex> lock(tablet_ptr->get_cumulative_compaction_lock(),
std::try_to_lock);
if (!lock.owns_lock()) {
LOG(INFO) << "can not get cumu lock: " << tablet_ptr->tablet_id();
continue;
}
}
uint32_t current_compaction_score = tablet_ptr->calc_compaction_score(
compaction_type, cumulative_compaction_policy);
double scan_frequency = 0.0;
if (config::compaction_tablet_scan_frequency_factor != 0) {
scan_frequency = tablet_ptr->calculate_scan_frequency();
}
double tablet_score =
config::compaction_tablet_scan_frequency_factor * scan_frequency +
config::compaction_tablet_compaction_score_factor * current_compaction_score;
if (tablet_score > highest_score) {
highest_score = tablet_score;
compaction_score = current_compaction_score;
tablet_scan_frequency = scan_frequency;
best_tablet = tablet_ptr;
}
}
}
if (best_tablet != nullptr) {
VLOG_CRITICAL << "Found the best tablet for compaction. "
<< "compaction_type=" << compaction_type_str
<< ", tablet_id=" << best_tablet->tablet_id() << ", path=" << data_dir->path()
<< ", compaction_score=" << compaction_score
<< ", tablet_scan_frequency=" << tablet_scan_frequency
<< ", highest_score=" << highest_score;
*score = compaction_score;
}
return best_tablet;
}
Status TabletManager::load_tablet_from_meta(DataDir* data_dir, TTabletId tablet_id,
TSchemaHash schema_hash, const string& meta_binary,
bool update_meta, bool force, bool restore,
bool check_path) {
SCOPED_SWITCH_THREAD_LOCAL_MEM_TRACKER(_mem_tracker);
TabletMetaSharedPtr tablet_meta(new TabletMeta());
Status status = tablet_meta->deserialize(meta_binary);
if (!status.ok()) {
LOG(WARNING) << "fail to load tablet because can not parse meta_binary string. "
<< "tablet_id=" << tablet_id << ", schema_hash=" << schema_hash
<< ", path=" << data_dir->path();
return Status::OLAPInternalError(OLAP_ERR_HEADER_PB_PARSE_FAILED);
}
tablet_meta->init_rs_metas_fs(data_dir->fs());
// check if tablet meta is valid
if (tablet_meta->tablet_id() != tablet_id || tablet_meta->schema_hash() != schema_hash) {
LOG(WARNING) << "fail to load tablet because meet invalid tablet meta. "
<< "trying to load tablet(tablet_id=" << tablet_id
<< ", schema_hash=" << schema_hash << ")"
<< ", but meet tablet=" << tablet_meta->full_name()
<< ", path=" << data_dir->path();
return Status::OLAPInternalError(OLAP_ERR_HEADER_PB_PARSE_FAILED);
}
if (tablet_meta->tablet_uid().hi == 0 && tablet_meta->tablet_uid().lo == 0) {
LOG(WARNING) << "fail to load tablet because its uid == 0. "
<< "tablet=" << tablet_meta->full_name() << ", path=" << data_dir->path();
return Status::OLAPInternalError(OLAP_ERR_HEADER_PB_PARSE_FAILED);
}
if (restore) {
// we're restoring tablet from trash, tablet state should be changed from shutdown back to running
tablet_meta->set_tablet_state(TABLET_RUNNING);
}
StorageParamPB storage_param;
RETURN_NOT_OK_LOG(
_get_storage_param(data_dir, tablet_meta->remote_storage_name(), &storage_param),
"fail to _get_storage_param. storage_name: " + tablet_meta->remote_storage_name());
TabletSharedPtr tablet = Tablet::create_tablet_from_meta(tablet_meta, storage_param, data_dir);
if (tablet == nullptr) {
LOG(WARNING) << "fail to load tablet. tablet_id=" << tablet_id
<< ", schema_hash:" << schema_hash;
return Status::OLAPInternalError(OLAP_ERR_TABLE_CREATE_FROM_HEADER_ERROR);
}
// NOTE: method load_tablet_from_meta could be called by two cases as below
// case 1: BE start;
// case 2: Clone Task/Restore
// For case 1 doesn't need path check because BE is just starting and not ready,
// just check tablet meta status to judge whether tablet is delete is enough.
// For case 2, If a tablet has just been copied to local BE,
// it may be cleared by gc-thread(see perform_path_gc_by_tablet) because the tablet meta may not be loaded to memory.
// So clone task should check path and then failed and retry in this case.
if (check_path && !Env::Default()->path_exists(tablet->tablet_path()).ok()) {
LOG(WARNING) << "tablet path not exists, create tablet failed, path="
<< tablet->tablet_path();
return Status::OLAPInternalError(OLAP_ERR_TABLE_ALREADY_DELETED_ERROR);
}
if (tablet_meta->tablet_state() == TABLET_SHUTDOWN) {
LOG(INFO) << "fail to load tablet because it is to be deleted. tablet_id=" << tablet_id
<< " schema_hash=" << schema_hash << ", path=" << data_dir->path();
{
std::lock_guard<std::shared_mutex> shutdown_tablets_wrlock(_shutdown_tablets_lock);
_shutdown_tablets.push_back(tablet);
}
return Status::OLAPInternalError(OLAP_ERR_TABLE_ALREADY_DELETED_ERROR);
}
// NOTE: We do not check tablet's initial version here, because if BE restarts when
// one tablet is doing schema-change, we may meet empty tablet.
if (tablet->max_version().first == -1 && tablet->tablet_state() == TABLET_RUNNING) {
LOG(WARNING) << "fail to load tablet. it is in running state but without delta. "
<< "tablet=" << tablet->full_name() << ", path=" << data_dir->path();
// tablet state is invalid, drop tablet
return Status::OLAPInternalError(OLAP_ERR_TABLE_INDEX_VALIDATE_ERROR);
}
RETURN_NOT_OK_LOG(tablet->init(),
strings::Substitute("tablet init failed. tablet=$0", tablet->full_name()));
std::lock_guard<std::shared_mutex> wrlock(_get_tablets_shard_lock(tablet_id));
RETURN_NOT_OK_LOG(_add_tablet_unlocked(tablet_id, tablet, update_meta, force),
strings::Substitute("fail to add tablet. tablet=$0", tablet->full_name()));
return Status::OK();
}
Status TabletManager::load_tablet_from_dir(DataDir* store, TTabletId tablet_id,
SchemaHash schema_hash, const string& schema_hash_path,
bool force, bool restore) {
SCOPED_SWITCH_THREAD_LOCAL_MEM_TRACKER(_mem_tracker);
LOG(INFO) << "begin to load tablet from dir. "
<< " tablet_id=" << tablet_id << " schema_hash=" << schema_hash
<< " path = " << schema_hash_path << " force = " << force << " restore = " << restore;
// not add lock here, because load_tablet_from_meta already add lock
std::string header_path = TabletMeta::construct_header_file_path(schema_hash_path, tablet_id);
// should change shard id before load tablet
std::string shard_path =
path_util::dir_name(path_util::dir_name(path_util::dir_name(header_path)));
std::string shard_str = shard_path.substr(shard_path.find_last_of('/') + 1);
int32_t shard = stol(shard_str);
// load dir is called by clone, restore, storage migration
// should change tablet uid when tablet object changed
RETURN_NOT_OK_LOG(
TabletMeta::reset_tablet_uid(header_path),
strings::Substitute("failed to set tablet uid when copied meta file. header_path=%0",
header_path));
;
if (!Env::Default()->path_exists(header_path).ok()) {
LOG(WARNING) << "fail to find header file. [header_path=" << header_path << "]";
return Status::OLAPInternalError(OLAP_ERR_FILE_NOT_EXIST);
}
TabletMetaSharedPtr tablet_meta(new TabletMeta());
if (tablet_meta->create_from_file(header_path) != Status::OK()) {
LOG(WARNING) << "fail to load tablet_meta. file_path=" << header_path;
return Status::OLAPInternalError(OLAP_ERR_ENGINE_LOAD_INDEX_TABLE_ERROR);
}
// has to change shard id here, because meta file maybe copied from other source
// its shard is different from local shard
tablet_meta->set_shard_id(shard);
std::string meta_binary;
tablet_meta->serialize(&meta_binary);
RETURN_NOT_OK_LOG(load_tablet_from_meta(store, tablet_id, schema_hash, meta_binary, true, force,
restore, true),
strings::Substitute("fail to load tablet. header_path=$0", header_path));
return Status::OK();
}
Status TabletManager::report_tablet_info(TTabletInfo* tablet_info) {
DorisMetrics::instance()->report_tablet_requests_total->increment(1);
LOG(INFO) << "begin to process report tablet info."
<< "tablet_id=" << tablet_info->tablet_id;
Status res = Status::OK();
TabletSharedPtr tablet = get_tablet(tablet_info->tablet_id);
if (tablet == nullptr) {
LOG(WARNING) << "can't find tablet=" << tablet_info->tablet_id;
return Status::OLAPInternalError(OLAP_ERR_TABLE_NOT_FOUND);
}
tablet->build_tablet_report_info(tablet_info);
VLOG_TRACE << "success to process report tablet info.";
return res;
}
Status TabletManager::build_all_report_tablets_info(std::map<TTabletId, TTablet>* tablets_info) {
DCHECK(tablets_info != nullptr);
LOG(INFO) << "begin to build all report tablets info";
// build the expired txn map first, outside the tablet map lock
std::map<TabletInfo, std::vector<int64_t>> expire_txn_map;
StorageEngine::instance()->txn_manager()->build_expire_txn_map(&expire_txn_map);
LOG(INFO) << "find expired transactions for " << expire_txn_map.size() << " tablets";
DorisMetrics::instance()->report_all_tablets_requests_total->increment(1);
HistogramStat tablet_version_num_hist;
auto local_cache = std::make_shared<std::vector<TTabletStat>>();
for (const auto& tablets_shard : _tablets_shards) {
std::shared_lock rdlock(tablets_shard.lock);
for (const auto& item : tablets_shard.tablet_map) {
uint64_t tablet_id = item.first;
TabletSharedPtr tablet_ptr = item.second;
TTablet t_tablet;
TTabletInfo tablet_info;
tablet_ptr->build_tablet_report_info(&tablet_info, true);
// find expired transaction corresponding to this tablet
TabletInfo tinfo(tablet_id, tablet_ptr->schema_hash(), tablet_ptr->tablet_uid());
auto find = expire_txn_map.find(tinfo);
if (find != expire_txn_map.end()) {
tablet_info.__set_transaction_ids(find->second);
expire_txn_map.erase(find);
}
t_tablet.tablet_infos.push_back(tablet_info);
tablet_version_num_hist.add(tablet_ptr->version_count());
tablets_info->emplace(tablet_id, t_tablet);
TTabletStat t_tablet_stat;
t_tablet_stat.__set_tablet_id(tablet_info.tablet_id);
t_tablet_stat.__set_data_size(tablet_info.data_size);
t_tablet_stat.__set_remote_data_size(tablet_info.remote_data_size);
t_tablet_stat.__set_row_num(tablet_info.row_count);
t_tablet_stat.__set_version_count(tablet_info.version_count);
local_cache->emplace_back(std::move(t_tablet_stat));
}
}
{
std::lock_guard<std::mutex> guard(_tablet_stat_cache_mutex);
_tablet_stat_list_cache = local_cache;
}
DorisMetrics::instance()->tablet_version_num_distribution->set_histogram(
tablet_version_num_hist);
LOG(INFO) << "success to build all report tablets info. tablet_count=" << tablets_info->size();
return Status::OK();
}
Status TabletManager::start_trash_sweep() {
SCOPED_SWITCH_THREAD_LOCAL_MEM_TRACKER(_mem_tracker);
{
std::vector<TabletSharedPtr>
all_tablets; // we use this vector to save all tablet ptr for saving lock time.
for (auto& tablets_shard : _tablets_shards) {
tablet_map_t& tablet_map = tablets_shard.tablet_map;
{
std::shared_lock rdlock(tablets_shard.lock);
for (auto& item : tablet_map) {
// try to clean empty item
all_tablets.push_back(item.second);
}
}
// Avoid hold the shard lock too long, so we get tablet to a vector and clean here
for (const auto& tablet : all_tablets) {
tablet->delete_expired_stale_rowset();
}
all_tablets.clear();
}
}
int32_t clean_num = 0;
do {
#ifndef BE_TEST
sleep(1);
#endif
clean_num = 0;
// should get write lock here, because it will remove tablet from shut_down_tablets
// and get tablet will access shut_down_tablets
std::lock_guard<std::shared_mutex> wrlock(_shutdown_tablets_lock);
auto it = _shutdown_tablets.begin();
while (it != _shutdown_tablets.end()) {
// check if the meta has the tablet info and its state is shutdown
if (it->use_count() > 1) {
// it means current tablet is referenced by other thread
++it;
continue;
}
TabletMetaSharedPtr tablet_meta(new TabletMeta());
Status check_st = TabletMetaManager::get_meta((*it)->data_dir(), (*it)->tablet_id(),
(*it)->schema_hash(), tablet_meta);
if (check_st.ok()) {
if (tablet_meta->tablet_state() != TABLET_SHUTDOWN ||
tablet_meta->tablet_uid() != (*it)->tablet_uid()) {
LOG(WARNING) << "tablet's state changed to normal, skip remove dirs"
<< " tablet id = " << tablet_meta->tablet_id()
<< " schema hash = " << tablet_meta->schema_hash()
<< " old tablet_uid=" << (*it)->tablet_uid()
<< " cur tablet_uid=" << tablet_meta->tablet_uid();
// remove it from list
it = _shutdown_tablets.erase(it);
continue;
}
// move data to trash
const auto& tablet_path = (*it)->tablet_path();
if (Env::Default()->path_exists(tablet_path).ok()) {
// take snapshot of tablet meta
auto meta_file_path = fmt::format("{}/{}.hdr", tablet_path, (*it)->tablet_id());
(*it)->tablet_meta()->save(meta_file_path);
LOG(INFO) << "start to move tablet to trash. " << tablet_path;
Status rm_st = (*it)->data_dir()->move_to_trash(tablet_path);
if (rm_st != Status::OK()) {
LOG(WARNING) << "fail to move dir to trash. " << tablet_path;
++it;
continue;
}
}
// remove tablet meta
TabletMetaManager::remove((*it)->data_dir(), (*it)->tablet_id(),
(*it)->schema_hash());
LOG(INFO) << "successfully move tablet to trash. "
<< "tablet_id=" << (*it)->tablet_id()
<< ", schema_hash=" << (*it)->schema_hash()
<< ", tablet_path=" << tablet_path;
it = _shutdown_tablets.erase(it);
++clean_num;
} else {
// if could not find tablet info in meta store, then check if dir existed
const auto& tablet_path = (*it)->tablet_path();
if (Env::Default()->path_exists(tablet_path).ok()) {
LOG(WARNING) << "errors while load meta from store, skip this tablet. "
<< "tablet_id=" << (*it)->tablet_id()
<< ", schema_hash=" << (*it)->schema_hash();
++it;
} else {
LOG(INFO) << "could not find tablet dir, skip it and remove it from gc-queue. "
<< "tablet_id=" << (*it)->tablet_id()
<< ", schema_hash=" << (*it)->schema_hash()
<< ", tablet_path=" << tablet_path;
it = _shutdown_tablets.erase(it);
}
}
// yield to avoid holding _tablet_map_lock for too long
if (clean_num >= 200) {
break;
}
}
// >= 200 means there may be more tablets need to be handled
// So continue
} while (clean_num >= 200);
return Status::OK();
} // start_trash_sweep
void TabletManager::register_clone_tablet(int64_t tablet_id) {
tablets_shard& shard = _get_tablets_shard(tablet_id);
std::lock_guard<std::shared_mutex> wrlock(shard.lock);
shard.tablets_under_clone.insert(tablet_id);
}
void TabletManager::unregister_clone_tablet(int64_t tablet_id) {
tablets_shard& shard = _get_tablets_shard(tablet_id);
std::lock_guard<std::shared_mutex> wrlock(shard.lock);
shard.tablets_under_clone.erase(tablet_id);
}
void TabletManager::try_delete_unused_tablet_path(DataDir* data_dir, TTabletId tablet_id,
SchemaHash schema_hash,
const string& schema_hash_path) {
SCOPED_SWITCH_THREAD_LOCAL_MEM_TRACKER(_mem_tracker);
// acquire the read lock, so that there is no creating tablet or load tablet from meta tasks
// create tablet and load tablet task should check whether the dir exists
tablets_shard& shard = _get_tablets_shard(tablet_id);
std::shared_lock rdlock(shard.lock);
// check if meta already exists
TabletMetaSharedPtr tablet_meta(new TabletMeta());
Status check_st = TabletMetaManager::get_meta(data_dir, tablet_id, schema_hash, tablet_meta);
if (check_st.ok()) {
LOG(INFO) << "tablet meta exist is meta store, skip delete the path " << schema_hash_path;
return;
}
if (shard.tablets_under_clone.count(tablet_id) > 0) {
LOG(INFO) << "tablet is under clone, skip delete the path " << schema_hash_path;
return;
}
// TODO(ygl): may do other checks in the future
if (Env::Default()->path_exists(schema_hash_path).ok()) {
LOG(INFO) << "start to move tablet to trash. tablet_path = " << schema_hash_path;
Status rm_st = data_dir->move_to_trash(schema_hash_path);
if (!rm_st.ok()) {
LOG(WARNING) << "fail to move dir to trash. dir=" << schema_hash_path;
} else {
LOG(INFO) << "move path " << schema_hash_path << " to trash successfully";
}
}
return;
}
void TabletManager::update_root_path_info(std::map<string, DataDirInfo>* path_map,
size_t* tablet_count) {
DCHECK(tablet_count);
*tablet_count = 0;
for (const auto& tablets_shard : _tablets_shards) {
std::shared_lock rdlock(tablets_shard.lock);
for (const auto& item : tablets_shard.tablet_map) {
TabletSharedPtr tablet = item.second;
++(*tablet_count);
auto iter = path_map->find(tablet->data_dir()->path());
if (iter == path_map->end()) {
continue;
}
if (iter->second.is_used) {
iter->second.local_used_capacity += tablet->tablet_local_size();
iter->second.remote_used_capacity += tablet->tablet_remote_size();
}
}
}
}
void TabletManager::get_partition_related_tablets(int64_t partition_id,
std::set<TabletInfo>* tablet_infos) {
std::shared_lock rdlock(_partition_tablet_map_lock);
if (_partition_tablet_map.find(partition_id) != _partition_tablet_map.end()) {
*tablet_infos = _partition_tablet_map[partition_id];
}
}
void TabletManager::do_tablet_meta_checkpoint(DataDir* data_dir) {
SCOPED_SWITCH_THREAD_LOCAL_MEM_TRACKER(_mem_tracker);
std::vector<TabletSharedPtr> related_tablets;
{
for (auto& tablets_shard : _tablets_shards) {
std::shared_lock rdlock(tablets_shard.lock);
for (auto& item : tablets_shard.tablet_map) {
TabletSharedPtr& tablet_ptr = item.second;
if (tablet_ptr->tablet_state() != TABLET_RUNNING) {
continue;
}
if (tablet_ptr->data_dir()->path_hash() != data_dir->path_hash() ||
!tablet_ptr->is_used() || !tablet_ptr->init_succeeded()) {
continue;
}
related_tablets.push_back(tablet_ptr);
}
}
}
int counter = 0;
MonotonicStopWatch watch;
watch.start();
for (TabletSharedPtr tablet : related_tablets) {
if (tablet->do_tablet_meta_checkpoint()) {
++counter;
}
}
int64_t cost = watch.elapsed_time() / 1000 / 1000;
LOG(INFO) << "finish to do meta checkpoint on dir: " << data_dir->path()
<< ", number: " << counter << ", cost(ms): " << cost;
}
Status TabletManager::_create_tablet_meta_unlocked(const TCreateTabletReq& request, DataDir* store,
const bool is_schema_change,
const Tablet* base_tablet,
TabletMetaSharedPtr* tablet_meta) {
uint32_t next_unique_id = 0;
std::unordered_map<uint32_t, uint32_t> col_idx_to_unique_id;
if (!is_schema_change) {
for (uint32_t col_idx = 0; col_idx < request.tablet_schema.columns.size(); ++col_idx) {
col_idx_to_unique_id[col_idx] = col_idx;
}
next_unique_id = request.tablet_schema.columns.size();
} else {
next_unique_id = base_tablet->next_unique_id();
auto& new_columns = request.tablet_schema.columns;
for (uint32_t new_col_idx = 0; new_col_idx < new_columns.size(); ++new_col_idx) {
const TColumn& column = new_columns[new_col_idx];
// For schema change, compare old_tablet and new_tablet:
// 1. if column exist in both new_tablet and old_tablet, choose the column's
// unique_id in old_tablet to be the column's ordinal number in new_tablet
// 2. if column exists only in new_tablet, assign next_unique_id of old_tablet
// to the new column
int32_t old_col_idx = base_tablet->field_index(column.column_name);
if (old_col_idx != -1) {
uint32_t old_unique_id =
base_tablet->tablet_schema().column(old_col_idx).unique_id();
col_idx_to_unique_id[new_col_idx] = old_unique_id;
} else {
// Not exist in old tablet, it is a new added column
col_idx_to_unique_id[new_col_idx] = next_unique_id++;
}
}
}
VLOG_NOTICE << "creating tablet meta. next_unique_id=" << next_unique_id;
// We generate a new tablet_uid for this new tablet.
uint64_t shard_id = 0;
RETURN_NOT_OK_LOG(store->get_shard(&shard_id), "fail to get root path shard");
Status res = TabletMeta::create(request, TabletUid::gen_uid(), shard_id, next_unique_id,
col_idx_to_unique_id, tablet_meta);
RETURN_NOT_OK(res);
if (request.__isset.storage_format) {
if (request.storage_format == TStorageFormat::DEFAULT) {
(*tablet_meta)
->set_preferred_rowset_type(StorageEngine::instance()->default_rowset_type());
} else if (request.storage_format == TStorageFormat::V1) {
(*tablet_meta)->set_preferred_rowset_type(ALPHA_ROWSET);
} else if (request.storage_format == TStorageFormat::V2) {
(*tablet_meta)->set_preferred_rowset_type(BETA_ROWSET);
} else {
LOG(FATAL) << "invalid TStorageFormat: " << request.storage_format;
return Status::OLAPInternalError(OLAP_ERR_CE_CMD_PARAMS_ERROR);
}
}
return res;
}
TabletSharedPtr TabletManager::_get_tablet_unlocked(TTabletId tablet_id) {
VLOG_NOTICE << "begin to get tablet. tablet_id=" << tablet_id;
tablet_map_t& tablet_map = _get_tablet_map(tablet_id);
const auto& iter = tablet_map.find(tablet_id);
if (iter != tablet_map.end()) {
return iter->second;
}
return nullptr;
}
void TabletManager::_add_tablet_to_partition(const TabletSharedPtr& tablet) {
std::lock_guard<std::shared_mutex> wrlock(_partition_tablet_map_lock);
_partition_tablet_map[tablet->partition_id()].insert(tablet->get_tablet_info());
}
void TabletManager::_remove_tablet_from_partition(const TabletSharedPtr& tablet) {
std::lock_guard<std::shared_mutex> wrlock(_partition_tablet_map_lock);
_partition_tablet_map[tablet->partition_id()].erase(tablet->get_tablet_info());
if (_partition_tablet_map[tablet->partition_id()].empty()) {
_partition_tablet_map.erase(tablet->partition_id());
}
}
void TabletManager::obtain_specific_quantity_tablets(vector<TabletInfo>& tablets_info,
int64_t num) {
for (const auto& tablets_shard : _tablets_shards) {
std::shared_lock rdlock(tablets_shard.lock);
for (const auto& item : tablets_shard.tablet_map) {
TabletSharedPtr tablet = item.second;
if (tablets_info.size() >= num) {
return;
}
if (tablet == nullptr) {
continue;
}
tablets_info.push_back(tablet->get_tablet_info());
}
}
}
std::shared_mutex& TabletManager::_get_tablets_shard_lock(TTabletId tabletId) {
return _get_tablets_shard(tabletId).lock;
}
TabletManager::tablet_map_t& TabletManager::_get_tablet_map(TTabletId tabletId) {
return _get_tablets_shard(tabletId).tablet_map;
}
TabletManager::tablets_shard& TabletManager::_get_tablets_shard(TTabletId tabletId) {
return _tablets_shards[tabletId & _tablets_shards_mask];
}
void TabletManager::get_tablets_distribution_on_different_disks(
std::map<int64_t, std::map<DataDir*, int64_t>>& tablets_num_on_disk,
std::map<int64_t, std::map<DataDir*, std::vector<TabletSize>>>& tablets_info_on_disk) {
std::vector<DataDir*> data_dirs = StorageEngine::instance()->get_stores();
std::map<int64_t, std::set<TabletInfo>> partition_tablet_map;
{
// When drop tablet, '_partition_tablet_map_lock' is locked in 'tablet_shard_lock'.
// To avoid locking 'tablet_shard_lock' in '_partition_tablet_map_lock', we lock and
// copy _partition_tablet_map here.
std::shared_lock rdlock(_partition_tablet_map_lock);
partition_tablet_map = _partition_tablet_map;
}
std::map<int64_t, std::set<TabletInfo>>::iterator partition_iter = partition_tablet_map.begin();
for (; partition_iter != partition_tablet_map.end(); ++partition_iter) {
std::map<DataDir*, int64_t> tablets_num;
std::map<DataDir*, std::vector<TabletSize>> tablets_info;
for (int i = 0; i < data_dirs.size(); i++) {
tablets_num[data_dirs[i]] = 0;
}
int64_t partition_id = partition_iter->first;
std::set<TabletInfo>::iterator tablet_info_iter = (partition_iter->second).begin();
for (; tablet_info_iter != (partition_iter->second).end(); ++tablet_info_iter) {
// get_tablet() will hold 'tablet_shard_lock'
TabletSharedPtr tablet = get_tablet(tablet_info_iter->tablet_id);
if (tablet == nullptr) {
continue;
}
DataDir* data_dir = tablet->data_dir();
size_t tablet_footprint = tablet->tablet_footprint();
tablets_num[data_dir]++;
TabletSize tablet_size(tablet_info_iter->tablet_id, tablet_info_iter->schema_hash,
tablet_footprint);
tablets_info[data_dir].push_back(tablet_size);
}
tablets_num_on_disk[partition_id] = tablets_num;
tablets_info_on_disk[partition_id] = tablets_info;
}
}
Status TabletManager::_get_storage_param(DataDir* data_dir, const std::string& storage_name,
StorageParamPB* storage_param) {
storage_param->set_storage_medium(
fs::fs_util::get_storage_medium_pb(data_dir->storage_medium()));
return Status::OK();
}
struct SortCtx {
SortCtx(TabletSharedPtr tablet, int64_t cooldown_timestamp, int64_t file_size)
: tablet(tablet), cooldown_timestamp(cooldown_timestamp), file_size(file_size) {}
TabletSharedPtr tablet;
int64_t cooldown_timestamp;
int64_t file_size;
};
void TabletManager::get_cooldown_tablets(std::vector<TabletSharedPtr>* tablets) {
std::vector<SortCtx> sort_ctx_vec;
for (const auto& tablets_shard : _tablets_shards) {
std::shared_lock rdlock(tablets_shard.lock);
for (const auto& item : tablets_shard.tablet_map) {
const TabletSharedPtr& tablet = item.second;
int64_t cooldown_timestamp = -1;
size_t file_size = -1;
if (tablet->need_cooldown(&cooldown_timestamp, &file_size)) {
sort_ctx_vec.emplace_back(tablet, cooldown_timestamp, file_size);
}
}
}
std::sort(sort_ctx_vec.begin(), sort_ctx_vec.end(), [](SortCtx a, SortCtx b) {
if (a.cooldown_timestamp != -1 && b.cooldown_timestamp != -1) {
return a.cooldown_timestamp < b.cooldown_timestamp;
}
if (a.cooldown_timestamp != -1 && b.cooldown_timestamp == -1) {
return true;
}
if (a.cooldown_timestamp == -1 && b.cooldown_timestamp != -1) {
return false;
}
return a.file_size > b.file_size;
});
for (SortCtx& ctx : sort_ctx_vec) {
VLOG_DEBUG << "get cooldown tablet: " << ctx.tablet->tablet_id();
tablets->push_back(std::move(ctx.tablet));
}
}
void TabletManager::get_all_tablets_storage_format(TCheckStorageFormatResult* result) {
DCHECK(result != nullptr);
for (const auto& tablets_shard : _tablets_shards) {
std::shared_lock rdlock(tablets_shard.lock);
for (const auto& item : tablets_shard.tablet_map) {
uint64_t tablet_id = item.first;
if (item.second->all_beta()) {
result->v2_tablets.push_back(tablet_id);
} else {
result->v1_tablets.push_back(tablet_id);
}
}
}
result->__isset.v1_tablets = true;
result->__isset.v2_tablets = true;
}
} // end namespace doris
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