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oceanbase/src/storage/checkpoint/ob_checkpoint_executor.cpp
wangzelin.wzl 93a1074b0c patch 4.0
2022-10-24 17:57:12 +08:00

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/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#define USING_LOG_PREFIX STORAGE
#include "storage/ls/ob_ls.h"
#include "storage/checkpoint/ob_checkpoint_executor.h"
#include "storage/tx_storage/ob_checkpoint_service.h"
#include "storage/checkpoint/ob_data_checkpoint.h"
#include "share/ob_force_print_log.h"
#include "logservice/ob_log_base_type.h"
namespace oceanbase
{
using namespace palf;
using namespace logservice;
namespace storage
{
namespace checkpoint
{
ObCheckpointExecutor::ObCheckpointExecutor()
: wait_advance_checkpoint_(false),
last_set_wait_advance_checkpoint_time_(0),
update_checkpoint_enabled_(false)
{
reset();
}
ObCheckpointExecutor::~ObCheckpointExecutor()
{
reset();
}
void ObCheckpointExecutor::reset()
{
for (int i = 0; i < ObLogBaseType::MAX_LOG_BASE_TYPE; i++) {
handlers_[i] = NULL;
}
ls_ = NULL;
loghandler_ = NULL;
}
int ObCheckpointExecutor::register_handler(const ObLogBaseType &type,
ObICheckpointSubHandler *handler)
{
int ret = OB_SUCCESS;
if (!is_valid_log_base_type(type) || NULL == handler) {
ret = OB_INVALID_ARGUMENT;
STORAGE_LOG(WARN, "invalid arguments", K(ret), K(type), K(handler));
} else {
if (OB_NOT_NULL(handlers_[type])) {
STORAGE_LOG(WARN, "repeat register into checkpoint_executor", K(ret), K(type), K(handler));
} else {
handlers_[type] = handler;
}
}
return ret;
}
void ObCheckpointExecutor::unregister_handler(const ObLogBaseType &type)
{
int ret = OB_SUCCESS;
if (!is_valid_log_base_type(type)) {
ret = OB_INVALID_ARGUMENT;
STORAGE_LOG(WARN, "invalid arguments", K(ret), K(type));
} else {
handlers_[type] = NULL;
}
}
int ObCheckpointExecutor::init(ObLS *ls, ObILogHandler *loghandler)
{
int ret = OB_SUCCESS;
ls_ = ls;
loghandler_ = loghandler;
return ret;
}
void ObCheckpointExecutor::start()
{
online();
}
void ObCheckpointExecutor::online()
{
ObSpinLockGuard guard(lock_);
update_checkpoint_enabled_ = true;
}
void ObCheckpointExecutor::offline()
{
ObSpinLockGuard guard(lock_);
update_checkpoint_enabled_ = false;
}
inline void get_min_rec_log_ts_service_type_by_index_(int index, char* service_type)
{
int ret = OB_SUCCESS;
if (index == 0) {
strncpy(service_type ,"MAX_DECIDED_LOG_TS", common::MAX_SERVICE_TYPE_BUF_LENGTH);
} else if (OB_FAIL(log_base_type_to_string(ObLogBaseType(index),
service_type,
common::MAX_SERVICE_TYPE_BUF_LENGTH))) {
STORAGE_LOG(WARN, "log_base_type_to_string failed", K(ret), K(index));
strncpy(service_type ,"UNKNOWN_SERVICE_TYPE", common::MAX_SERVICE_TYPE_BUF_LENGTH);
}
}
int ObCheckpointExecutor::update_clog_checkpoint()
{
int ret = OB_SUCCESS;
ObSpinLockGuard guard(lock_);
if (update_checkpoint_enabled_) {
ObFreezer *freezer = ls_->get_freezer();
if (OB_NOT_NULL(freezer)) {
int64_t checkpoint_ts = INT64_MAX;
if (OB_FAIL(freezer->get_max_consequent_callbacked_log_ts(checkpoint_ts))) {
STORAGE_LOG(WARN, "get_max_consequent_callbacked_log_ts failed", K(ret), K(freezer->get_ls_id()));
} else {
// used to record which handler provide the smallest rec_log_ts
int min_rec_log_ts_service_type_index = 0;
char service_type[common::MAX_SERVICE_TYPE_BUF_LENGTH];
for (int i = 1; i < ObLogBaseType::MAX_LOG_BASE_TYPE; i++) {
if (OB_NOT_NULL(handlers_[i])) {
int64_t rec_log_ts = handlers_[i]->get_rec_log_ts();
if (rec_log_ts > 0 && rec_log_ts < checkpoint_ts) {
checkpoint_ts = rec_log_ts;
min_rec_log_ts_service_type_index = i;
}
}
}
get_min_rec_log_ts_service_type_by_index_(min_rec_log_ts_service_type_index, service_type);
const int64_t checkpoint_ts_in_ls_meta = ls_->get_clog_checkpoint_ts();
const share::ObLSID ls_id = ls_->get_ls_id();
LSN clog_checkpoint_lsn;
if (checkpoint_ts == checkpoint_ts_in_ls_meta) {
STORAGE_LOG(INFO, "[CHECKPOINT] clog checkpoint no change", K(checkpoint_ts),
K(checkpoint_ts_in_ls_meta), K(ls_id), K(service_type));
} else if (checkpoint_ts < checkpoint_ts_in_ls_meta) {
if (min_rec_log_ts_service_type_index == 0) {
STORAGE_LOG(INFO, "[CHECKPOINT] expexted when no log callbacked or replayed",
K(checkpoint_ts), K(checkpoint_ts_in_ls_meta), K(ls_id));
} else {
STORAGE_LOG(ERROR, "[CHECKPOINT] can not advance clog checkpoint", K(checkpoint_ts),
K(checkpoint_ts_in_ls_meta), K(ls_id), K(service_type));
}
} else if (OB_FAIL(loghandler_->locate_by_ts_ns_coarsely(checkpoint_ts, clog_checkpoint_lsn))) {
if (OB_ENTRY_NOT_EXIST == ret) {
STORAGE_LOG(WARN, "no file in disk", K(ret), K(ls_id), K(checkpoint_ts));
ret = OB_SUCCESS;
} else if (OB_NOT_INIT == ret) {
STORAGE_LOG(WARN, "palf has been disabled", K(ret), K(checkpoint_ts), K(ls_->get_ls_id()));
ret = OB_SUCCESS;
} else {
STORAGE_LOG(ERROR, "locate lsn by logts failed", K(ret), K(ls_id),
K(checkpoint_ts), K(checkpoint_ts_in_ls_meta));
}
} else if (OB_FAIL(ls_->set_clog_checkpoint_without_lock(clog_checkpoint_lsn, checkpoint_ts))) {
STORAGE_LOG(WARN, "set clog checkpoint failed", K(ret), K(clog_checkpoint_lsn), K(checkpoint_ts), K(ls_id));
} else if (OB_FAIL(loghandler_->advance_base_lsn(clog_checkpoint_lsn))) {
if (OB_NOT_INIT == ret) {
STORAGE_LOG(WARN, "palf has been disabled", K(ret), K(clog_checkpoint_lsn), K(ls_->get_ls_id()));
ret = OB_SUCCESS;
} else {
STORAGE_LOG(ERROR, "set base lsn failed", K(ret), K(clog_checkpoint_lsn), K(ls_id));
}
} else {
ATOMIC_STORE(&wait_advance_checkpoint_, false);
FLOG_INFO("[CHECKPOINT] update clog checkpoint successfully",
K(clog_checkpoint_lsn), K(checkpoint_ts), K(ls_id),
K(service_type));
}
}
} else {
STORAGE_LOG(WARN, "freezer should not null", K(ls_->get_ls_id()));
}
} else {
STORAGE_LOG(WARN, "update_checkpoint is not enabled", K(ls_->get_ls_id()));
}
return ret;
}
int ObCheckpointExecutor::advance_checkpoint_by_flush(int64_t recycle_ts) {
int ret = OB_SUCCESS;
int tmp_ret = OB_SUCCESS;
// calcu recycle_ts according to clog disk situation
if (recycle_ts == 0) {
LSN end_lsn;
int64_t calcu_recycle_ts = INT64_MAX;
if (OB_FAIL(loghandler_->get_end_lsn(end_lsn))) {
STORAGE_LOG(WARN, "get end lsn failed", K(ret), K(ls_->get_ls_id()));
} else {
LSN clog_checkpoint_lsn = ls_->get_clog_base_lsn();
LSN calcu_recycle_lsn = clog_checkpoint_lsn
+ ((end_lsn - clog_checkpoint_lsn) * CLOG_GC_PERCENT / 100);
if (OB_FAIL(loghandler_->locate_by_lsn_coarsely(calcu_recycle_lsn, recycle_ts))) {
STORAGE_LOG(WARN, "locate_by_lsn_coarsely failed", K(calcu_recycle_ts), K(calcu_recycle_lsn),
K(recycle_ts), K(ls_->get_ls_id()));
} else {
STORAGE_LOG(INFO, "advance checkpoint by flush to avoid clog disk full",
K(recycle_ts), K(end_lsn), K(clog_checkpoint_lsn),
K(calcu_recycle_lsn), K(ls_->get_ls_id()));
}
}
// the log of end_log_lsn and the log of clog_checkpoint_lsn may be in a block
if (recycle_ts < ls_->get_clog_checkpoint_ts()) {
recycle_ts = INT64_MAX;
}
}
if (OB_SUCC(ret)) {
if (recycle_ts < ls_->get_clog_checkpoint_ts()) {
ret = OB_NO_NEED_UPDATE;
STORAGE_LOG(WARN, "recycle_ts should not smaller than checkpoint_log_ts",
K(recycle_ts), K(ls_->get_clog_checkpoint_ts()), K(ls_->get_ls_id()));
} else {
STORAGE_LOG(INFO, "start flush",
K(recycle_ts),
K(ls_->get_clog_checkpoint_ts()),
K(ls_->get_ls_id()));
for (int i = 1; i < ObLogBaseType::MAX_LOG_BASE_TYPE; i++) {
if (OB_NOT_NULL(handlers_[i])
&& OB_SUCCESS != (tmp_ret = (handlers_[i]->flush(recycle_ts)))) {
STORAGE_LOG(WARN, "handler flush failed", K(recycle_ts), K(tmp_ret),
K(i), K(ls_->get_ls_id()));
}
}
}
}
return ret;
}
int ObCheckpointExecutor::get_checkpoint_info(ObIArray<ObCheckpointVTInfo> &checkpoint_array)
{
int ret = OB_SUCCESS;
checkpoint_array.reset();
for (int i = 1; i < ObLogBaseType::MAX_LOG_BASE_TYPE; i++) {
if (OB_NOT_NULL(handlers_[i])) {
ObCheckpointVTInfo info;
info.rec_log_ts = handlers_[i]->get_rec_log_ts();
info.service_type = i;
checkpoint_array.push_back(info);
}
}
return ret;
}
bool ObCheckpointExecutor::need_flush()
{
int ret = OB_SUCCESS;
bool need_flush = false;
int64_t end_log_ts = 0;
if (OB_FAIL(loghandler_->get_end_ts_ns(end_log_ts))) {
STORAGE_LOG(WARN, "get_end_ts_ns failed", K(ret));
} else if (end_log_ts -
ls_->get_clog_checkpoint_ts() > MAX_NEED_REPLAY_CLOG_INTERVAL) {
STORAGE_LOG(INFO, "over max need replay clog interval",
K(end_log_ts), K(ls_->get_clog_checkpoint_ts()));
need_flush = true;
}
return need_flush;
}
bool ObCheckpointExecutor::is_wait_advance_checkpoint()
{
if (ATOMIC_LOAD(&wait_advance_checkpoint_)) {
if (ObTimeUtility::current_time() - last_set_wait_advance_checkpoint_time_ > 10 * 1000 * 1000) {
ATOMIC_STORE(&wait_advance_checkpoint_, false);
}
}
return ATOMIC_LOAD(&wait_advance_checkpoint_);
}
void ObCheckpointExecutor::set_wait_advance_checkpoint(int64_t checkpoint_log_ts)
{
ObSpinLockGuard guard(lock_);
if (checkpoint_log_ts == ls_->get_clog_checkpoint_ts()) {
ATOMIC_STORE(&wait_advance_checkpoint_, true);
last_set_wait_advance_checkpoint_time_ = ObTimeUtility::current_time();
}
}
int64_t ObCheckpointExecutor::get_cannot_recycle_log_size()
{
int ret = OB_SUCCESS;
int64_t cannot_recycle_log_size = 0;
LSN end_lsn;
if (OB_FAIL(loghandler_->get_end_lsn(end_lsn))) {
STORAGE_LOG(WARN, "get end lsn failed", K(ret), K(ls_->get_ls_id()));
} else {
cannot_recycle_log_size =
end_lsn.val_ - ls_->get_clog_base_lsn().val_;
}
return cannot_recycle_log_size;
}
} // namespace checkpoint
} // namespace storage
} // namespace oceanbase
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