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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 SQL_DAS
#include "sql/das/ob_das_rpc_processor.h"
#include "sql/das/ob_data_access_service.h"
#include "sql/das/ob_das_utils.h"
#include "sql/engine/ob_exec_context.h"
#include "observer/ob_server_struct.h"
#include "storage/tx/ob_trans_service.h"
#include "observer/ob_srv_network_frame.h"
#include "lib/ash/ob_active_session_guard.h"
namespace oceanbase
{
namespace sql
{
template<obrpc::ObRpcPacketCode pcode>
int ObDASBaseAccessP<pcode>::init()
{
int ret = OB_SUCCESS;
ObDASTaskArg &task = RpcProcessor::arg_;
ObDASBaseAccessP<pcode>::get_das_factory() = &das_factory_;
das_remote_info_.exec_ctx_ = &exec_ctx_;
das_remote_info_.frame_info_ = &frame_info_;
task.set_remote_info(&das_remote_info_);
ObDASRemoteInfo::get_remote_info() = &das_remote_info_;
return ret;
}
template<obrpc::ObRpcPacketCode pcode>
int ObDASBaseAccessP<pcode>::before_process()
{
int ret = OB_SUCCESS;
ObDASTaskArg &task = RpcProcessor::arg_;
ObDASTaskResp &task_resp = RpcProcessor::result_;
ObMemAttr mem_attr;
mem_attr.tenant_id_ = task.get_task_op()->get_tenant_id();
mem_attr.label_ = "DASRpcPCtx";
exec_ctx_.get_allocator().set_attr(mem_attr);
ObActiveSessionGuard::setup_thread_local_ash();
ObActiveSessionGuard::get_stat().in_das_remote_exec_ = true;
ObActiveSessionGuard::get_stat().tenant_id_ = task.get_task_op()->get_tenant_id();
ObActiveSessionGuard::get_stat().trace_id_ = *ObCurTraceId::get_trace_id();
ObActiveSessionGuard::get_stat().user_id_ = das_remote_info_.user_id_;
ObActiveSessionGuard::get_stat().session_id_ = das_remote_info_.session_id_;
ObActiveSessionGuard::get_stat().plan_id_ = das_remote_info_.plan_id_;
MEMCPY(ObActiveSessionGuard::get_stat().sql_id_, das_remote_info_.sql_id_,
min(sizeof(ObActiveSessionGuard::get_stat().sql_id_), sizeof(das_remote_info_.sql_id_)));
if (OB_FAIL(RpcProcessor::before_process())) {
LOG_WARN("do rpc processor before_process failed", K(ret));
} else if (das_remote_info_.need_calc_expr_ &&
OB_FAIL(GCTX.schema_service_->get_tenant_schema_guard(MTL_ID(), schema_guard_))) {
LOG_WARN("fail to get schema guard", K(ret));
} else {
exec_ctx_.get_sql_ctx()->schema_guard_ = &schema_guard_;
}
return ret;
}
ERRSIM_POINT_DEF(EN_DAS_SIMULATE_EXTRA_RESULT_MEMORY_LIMIT);
template<obrpc::ObRpcPacketCode pcode>
int ObDASBaseAccessP<pcode>::process()
{
int ret = OB_SUCCESS;
LOG_DEBUG("DAS base access remote process", K_(RpcProcessor::arg));
ObDASTaskArg &task = RpcProcessor::arg_;
ObDASTaskResp &task_resp = RpcProcessor::result_;
const common::ObSEArray<ObIDASTaskOp*, 2> &task_ops = task.get_task_ops();
common::ObSEArray<ObIDASTaskResult*, 2> &task_results = task_resp.get_op_results();
ObDASTaskFactory *das_factory = ObDASBaseAccessP<pcode>::get_das_factory();
ObIDASTaskResult *op_result = nullptr;
ObIDASTaskOp *task_op = nullptr;
bool has_more = false;
int64_t memory_limit = das::OB_DAS_MAX_PACKET_SIZE;
#ifdef ERRSIM
if (EN_DAS_SIMULATE_EXTRA_RESULT_MEMORY_LIMIT) {
memory_limit = -EN_DAS_SIMULATE_EXTRA_RESULT_MEMORY_LIMIT;
LOG_INFO("das simulate extra result memory limit", K(memory_limit));
}
#endif
//regardless of the success of the task execution, the following meta info must be set
task_resp.set_ctrl_svr(task.get_ctrl_svr());
task_resp.set_runner_svr(task.get_runner_svr());
if (task_ops.count() == 0 || task_results.count() != 0) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("task op unexpected", K(ret), K(task_ops), K(task_results));
} else {
for (int i = 0; OB_SUCC(ret) && i < task_ops.count(); i++) {
task_op = task_ops.at(i);
if (OB_FAIL(das_factory->create_das_task_result(task_op->get_type(), op_result))) {
LOG_WARN("create das task result failed", K(ret));
} else if (OB_FAIL(task_resp.add_op_result(op_result))) {
LOG_WARN("failed to add op result", K(ret));
} else if (OB_FAIL(op_result->init(*task_op, CURRENT_CONTEXT->get_arena_allocator()))) {
LOG_WARN("failed to init op result", K(ret));
} else if (FALSE_IT(op_result->set_task_id(task_op->get_task_id()))) {
} else if (OB_FAIL(task_op->start_das_task())) {
LOG_WARN("start das task failed", K(ret));
} else if (OB_FAIL(task_op->fill_task_result(*task_results.at(i), has_more, memory_limit))) {
LOG_WARN("fill task result to controller failed", K(ret));
} else if (OB_UNLIKELY(has_more) && OB_FAIL(task_op->fill_extra_result())) {
LOG_WARN("fill extra result to controller failed", KR(ret));
} else {
task_resp.set_has_more(has_more);
ObWarningBuffer *wb = ob_get_tsi_warning_buffer();
if (wb != nullptr) {
//ignore the errcode of storing warning msg
(void)task_resp.store_warning_msg(*wb);
}
}
//因为end_task还有可能失败，需要通过RPC将end_task的返回值带回到scheduler上
int tmp_ret = task_op->end_das_task();
if (OB_SUCCESS != tmp_ret) {
LOG_WARN("end das task failed", K(ret), K(tmp_ret), K(task));
}
ret = COVER_SUCC(tmp_ret);
if (OB_NOT_NULL(task_op->get_trans_desc())) {
tmp_ret = MTL(transaction::ObTransService*)
->get_tx_exec_result(*task_op->get_trans_desc(),
task_resp.get_trans_result());
if (OB_SUCCESS != tmp_ret) {
LOG_WARN("get trans exec result failed", K(ret), K(task));
}
ret = COVER_SUCC(tmp_ret);
}
if (OB_SUCCESS != ret && is_schema_error(ret)) {
ret = GSCHEMASERVICE.is_schema_error_need_retry(NULL, task_op->get_tenant_id()) ?
OB_ERR_REMOTE_SCHEMA_NOT_FULL : OB_ERR_WAIT_REMOTE_SCHEMA_REFRESH;
}
task_resp.set_err_code(ret);
if (OB_SUCCESS != ret) {
task_resp.store_err_msg(ob_get_tsi_err_msg(ret));
LOG_WARN("process das access task failed", K(ret),
K(task.get_ctrl_svr()), K(task.get_runner_svr()));
}
if (has_more || memory_limit < 0) {
/**
* das serialized execution.
* If current resp buffer is overflow. We would reply result
* directly. following un-executed tasks would be executed
* later remotely.
*
* the insert op won't set has_more flag, but if it exceed the
* threshold of memory_limit, we should reply anyway.
*/
LOG_DEBUG("reply das result due to memory limit exceeded.",
K(has_more), K(memory_limit), K(i), K(task_ops.count()));
break;
}
LOG_DEBUG("process das base access task", K(ret), KPC(task_op), KPC(op_result), K(has_more));
}
}
return OB_SUCCESS;
}
template<obrpc::ObRpcPacketCode pcode>
int ObDASBaseAccessP<pcode>::after_process(int error_code)
{
int ret = OB_SUCCESS;
const int64_t elapsed_time = common::ObTimeUtility::current_time() - RpcProcessor::get_receive_timestamp();
if (OB_FAIL(RpcProcessor::after_process(error_code))) {
LOG_WARN("do das base rpc process failed", K(ret));
} else if (elapsed_time >= ObServerConfig::get_instance().trace_log_slow_query_watermark) {
//slow das task, print trace info
FORCE_PRINT_TRACE(THE_TRACE, "[slow das rpc process]");
}
//执行相关的错误信息不用传递给RPC框架，RPC框架不处理具体的RPC执行错误信息，始终返回OB_SUCCESS
return OB_SUCCESS;
}
template<obrpc::ObRpcPacketCode pcode>
void ObDASBaseAccessP<pcode>::cleanup()
{
ObActiveSessionGuard::get_stat().reuse();
ObActiveSessionGuard::setup_default_ash();
das_factory_.cleanup();
ObDASBaseAccessP<pcode>::get_das_factory() = nullptr;
if (das_remote_info_.trans_desc_ != nullptr) {
MTL(transaction::ObTransService*)->release_tx(*das_remote_info_.trans_desc_);
das_remote_info_.trans_desc_ = nullptr;
}
RpcProcessor::cleanup();
}
int ObDASSyncAccessP::process()
{
int ret = OB_SUCCESS;
LOG_DEBUG("DAS sync access remote process", K_(arg));
FLTSpanGuard(das_sync_rpc_process);
if (OB_FAIL(ObDASSyncRpcProcessor::process())) {
LOG_WARN("failed to process das sync rpc", K(ret));
}
return OB_SUCCESS;
}
int ObDASAsyncAccessP::process()
{
int ret = OB_SUCCESS;
LOG_DEBUG("DAS async access remote process", K_(arg));
FLTSpanGuard(das_async_rpc_process);
if (OB_FAIL(ObDASAsyncRpcProcessor::process())) {
LOG_WARN("failed to process das async rpc", K(ret));
}
return OB_SUCCESS;
}
void ObRpcDasAsyncAccessCallBack::on_timeout()
{
int ret = OB_TIMEOUT;
int64_t current_ts = ObTimeUtility::current_time();
int64_t timeout_ts = context_->get_timeout_ts();
// ESTIMATE_PS_RESERVE_TIME = 100 * 1000
if (timeout_ts - current_ts > 100 * 1000) {
LOG_DEBUG("rpc return OB_TIMEOUT before actual timeout, change error code to OB_RPC_CONNECT_ERROR", KR(ret),
K(timeout_ts), K(current_ts));
ret = OB_RPC_CONNECT_ERROR;
}
LOG_WARN("das async task timeout", KR(ret), K(get_task_ops()));
result_.set_err_code(ret);
result_.get_op_results().reuse();
context_->get_das_ref().inc_concurrency_limit_with_signal();
}
void ObRpcDasAsyncAccessCallBack::on_invalid()
{
int ret = OB_SUCCESS;
// a valid packet on protocol level, but can't decode it.
LOG_WARN("das async task invalid", K(get_task_ops()));
result_.set_err_code(OB_INVALID_ERROR);
result_.get_op_results().reuse();
context_->get_das_ref().inc_concurrency_limit_with_signal();
}
void ObRpcDasAsyncAccessCallBack::set_args(const Request &arg)
{
UNUSED(arg);
}
int ObRpcDasAsyncAccessCallBack::process()
{
int ret = OB_SUCCESS;
LOG_DEBUG("DAS async access callback process", K_(result));
if (OB_FAIL(get_rcode())) {
result_.set_err_code(get_rcode());
// we need to clear op results because they are not decoded from das async rpc due to rpc error.
result_.get_op_results().reuse();
LOG_WARN("das async rpc execution failed", K(get_rcode()), K_(result));
}
context_->get_das_ref().inc_concurrency_limit_with_signal();
return ret;
}
oceanbase::rpc::frame::ObReqTransport::AsyncCB *ObRpcDasAsyncAccessCallBack::clone(
const oceanbase::rpc::frame::SPAlloc &alloc) const {
UNUSED(alloc);
return const_cast<rpc::frame::ObReqTransport::AsyncCB *>(
static_cast<const rpc::frame::ObReqTransport::AsyncCB * const>(this));
}
int ObDasAsyncRpcCallBackContext::init(const ObMemAttr &attr)
{
alloc_.set_attr(attr);
return task_ops_.get_copy_assign_ret();
};
int ObDASSyncFetchP::process()
{
int ret = OB_SUCCESS;
FLTSpanGuard(fetch_das_result_process);
ObDASDataFetchReq &req = arg_;
ObDASDataFetchRes &res = result_;
ObDataAccessService *das = NULL;
const uint64_t tenant_id = req.get_tenant_id();
const int64_t task_id = req.get_task_id();
ObChunkDatumStore &datum_store = res.get_datum_store();
bool has_more = false;
if (tenant_id != MTL_ID()) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("wrong tenant id", KR(ret), K(req));
} else if (OB_FAIL(res.init(tenant_id, task_id))) {
LOG_WARN("init res failed", KR(ret), K(req));
} else if (OB_ISNULL(das = MTL(ObDataAccessService *))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("das is null", KR(ret), KP(das));
} else if (OB_FAIL(das->get_task_res_mgr().iterator_task_result(task_id,
datum_store,
has_more))) {
if (OB_UNLIKELY(OB_ENTRY_NOT_EXIST == ret)) {
// After server reboot, the hash map containing task results was gone.
// We need to retry for such cases.
LOG_WARN("task result was gone due to server reboot, will retry", KR(ret), K(res));
ret = OB_RPC_SEND_ERROR;
} else {
LOG_WARN("get task result failed", KR(ret), K(res));
}
} else {
res.set_has_more(has_more);
}
return ret;
}
int ObDASSyncFetchP::after_process(int error_code)
{
int ret = OB_SUCCESS;
const int64_t elapsed_time = common::ObTimeUtility::current_time() - get_receive_timestamp();
if (OB_FAIL(ObDASSyncFetchResRpcProcessor::after_process(error_code))) {
LOG_WARN("do das sync base rpc process failed", K(ret));
} else if (elapsed_time >= ObServerConfig::get_instance().trace_log_slow_query_watermark) {
//slow das task, print trace info
FORCE_PRINT_TRACE(THE_TRACE, "[slow das rpc process]");
}
//执行相关的错误信息不用传递给RPC框架，RPC框架不处理具体的RPC执行错误信息，始终返回OB_SUCCESS
return OB_SUCCESS;
}
int ObDASAsyncEraseP::process()
{
int ret = OB_SUCCESS;
ObDASDataEraseReq &req = arg_;
ObDataAccessService *das = NULL;
const uint64_t tenant_id = req.get_tenant_id();
const int64_t task_id = req.get_task_id();
if (OB_ISNULL(das = MTL(ObDataAccessService *))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("das is null", KR(ret), KP(das));
} else if (OB_FAIL(das->get_task_res_mgr().erase_task_result(task_id))) {
LOG_WARN("erase task result failed", KR(ret), K(task_id));
}
return ret;
}
} // namespace sql
} // namespace oceanbase