Files
oceanbase/src/sql/executor/ob_local_task_executor.cpp
wangzelin.wzl 93a1074b0c patch 4.0
2022-10-24 17:57:12 +08:00

82 lines
2.9 KiB
C++

/**
* 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_EXE
#include "sql/executor/ob_local_task_executor.h"
#include "sql/executor/ob_job.h"
#include "sql/executor/ob_task_executor_ctx.h"
#include "sql/executor/ob_execute_result.h"
#include "sql/engine/ob_physical_plan.h"
#include "lib/utility/utility.h"
#include "sql/engine/ob_exec_context.h"
#include "lib/profile/ob_perf_event.h"
using namespace oceanbase::common;
using namespace oceanbase::sql;
ObLocalTaskExecutor::ObLocalTaskExecutor()
{
}
ObLocalTaskExecutor::~ObLocalTaskExecutor()
{
}
// 执行Task,负责控制Task的执行流程,通过ObTransmit结果汇报/输出结果到客户端.
// execute内部负责重试逻辑管理,不对外暴露retry()接口
int ObLocalTaskExecutor::execute(ObExecContext &ctx, ObJob *job, ObTaskInfo *task_info)
{
UNUSED(job);
int ret = OB_SUCCESS;
ObOpSpec *root_spec_ = NULL; // for static engine
ObTaskExecutorCtx &task_exec_ctx = ctx.get_task_exec_ctx();
ObExecuteResult &exec_result = task_exec_ctx.get_execute_result();
if (OB_ISNULL(task_info)) {
ret = OB_NOT_INIT;
LOG_WARN("job or taskinfo not set", K(task_info));
} else {
if (OB_ISNULL(root_spec_ = task_info->get_root_spec())) {
ret = OB_NOT_INIT;
LOG_WARN("fail execute task. no query found.", K(ret));
} else if (OB_FAIL(build_task_op_input(ctx, *task_info, *root_spec_))) {
LOG_WARN("fail to build op input", K(ret));
} else {
LOG_DEBUG("static engine remote execute");
ObOperator *op = NULL;
if (OB_FAIL(root_spec_->create_operator(ctx, op))) {
LOG_WARN("create operator from spec failed", K(ret));
} else if (OB_ISNULL(op)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("created operator is NULL", K(ret));
} else {
exec_result.set_static_engine_root(op);
}
// 将task_info设成OB_TASK_STATE_RUNNING状态,
// 后面如果需要重试则会根据这个状态将该task_info中的partition信息
// 加入到需要重试的partition里面
task_info->set_state(OB_TASK_STATE_RUNNING);
}
if (OB_FAIL(ret)) {
// 如果失败了,则将task_info设成OB_TASK_STATE_FAILED状态,
// 这样后面如果需要重试则会根据这个状态将该task_info中的partition信息
// 加入到需要重试的partition里面
task_info->set_state(OB_TASK_STATE_FAILED);
}
}
NG_TRACE_EXT(local_task_completed, OB_ID(ret), ret);
return ret;
}