337 lines
10 KiB
C++
337 lines
10 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#include "observer/virtual_table/ob_virtual_sql_plan_statistics.h"
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#include "common/object/ob_object.h"
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#include "sql/plan_cache/ob_plan_cache.h"
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#include "observer/ob_server_utils.h"
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#include "observer/ob_server_struct.h"
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#include "observer/ob_req_time_service.h"
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#include "share/inner_table/ob_inner_table_schema.h"
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#include "sql/plan_cache/ob_ps_cache.h"
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using namespace oceanbase;
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using namespace sql;
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using namespace observer;
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using namespace common;
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namespace oceanbase
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{
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namespace observer
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{
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struct ObGetAllOperatorStatOp
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{
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explicit ObGetAllOperatorStatOp(common::ObIArray<ObOperatorStat> *key_array)
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: key_array_(key_array)
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{
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}
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ObGetAllOperatorStatOp()
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: key_array_(NULL)
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{
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}
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void reset() { key_array_ = NULL; }
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int set_key_array(common::ObIArray<ObOperatorStat> *key_array)
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{
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int ret = common::OB_SUCCESS;
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if (NULL == key_array) {
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ret = common::OB_INVALID_ARGUMENT;
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SERVER_LOG(WARN, "invalid argument", K(ret));
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} else {
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key_array_ = key_array;
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}
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return ret;
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}
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int operator()(common::hash::HashMapPair<ObCacheObjID, ObILibCacheObject *> &entry)
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{
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int ret = common::OB_SUCCESS;
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if (NULL == key_array_) {
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ret = common::OB_NOT_INIT;
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SERVER_LOG(WARN, "invalid argument", K(ret));
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} else {
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ObOperatorStat stat;
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ObPhysicalPlan *plan = NULL;
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if (ObLibCacheNameSpace::NS_CRSR == entry.second->get_ns()) {
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if (OB_ISNULL(plan = dynamic_cast<ObPhysicalPlan *>(entry.second))) {
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ret = OB_ERR_UNEXPECTED;
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SERVER_LOG(WARN, "unexpected null plan", K(ret), K(plan));
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}
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for (int64_t i = 0; i < plan->op_stats_.count() && OB_SUCC(ret); i++) {
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if (OB_FAIL(plan->op_stats_.get_op_stat_accumulation(plan,
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i, stat))) {
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SERVER_LOG(WARN, "fail to get op stat accumulation", K(ret), K(i));
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} else if (OB_FAIL(key_array_->push_back(stat))) {
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SERVER_LOG(WARN, "fail to push back plan_id", K(ret));
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}
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} // for end
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}
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}
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return ret;
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}
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common::ObIArray<ObOperatorStat> *key_array_;
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};
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ObVirtualSqlPlanStatistics::ObVirtualSqlPlanStatistics() :
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tenant_id_array_(),
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operator_stat_array_(),
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tenant_id_(0),
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tenant_id_array_idx_(0),
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operator_stat_array_idx_(OB_INVALID_ID)
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{
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}
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ObVirtualSqlPlanStatistics::~ObVirtualSqlPlanStatistics()
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{
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reset();
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}
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void ObVirtualSqlPlanStatistics::reset()
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{
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operator_stat_array_.reset();
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tenant_id_array_.reset();
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}
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int ObVirtualSqlPlanStatistics::inner_open()
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{
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int ret = OB_SUCCESS;
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uint64_t start_tenant_id = 0;
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uint64_t end_tenant_id = 0;
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if (key_ranges_.count() < 1) {
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ret = OB_ERR_UNEXPECTED;
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SERVER_LOG(WARN, "invalid key range", K(ret), K(key_ranges_.count()));
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} else {
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ObNewRange &range = key_ranges_.at(0);
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if (OB_UNLIKELY(range.get_start_key().get_obj_cnt() != 5
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|| range.get_end_key().get_obj_cnt() != 5)) {
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ret = OB_ERR_UNEXPECTED;
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SERVER_LOG(WARN, "unexpected # of rowkey columns",
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K(ret),
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"size of start key", range.get_start_key().get_obj_cnt(),
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"size of end key", range.get_end_key().get_obj_cnt());
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} else {
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ObObj tenant_id_low = range.get_start_key().get_obj_ptr()[0];
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ObObj tenant_id_high = range.get_end_key().get_obj_ptr()[0];
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if (tenant_id_low.is_min_value()
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&& tenant_id_high.is_max_value()) {
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start_tenant_id = OB_SYS_TENANT_ID;
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end_tenant_id = OB_SYS_TENANT_ID;
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} else if (tenant_id_low.get_type() != ObIntType
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|| tenant_id_high.get_type() != ObIntType) {
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ret = OB_ERR_UNEXPECTED;
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SERVER_LOG(WARN, "invalid tenant id", K(ret), K(tenant_id_low), K(tenant_id_high));
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} else {
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start_tenant_id = tenant_id_low.get_int();
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end_tenant_id = tenant_id_high.get_int();
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if (start_tenant_id != end_tenant_id) {
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ret = OB_ERR_UNEXPECTED;
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SERVER_LOG(WARN, "invalid tenant id range, can only search one tenant",
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K(ret), K(start_tenant_id), K(end_tenant_id));
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} else if (OB_SYS_TENANT_ID == start_tenant_id) {
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//查询租户为系统租户，可以查询所有的plan cache
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if (OB_FAIL(get_all_tenant_id())) {
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SERVER_LOG(WARN, "fail to get all tenant id", K(ret));
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}
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} else if (OB_FAIL(tenant_id_array_.push_back(start_tenant_id))) {
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SERVER_LOG(WARN, "fail to push back tenent id", K(ret));
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}
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}
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}
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}
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return ret;
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}
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int ObVirtualSqlPlanStatistics::get_all_tenant_id()
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{
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int ret = OB_SUCCESS;
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if (OB_FAIL(GCTX.omt_->get_mtl_tenant_ids(tenant_id_array_))) {
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SERVER_LOG(WARN, "failed to add tenant id", K(ret));
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}
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return ret;
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}
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int ObVirtualSqlPlanStatistics::get_row_from_specified_tenant(uint64_t tenant_id, bool &is_end)
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{
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int ret = OB_SUCCESS;
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// !!! 引用plan cache资源之前必须加ObReqTimeGuard
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ObReqTimeGuard req_timeinfo_guard;
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is_end = false;
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sql::ObPlanCache *plan_cache = NULL;
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if (OB_INVALID_ID == static_cast<uint64_t>(operator_stat_array_idx_)) {
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plan_cache = MTL(ObPlanCache*);
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ObGetAllOperatorStatOp operator_stat_op(&operator_stat_array_);
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if (OB_FAIL(plan_cache->foreach_cache_obj(operator_stat_op))) {
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SERVER_LOG(WARN, "fail to traverse id2stat_map");
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} else {
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operator_stat_array_idx_ = 0;
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}
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}
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if (OB_SUCC(ret)) {
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if (operator_stat_array_idx_ < 0) {
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ret = OB_ERR_UNEXPECTED;
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SERVER_LOG(WARN, "invalid operator_stat_array index", K(operator_stat_array_idx_));
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} else if (operator_stat_array_idx_ >= operator_stat_array_.count()) {
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is_end = true;
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operator_stat_array_idx_ = OB_INVALID_ID;
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operator_stat_array_.reset();
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} else {
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is_end = false;
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ObOperatorStat &opstat = operator_stat_array_.at(operator_stat_array_idx_);
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++operator_stat_array_idx_;
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if (OB_FAIL(fill_cells(opstat))) {
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SERVER_LOG(WARN, "fail to fill cells", K(opstat), K(tenant_id));
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}
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}
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}
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SERVER_LOG(DEBUG,
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"add plan from a tenant",
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K(ret),
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K(tenant_id));
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return ret;
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}
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int ObVirtualSqlPlanStatistics::fill_cells(const ObOperatorStat &pstat)
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{
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int ret = OB_SUCCESS;
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const int64_t col_count = output_column_ids_.count();
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ObObj *cells = cur_row_.cells_;
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ObString ipstr;
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for (int64_t i = 0; OB_SUCC(ret) && i < col_count; ++i) {
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uint64_t col_id = output_column_ids_.at(i);
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switch(col_id) {
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//tenant id
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case TENANT_ID: {
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cells[i].set_int(tenant_id_array_.at(tenant_id_array_idx_));
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break;
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}
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//ip
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case SVR_IP: {
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// ip
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ipstr.reset();
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if (OB_FAIL(ObServerUtils::get_server_ip(allocator_, ipstr))) {
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SERVER_LOG(ERROR, "get server ip failed", K(ret));
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} else {
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cells[i].set_varchar(ipstr);
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cells[i].set_collation_type(ObCharset::get_default_collation(ObCharset::get_default_charset()));
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}
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break;
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}
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//port
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case SVR_PORT: {
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// svr_port
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cells[i].set_int(GCTX.self_addr().get_port());
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break;
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}
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//plan id
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case PLAN_ID: {
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cells[i].set_int(pstat.plan_id_);
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break;
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}
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case OPERATION_ID: {
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cells[i].set_int(pstat.operation_id_);
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break;
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}
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case EXECUTIONS: {
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cells[i].set_int(pstat.execute_times_);
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break;
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}
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case OUTPUT_ROWS: {
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cells[i].set_int(pstat.output_rows_);
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break;
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}
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case INPUT_ROWS: {
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cells[i].set_int(pstat.input_rows_);
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break;
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}
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case RESCAN_TIMES: {
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cells[i].set_int(pstat.rescan_times_);
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break;
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}
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case BUFFER_GETS: {
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cells[i].set_int(0);
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break;
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}
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case DISK_READS: {
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cells[i].set_int(0);
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break;
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}
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case DISK_WRITES: {
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cells[i].set_int(0);
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break;
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}
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case ELAPSED_TIME: {
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cells[i].set_int(0);
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break;
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}
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case EXTEND_INFO1: {
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cells[i].set_null();
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break;
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}
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case EXTEND_INFO2: {
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cells[i].set_null();
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break;
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}
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default: {
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ret = OB_ERR_UNEXPECTED;
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SERVER_LOG(WARN,
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"invalid column id",
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K(ret),
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K(i),
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K(output_column_ids_),
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K(col_id));
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break;
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}
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}
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} // end for
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return ret;
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}
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int ObVirtualSqlPlanStatistics::inner_get_next_row(common::ObNewRow *&row)
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{
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int ret = OB_SUCCESS;
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bool is_sub_end = false;
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do {
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is_sub_end = false;
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if (tenant_id_array_idx_ < 0) {
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ret = OB_ERR_UNEXPECTED;
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SERVER_LOG(WARN, "invalid tenant_id_array idx", K(ret), K(tenant_id_array_idx_));
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} else if (tenant_id_array_idx_ >= tenant_id_array_.count()) {
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ret = OB_ITER_END;
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tenant_id_array_idx_ = 0;
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} else {
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uint64_t tenant_id = tenant_id_array_.at(tenant_id_array_idx_);
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MTL_SWITCH(tenant_id) {
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if (OB_FAIL(get_row_from_specified_tenant(tenant_id,
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is_sub_end))) {
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SERVER_LOG(WARN,
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"fail to insert plan by tenant id",
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K(ret),
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"tenant id",
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tenant_id_array_.at(tenant_id_array_idx_),
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K(tenant_id_array_idx_));
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} else {
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if (is_sub_end) {
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++tenant_id_array_idx_;
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}
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}
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}
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}
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} while(is_sub_end && OB_SUCCESS == ret);
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if (OB_SUCC(ret)) {
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row = &cur_row_;
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}
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return ret;
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}
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} //end namespace observer
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} //end namespace oceanbase
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