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doris/be/test/olap/push_handler_test.cpp
Yingchun Lai 498b06fbe2 [Metrics] Support tablet level metrics (#4428) 
Sometimes we want to detect the hotspot of a cluster, for example, hot scanned tablet, hot wrote tablet,
but we have no insight about tablets in the cluster.
This patch introduce tablet level metrics to help to achieve this object, now support 4 metrics on tablets: `query_scan_bytes `, `query_scan_rows `, `flush_bytes `, `flush_count `. 
However, one BE may holds hundreds of thousands of tablets, so I add a parameter for the metrics HTTP request,
and not return tablet level metrics by default.
2020-09-02 10:39:41 +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 <gtest/gtest.h>
#include "exprs/cast_functions.h"
#include "gen_cpp/Descriptors_types.h"
#include "gen_cpp/PlanNodes_types.h"
#include "olap/push_handler.h"
#include "olap/row.h"
#include "runtime/descriptors.h"
#include "runtime/exec_env.h"
#include "runtime/user_function_cache.h"
namespace doris {
class PushHandlerTest : public testing::Test {
public:
PushHandlerTest() {
init();
}
static void SetUpTestCase() {
UserFunctionCache::instance()->init("./be/test/runtime/test_data/user_function_cache/normal");
CastFunctions::init();
}
protected:
virtual void SetUp() {}
virtual void TearDown() {}
private:
void init();
Schema create_schema();
int create_src_tuple(TDescriptorTable& t_desc_table, int next_slot_id);
int create_dst_tuple(TDescriptorTable& t_desc_table, int next_slot_id);
void create_expr_info();
TDescriptorTable init_desc_table();
TDescriptorTable _t_desc_table;
TBrokerScanRangeParams _params;
};
Schema PushHandlerTest::create_schema() {
std::vector<TabletColumn> columns;
columns.emplace_back(OLAP_FIELD_AGGREGATION_NONE, OLAP_FIELD_TYPE_INT, true);
columns.emplace_back(OLAP_FIELD_AGGREGATION_NONE, OLAP_FIELD_TYPE_SMALLINT, true);
columns.emplace_back(OLAP_FIELD_AGGREGATION_NONE, OLAP_FIELD_TYPE_VARCHAR, true);
columns.emplace_back(OLAP_FIELD_AGGREGATION_SUM, OLAP_FIELD_TYPE_BIGINT, true);
Schema schema(columns, 3);
return schema;
}
#define TUPLE_ID_DST 0
#define TUPLE_ID_SRC 1
#define CLOMN_NUMBERS 4
#define DST_TUPLE_SLOT_ID_START 1
#define SRC_TUPLE_SLOT_ID_START 5
int PushHandlerTest::create_src_tuple(TDescriptorTable& t_desc_table, int next_slot_id) {
const char *clomnNames[] = {"k1_int", "k2_smallint", "k3_varchar", "v_bigint"};
for (int i = 0; i < CLOMN_NUMBERS; i++)
{
TSlotDescriptor slot_desc;
slot_desc.id = next_slot_id++;
slot_desc.parent = 1;
TTypeDesc type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::VARCHAR);
scalar_type.__set_len(65535);
node.__set_scalar_type(scalar_type);
type.types.push_back(node);
}
slot_desc.slotType = type;
slot_desc.columnPos = i;
slot_desc.byteOffset = i*16+8; // 8 bytes for null
slot_desc.nullIndicatorBit = i%8;
slot_desc.colName = clomnNames[i];
slot_desc.slotIdx = i + 1;
slot_desc.isMaterialized = true;
t_desc_table.slotDescriptors.push_back(slot_desc);
}
{
// TTupleDescriptor source
TTupleDescriptor t_tuple_desc;
t_tuple_desc.id = TUPLE_ID_SRC;
t_tuple_desc.byteSize = CLOMN_NUMBERS*16+8; // 8 bytes for null
t_tuple_desc.numNullBytes = 1;
t_tuple_desc.tableId = 0;
t_tuple_desc.__isset.tableId = true;
t_desc_table.tupleDescriptors.push_back(t_tuple_desc);
}
return next_slot_id;
}
int PushHandlerTest::create_dst_tuple(TDescriptorTable& t_desc_table, int next_slot_id) {
{//k1_int
TSlotDescriptor slot_desc;
slot_desc.id = next_slot_id++;
slot_desc.parent = 0;
TTypeDesc type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::INT);
node.__set_scalar_type(scalar_type);
type.types.push_back(node);
}
slot_desc.slotType = type;
slot_desc.columnPos = -1;
slot_desc.byteOffset = 4;
slot_desc.nullIndicatorByte = 0;
slot_desc.nullIndicatorBit = 1;
slot_desc.colName = "k1_int";
slot_desc.slotIdx = 1;
slot_desc.isMaterialized = true;
t_desc_table.slotDescriptors.push_back(slot_desc);
}
{// k2_smallint
TSlotDescriptor slot_desc;
slot_desc.id = next_slot_id++;
slot_desc.parent = 0;
TTypeDesc type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::SMALLINT);
node.__set_scalar_type(scalar_type);
type.types.push_back(node);
}
slot_desc.slotType = type;
slot_desc.columnPos = -1;
slot_desc.byteOffset = 2;
slot_desc.nullIndicatorByte = 0;
slot_desc.nullIndicatorBit = 0;
slot_desc.colName = "k2_smallint";
slot_desc.slotIdx = 0;
slot_desc.isMaterialized = true;
t_desc_table.slotDescriptors.push_back(slot_desc);
}
{//k3_varchar
TSlotDescriptor slot_desc;
slot_desc.id = next_slot_id++;
slot_desc.parent = 0;
TTypeDesc type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::VARCHAR);
scalar_type.__set_len(65535);
node.__set_scalar_type(scalar_type);
type.types.push_back(node);
}
slot_desc.slotType = type;
slot_desc.columnPos = -1;
slot_desc.byteOffset = 16;
slot_desc.nullIndicatorByte = 0;
slot_desc.nullIndicatorBit = 3;
slot_desc.colName = "k3_varchar";
slot_desc.slotIdx = 3;
slot_desc.isMaterialized = true;
t_desc_table.slotDescriptors.push_back(slot_desc);
}
{// v_bigint
TSlotDescriptor slot_desc;
slot_desc.id = next_slot_id++;
slot_desc.parent = 0;
TTypeDesc type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::BIGINT);
node.__set_scalar_type(scalar_type);
type.types.push_back(node);
}
slot_desc.slotType = type;
slot_desc.columnPos = -1;
slot_desc.byteOffset = 8;
slot_desc.nullIndicatorByte = 0;
slot_desc.nullIndicatorBit = 2;
slot_desc.colName = "v_bigint";
slot_desc.slotIdx = 2;
slot_desc.isMaterialized = true;
t_desc_table.slotDescriptors.push_back(slot_desc);
}
t_desc_table.__isset.slotDescriptors = true;
{
// TTupleDescriptor dest
TTupleDescriptor t_tuple_desc;
t_tuple_desc.id = TUPLE_ID_DST;
t_tuple_desc.byteSize = 32;
t_tuple_desc.numNullBytes = 1;
t_tuple_desc.tableId = 0;
t_tuple_desc.__isset.tableId = true;
t_desc_table.tupleDescriptors.push_back(t_tuple_desc);
}
return next_slot_id;
}
TDescriptorTable PushHandlerTest::init_desc_table() {
TDescriptorTable t_desc_table;
int next_slot_id = 1;
next_slot_id = create_dst_tuple(t_desc_table, next_slot_id);
next_slot_id = create_src_tuple(t_desc_table, next_slot_id);
return t_desc_table;
}
void PushHandlerTest::create_expr_info() {
TTypeDesc varchar_type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::VARCHAR);
scalar_type.__set_len(5000);
node.__set_scalar_type(scalar_type);
varchar_type.types.push_back(node);
}
// k1_int VARCHAR --> INT
{
TTypeDesc int_type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::INT);
node.__set_scalar_type(scalar_type);
int_type.types.push_back(node);
}
TExprNode cast_expr;
cast_expr.node_type = TExprNodeType::CAST_EXPR;
cast_expr.type = int_type;
cast_expr.__set_opcode(TExprOpcode::CAST);
cast_expr.__set_num_children(1);
cast_expr.__set_output_scale(-1);
cast_expr.__isset.fn = true;
cast_expr.fn.name.function_name = "casttoint";
cast_expr.fn.binary_type = TFunctionBinaryType::BUILTIN;
cast_expr.fn.arg_types.push_back(varchar_type);
cast_expr.fn.ret_type = int_type;
cast_expr.fn.has_var_args = false;
cast_expr.fn.__set_signature("casttoint(VARCHAR(*))");
cast_expr.fn.__isset.scalar_fn = true;
cast_expr.fn.scalar_fn.symbol = "doris::CastFunctions::cast_to_int_val";
TExprNode slot_ref;
slot_ref.node_type = TExprNodeType::SLOT_REF;
slot_ref.type = varchar_type;
slot_ref.num_children = 0;
slot_ref.__isset.slot_ref = true;
slot_ref.slot_ref.slot_id = SRC_TUPLE_SLOT_ID_START;
slot_ref.slot_ref.tuple_id = 1;
TExpr expr;
expr.nodes.push_back(cast_expr);
expr.nodes.push_back(slot_ref);
_params.expr_of_dest_slot.emplace(DST_TUPLE_SLOT_ID_START, expr);
_params.src_slot_ids.push_back(SRC_TUPLE_SLOT_ID_START);
}
// k2_smallint VARCHAR --> SMALLINT
{
TTypeDesc smallint_type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::SMALLINT);
node.__set_scalar_type(scalar_type);
smallint_type.types.push_back(node);
}
TExprNode cast_expr;
cast_expr.node_type = TExprNodeType::CAST_EXPR;
cast_expr.type = smallint_type;
cast_expr.__set_opcode(TExprOpcode::CAST);
cast_expr.__set_num_children(1);
cast_expr.__set_output_scale(-1);
cast_expr.__isset.fn = true;
cast_expr.fn.name.function_name = "casttosmallint";
cast_expr.fn.binary_type = TFunctionBinaryType::BUILTIN;
cast_expr.fn.arg_types.push_back(varchar_type);
cast_expr.fn.ret_type = smallint_type;
cast_expr.fn.has_var_args = false;
cast_expr.fn.__set_signature("casttosmallint(VARCHAR(*))");
cast_expr.fn.__isset.scalar_fn = true;
cast_expr.fn.scalar_fn.symbol = "doris::CastFunctions::cast_to_small_int_val";
TExprNode slot_ref;
slot_ref.node_type = TExprNodeType::SLOT_REF;
slot_ref.type = varchar_type;
slot_ref.num_children = 0;
slot_ref.__isset.slot_ref = true;
slot_ref.slot_ref.slot_id = SRC_TUPLE_SLOT_ID_START + 1;
slot_ref.slot_ref.tuple_id = 1;
TExpr expr;
expr.nodes.push_back(cast_expr);
expr.nodes.push_back(slot_ref);
_params.expr_of_dest_slot.emplace(DST_TUPLE_SLOT_ID_START + 1, expr);
_params.src_slot_ids.push_back(SRC_TUPLE_SLOT_ID_START + 1);
}
// k3_varchar VARCHAR --> VARCHAR
{
TExprNode slot_ref;
slot_ref.node_type = TExprNodeType::SLOT_REF;
slot_ref.type = varchar_type;
slot_ref.num_children = 0;
slot_ref.__isset.slot_ref = true;
slot_ref.slot_ref.slot_id = SRC_TUPLE_SLOT_ID_START + 2;
slot_ref.slot_ref.tuple_id = 1;
TExpr expr;
expr.nodes.push_back(slot_ref);
_params.expr_of_dest_slot.emplace(DST_TUPLE_SLOT_ID_START + 2, expr);
_params.src_slot_ids.push_back(SRC_TUPLE_SLOT_ID_START + 2);
}
// v_bigint VARCHAR --> BIGINT
{
TTypeDesc bigint_type;
{
TTypeNode node;
node.__set_type(TTypeNodeType::SCALAR);
TScalarType scalar_type;
scalar_type.__set_type(TPrimitiveType::BIGINT);
node.__set_scalar_type(scalar_type);
bigint_type.types.push_back(node);
}
TExprNode cast_expr;
cast_expr.node_type = TExprNodeType::CAST_EXPR;
cast_expr.type = bigint_type;
cast_expr.__set_opcode(TExprOpcode::CAST);
cast_expr.__set_num_children(1);
cast_expr.__set_output_scale(-1);
cast_expr.__isset.fn = true;
cast_expr.fn.name.function_name = "casttobigint";
cast_expr.fn.binary_type = TFunctionBinaryType::BUILTIN;
cast_expr.fn.arg_types.push_back(varchar_type);
cast_expr.fn.ret_type = bigint_type;
cast_expr.fn.has_var_args = false;
cast_expr.fn.__set_signature("casttobigint(VARCHAR(*))");
cast_expr.fn.__isset.scalar_fn = true;
cast_expr.fn.scalar_fn.symbol = "doris::CastFunctions::cast_to_big_int_val";
TExprNode slot_ref;
slot_ref.node_type = TExprNodeType::SLOT_REF;
slot_ref.type = varchar_type;
slot_ref.num_children = 0;
slot_ref.__isset.slot_ref = true;
slot_ref.slot_ref.slot_id = SRC_TUPLE_SLOT_ID_START + 3;
slot_ref.slot_ref.tuple_id = 1;
TExpr expr;
expr.nodes.push_back(cast_expr);
expr.nodes.push_back(slot_ref);
_params.expr_of_dest_slot.emplace(DST_TUPLE_SLOT_ID_START + 3, expr);
_params.src_slot_ids.push_back(SRC_TUPLE_SLOT_ID_START + 3);
}
_params.__set_dest_tuple_id(TUPLE_ID_DST);
_params.__set_src_tuple_id(TUPLE_ID_SRC);
}
void PushHandlerTest::init() {
create_expr_info();
_t_desc_table = init_desc_table();
}
TEST_F(PushHandlerTest, PushBrokerReaderNormal) {
TBrokerScanRange broker_scan_range;
broker_scan_range.params = _params;
TBrokerRangeDesc range;
range.start_offset = 0;
range.size = -1;
range.format_type = TFileFormatType::FORMAT_PARQUET;
range.splittable = false;
range.path = "./be/test/olap/test_data/push_broker_reader.parquet";
range.file_type = TFileType::FILE_LOCAL;
broker_scan_range.ranges.push_back(range);
ExecEnv::GetInstance()->_thread_mgr = new ThreadResourceMgr();
Schema schema = create_schema();
// data
// k1_int k2_smallint varchar bigint
// 0 0 a0 0
// 0 2 a1 3
// 1 4 a2 6
PushBrokerReader reader;
reader.init(&schema, broker_scan_range, _t_desc_table);
uint8_t* tuple_buf = reader.mem_pool()->allocate(schema.schema_size());
ContiguousRow row(&schema, tuple_buf);
// line 1
reader.next(&row);
ASSERT_FALSE(reader.eof());
ASSERT_EQ(0, *(int32_t*)row.cell(0).cell_ptr());
ASSERT_EQ(0, *(int16_t*)row.cell(1).cell_ptr());
ASSERT_EQ("a0", ((Slice*)row.cell(2).cell_ptr())->to_string());
ASSERT_EQ(0, *(int64_t*)row.cell(3).cell_ptr());
// line 2
reader.next(&row);
ASSERT_FALSE(reader.eof());
ASSERT_EQ(0, *(int32_t*)row.cell(0).cell_ptr());
ASSERT_EQ(2, *(int16_t*)row.cell(1).cell_ptr());
ASSERT_EQ("a1", ((Slice*)row.cell(2).cell_ptr())->to_string());
ASSERT_EQ(3, *(int64_t*)row.cell(3).cell_ptr());
// line 3
reader.next(&row);
ASSERT_FALSE(reader.eof());
ASSERT_EQ(1, *(int32_t*)row.cell(0).cell_ptr());
ASSERT_EQ(4, *(int16_t*)row.cell(1).cell_ptr());
ASSERT_EQ("a2", ((Slice*)row.cell(2).cell_ptr())->to_string());
ASSERT_EQ(6, *(int64_t*)row.cell(3).cell_ptr());
// eof
reader.next(&row);
ASSERT_TRUE(reader.eof());
reader.close();
}
} // namespace doris
int main(int argc, char **argv) {
::testing::InitGoogleTest(&argc, argv);
CpuInfo::init();
return RUN_ALL_TESTS();
}
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