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new a715ddc13b4 [Feature](information_schema) add processlist table for
information_schema db #32511 (#32629)
a715ddc13b4 is described below
commit a715ddc13b467da01b308828c3185c14d74de639
Author: zy-kkk <[email protected]>
AuthorDate: Thu Mar 21 19:51:11 2024 +0800
[Feature](information_schema) add processlist table for information_schema
db #32511 (#32629)
---
be/src/exec/schema_scanner.cpp | 3 +
be/src/exec/schema_scanner/schema_helper.cpp | 11 ++
be/src/exec/schema_scanner/schema_helper.h | 6 +
.../schema_scanner/schema_processlist_scanner.cpp | 148 +++++++++++++++++++++
.../schema_scanner/schema_processlist_scanner.h | 53 ++++++++
.../java/org/apache/doris/catalog/SchemaTable.java | 11 ++
6 files changed, 232 insertions(+)
diff --git a/be/src/exec/schema_scanner.cpp b/be/src/exec/schema_scanner.cpp
index 8d640341bfb..75896f1ef66 100644
--- a/be/src/exec/schema_scanner.cpp
+++ b/be/src/exec/schema_scanner.cpp
@@ -33,6 +33,7 @@
#include "exec/schema_scanner/schema_files_scanner.h"
#include "exec/schema_scanner/schema_metadata_name_ids_scanner.h"
#include "exec/schema_scanner/schema_partitions_scanner.h"
+#include "exec/schema_scanner/schema_processlist_scanner.h"
#include "exec/schema_scanner/schema_profiling_scanner.h"
#include "exec/schema_scanner/schema_rowsets_scanner.h"
#include "exec/schema_scanner/schema_schema_privileges_scanner.h"
@@ -148,6 +149,8 @@ std::unique_ptr<SchemaScanner>
SchemaScanner::create(TSchemaTableType::type type
return SchemaMetadataNameIdsScanner::create_unique();
case TSchemaTableType::SCH_PROFILING:
return SchemaProfilingScanner::create_unique();
+ case TSchemaTableType::SCH_PROCESSLIST:
+ return SchemaProcessListScanner::create_unique();
default:
return SchemaDummyScanner::create_unique();
break;
diff --git a/be/src/exec/schema_scanner/schema_helper.cpp
b/be/src/exec/schema_scanner/schema_helper.cpp
index b1d6900e0f5..965dc7a6eb4 100644
--- a/be/src/exec/schema_scanner/schema_helper.cpp
+++ b/be/src/exec/schema_scanner/schema_helper.cpp
@@ -35,6 +35,8 @@ class TListPrivilegesResult;
class TListTableStatusResult;
class TShowVariableRequest;
class TShowVariableResult;
+class TShowProcessListRequest;
+class TShowProcessListResult;
Status SchemaHelper::get_db_names(const std::string& ip, const int32_t port,
const TGetDbsParams& request, TGetDbsResult*
result) {
@@ -123,4 +125,13 @@ std::string SchemaHelper::extract_db_name(const
std::string& full_name) {
return std::string(full_name.c_str() + found, full_name.size() - found);
}
+Status SchemaHelper::show_process_list(const std::string& ip, const int32_t
port,
+ const TShowProcessListRequest& request,
+ TShowProcessListResult* result) {
+ return ThriftRpcHelper::rpc<FrontendServiceClient>(
+ ip, port, [&request, &result](FrontendServiceConnection& client) {
+ client->showProcessList(*result, request);
+ });
+}
+
} // namespace doris
diff --git a/be/src/exec/schema_scanner/schema_helper.h
b/be/src/exec/schema_scanner/schema_helper.h
index c0143136115..5602e3c005f 100644
--- a/be/src/exec/schema_scanner/schema_helper.h
+++ b/be/src/exec/schema_scanner/schema_helper.h
@@ -37,6 +37,8 @@ class TListTableStatusResult;
class TListTableMetadataNameIdsResult;
class TShowVariableRequest;
class TShowVariableResult;
+class TShowProcessListRequest;
+class TShowProcessListResult;
// this class is a helper for getting schema info from FE
class SchemaHelper {
@@ -76,6 +78,10 @@ public:
TListPrivilegesResult*
privileges_result);
static std::string extract_db_name(const std::string& full_name);
+
+ static Status show_process_list(const std::string& ip, const int32_t port,
+ const TShowProcessListRequest& request,
+ TShowProcessListResult* result);
};
} // namespace doris
diff --git a/be/src/exec/schema_scanner/schema_processlist_scanner.cpp
b/be/src/exec/schema_scanner/schema_processlist_scanner.cpp
new file mode 100644
index 00000000000..d9cbd0f3fb7
--- /dev/null
+++ b/be/src/exec/schema_scanner/schema_processlist_scanner.cpp
@@ -0,0 +1,148 @@
+// 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 "exec/schema_scanner/schema_processlist_scanner.h"
+
+#include <gen_cpp/FrontendService_types.h>
+
+#include <vector>
+
+#include "exec/schema_scanner/schema_helper.h"
+#include "runtime/runtime_state.h"
+#include "vec/common/string_ref.h"
+#include "vec/core/block.h"
+#include "vec/data_types/data_type_factory.hpp"
+
+namespace doris {
+
+std::vector<SchemaScanner::ColumnDesc>
SchemaProcessListScanner::_s_processlist_columns = {
+ {"ID", TYPE_LARGEINT, sizeof(int128_t), false},
+ {"USER", TYPE_VARCHAR, sizeof(StringRef), false},
+ {"HOST", TYPE_VARCHAR, sizeof(StringRef), false},
+ {"CATALOG", TYPE_VARCHAR, sizeof(StringRef), false},
+ {"DB", TYPE_VARCHAR, sizeof(StringRef), false},
+ {"COMMAND", TYPE_VARCHAR, sizeof(StringRef), false},
+ {"TIME", TYPE_INT, sizeof(int32_t), false},
+ {"STATE", TYPE_VARCHAR, sizeof(StringRef), false},
+ {"INFO", TYPE_VARCHAR, sizeof(StringRef), false}};
+
+SchemaProcessListScanner::SchemaProcessListScanner()
+ : SchemaScanner(_s_processlist_columns,
TSchemaTableType::SCH_PROCESSLIST) {}
+
+SchemaProcessListScanner::~SchemaProcessListScanner() = default;
+
+Status SchemaProcessListScanner::start(RuntimeState* state) {
+ TShowProcessListRequest request;
+ request.__set_show_full_sql(true);
+
+ RETURN_IF_ERROR(SchemaHelper::show_process_list(*(_param->ip),
_param->port, request,
+ &_process_list_result));
+
+ return Status::OK();
+}
+
+Status SchemaProcessListScanner::get_next_block(vectorized::Block* block,
bool* eos) {
+ if (!_is_init) {
+ return Status::InternalError("call this before initial.");
+ }
+ if (block == nullptr || eos == nullptr) {
+ return Status::InternalError("invalid parameter.");
+ }
+
+ *eos = true;
+ if (_process_list_result.process_list.empty()) {
+ return Status::OK();
+ }
+
+ return _fill_block_impl(block);
+}
+
+Status SchemaProcessListScanner::_fill_block_impl(vectorized::Block* block) {
+ SCOPED_TIMER(_fill_block_timer);
+
+ const auto& process_list = _process_list_result.process_list;
+ size_t row_num = process_list.size();
+ if (row_num == 0) {
+ return Status::OK();
+ }
+
+ for (size_t col_idx = 0; col_idx < _s_processlist_columns.size();
++col_idx) {
+ std::vector<StringRef> str_refs(row_num);
+ std::vector<int128_t> int_vals(row_num);
+ std::vector<void*> datas(row_num);
+ std::vector<std::string> column_values(
+ row_num); // Store the strings to ensure their lifetime
+
+ for (size_t row_idx = 0; row_idx < row_num; ++row_idx) {
+ const auto& row = process_list[row_idx];
+
+ // Fetch and store the column value based on its index
+ std::string& column_value =
+ column_values[row_idx]; // Reference to the actual string
in the vector
+
+ switch (col_idx) {
+ case 0:
+ column_value = row.size() > 1 ? row[1] : "";
+ break; // ID
+ case 1:
+ column_value = row.size() > 2 ? row[2] : "";
+ break; // USER
+ case 2:
+ column_value = row.size() > 3 ? row[3] : "";
+ break; // HOST
+ case 3:
+ column_value = row.size() > 5 ? row[5] : "";
+ break; // CATALOG
+ case 4:
+ column_value = row.size() > 6 ? row[6] : "";
+ break; // DB
+ case 5:
+ column_value = row.size() > 7 ? row[7] : "";
+ break; // COMMAND
+ case 6:
+ column_value = row.size() > 8 ? row[8] : "";
+ break; // TIME
+ case 7:
+ column_value = row.size() > 9 ? row[9] : "";
+ break; // STATE
+ case 8:
+ column_value = row.size() > 11 ? row[11] : "";
+ break; // INFO
+ default:
+ column_value = "";
+ break;
+ }
+
+ if (_s_processlist_columns[col_idx].type == TYPE_LARGEINT ||
+ _s_processlist_columns[col_idx].type == TYPE_INT) {
+ int128_t val = !column_value.empty() ?
std::stoll(column_value) : 0;
+ int_vals[row_idx] = val;
+ datas[row_idx] = &int_vals[row_idx];
+ } else {
+ str_refs[row_idx] =
+ StringRef(column_values[row_idx].data(),
column_values[row_idx].size());
+ datas[row_idx] = &str_refs[row_idx];
+ }
+ }
+
+ RETURN_IF_ERROR(fill_dest_column_for_range(block, col_idx, datas));
+ }
+
+ return Status::OK();
+}
+
+} // namespace doris
diff --git a/be/src/exec/schema_scanner/schema_processlist_scanner.h
b/be/src/exec/schema_scanner/schema_processlist_scanner.h
new file mode 100644
index 00000000000..8aae87e1ef6
--- /dev/null
+++ b/be/src/exec/schema_scanner/schema_processlist_scanner.h
@@ -0,0 +1,53 @@
+// 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.
+
+#pragma once
+
+#include <memory>
+#include <vector>
+
+#include "common/status.h"
+#include "exec/schema_scanner.h"
+#include "gen_cpp/FrontendService_types.h"
+
+namespace doris {
+
+class RuntimeState;
+
+namespace vectorized {
+class Block;
+}
+
+class SchemaProcessListScanner : public SchemaScanner {
+ ENABLE_FACTORY_CREATOR(SchemaProcessListScanner);
+
+public:
+ SchemaProcessListScanner();
+ ~SchemaProcessListScanner() override;
+
+ Status start(RuntimeState* state) override;
+ Status get_next_block(vectorized::Block* block, bool* eos) override;
+
+ static std::vector<SchemaScanner::ColumnDesc> _s_processlist_columns;
+
+private:
+ Status _fill_block_impl(vectorized::Block* block);
+
+ TShowProcessListResult _process_list_result;
+};
+
+} // namespace doris
diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/SchemaTable.java
b/fe/fe-core/src/main/java/org/apache/doris/catalog/SchemaTable.java
index d52fdf3bbe9..164495c4896 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/SchemaTable.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/SchemaTable.java
@@ -445,6 +445,17 @@ public class SchemaTable extends Table {
.column("SOURCE_FILE",
ScalarType.createVarchar(20))
.column("SOURCE_LINE",
ScalarType.createType(PrimitiveType.INT))
.build()))
+ .put("processlist", new SchemaTable(SystemIdGenerator.getNextId(),
"processlist", TableType.SCHEMA,
+ builder().column("ID",
ScalarType.createType(PrimitiveType.LARGEINT))
+ .column("USER", ScalarType.createVarchar(32))
+ .column("HOST", ScalarType.createVarchar(261))
+ .column("CATALOG", ScalarType.createVarchar(64))
+ .column("DB", ScalarType.createVarchar(64))
+ .column("COMMAND", ScalarType.createVarchar(16))
+ .column("TIME",
ScalarType.createType(PrimitiveType.INT))
+ .column("STATE", ScalarType.createVarchar(64))
+ .column("INFO",
ScalarType.createVarchar(ScalarType.MAX_VARCHAR_LENGTH))
+ .build()))
.build();
protected SchemaTable(long id, String name, TableType type, List<Column>
baseSchema) {
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