1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
#include <Access/ContextAccess.h>
#include <Columns/ColumnString.h>
#include <DataTypes/DataTypeArray.h>
#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypeUUID.h>
#include <DataTypes/DataTypesNumber.h>
#include <Databases/IDatabase.h>
#include <Storages/StorageReplicatedMergeTree.h>
#include <Storages/System/StorageSystemPartMovesBetweenShards.h>
#include <Storages/VirtualColumnUtils.h>
#include <Common/typeid_cast.h>
namespace DB
{
NamesAndTypesList StorageSystemPartMovesBetweenShards::getNamesAndTypes()
{
return {
/// Table properties.
{ "database", std::make_shared<DataTypeString>() },
{ "table", std::make_shared<DataTypeString>() },
/// Constant element properties.
{ "task_name", std::make_shared<DataTypeString>() },
{ "task_uuid", std::make_shared<DataTypeUUID>() },
{ "create_time", std::make_shared<DataTypeDateTime>() },
{ "part_name", std::make_shared<DataTypeString>() },
{ "part_uuid", std::make_shared<DataTypeUUID>() },
{ "to_shard", std::make_shared<DataTypeString>() },
{ "dst_part_name", std::make_shared<DataTypeString>() },
/// Processing status of item.
{ "update_time", std::make_shared<DataTypeDateTime>() },
{ "state", std::make_shared<DataTypeString>() },
{ "rollback", std::make_shared<DataTypeUInt8>() },
{ "num_tries", std::make_shared<DataTypeUInt32>() },
{ "last_exception", std::make_shared<DataTypeString>() },
};
}
void StorageSystemPartMovesBetweenShards::fillData(MutableColumns & res_columns, ContextPtr context, const SelectQueryInfo & query_info) const
{
const auto access = context->getAccess();
const bool check_access_for_databases = !access->isGranted(AccessType::SHOW_TABLES);
std::map<String, std::map<String, StoragePtr>> replicated_tables;
for (const auto & db : DatabaseCatalog::instance().getDatabases())
{
/// Check if database can contain replicated tables
if (!db.second->canContainMergeTreeTables())
continue;
const bool check_access_for_tables = check_access_for_databases && !access->isGranted(AccessType::SHOW_TABLES, db.first);
for (auto iterator = db.second->getTablesIterator(context); iterator->isValid(); iterator->next())
{
const auto & table = iterator->table();
if (!table)
continue;
if (!dynamic_cast<const StorageReplicatedMergeTree *>(table.get()))
continue;
if (check_access_for_tables && !access->isGranted(AccessType::SHOW_TABLES, db.first, iterator->name()))
continue;
replicated_tables[db.first][iterator->name()] = table;
}
}
MutableColumnPtr col_database_mut = ColumnString::create();
MutableColumnPtr col_table_mut = ColumnString::create();
for (auto & db : replicated_tables)
{
for (auto & table : db.second)
{
col_database_mut->insert(db.first);
col_table_mut->insert(table.first);
}
}
ColumnPtr col_database_to_filter = std::move(col_database_mut);
ColumnPtr col_table_to_filter = std::move(col_table_mut);
/// Determine what tables are needed by the conditions in the query.
{
Block filtered_block
{
{ col_database_to_filter, std::make_shared<DataTypeString>(), "database" },
{ col_table_to_filter, std::make_shared<DataTypeString>(), "table" },
};
VirtualColumnUtils::filterBlockWithQuery(query_info.query, filtered_block, context);
if (!filtered_block.rows())
return;
col_database_to_filter = filtered_block.getByName("database").column;
col_table_to_filter = filtered_block.getByName("table").column;
}
for (size_t i = 0, tables_size = col_database_to_filter->size(); i < tables_size; ++i)
{
String database = (*col_database_to_filter)[i].safeGet<const String &>();
String table = (*col_table_to_filter)[i].safeGet<const String &>();
auto moves = dynamic_cast<StorageReplicatedMergeTree &>(*replicated_tables[database][table]).getPartMovesBetweenShardsEntries();
for (auto & entry : moves)
{
size_t col_num = 0;
/// Table properties.
res_columns[col_num++]->insert(database);
res_columns[col_num++]->insert(table);
/// Constant element properties.
res_columns[col_num++]->insert(entry.znode_name);
res_columns[col_num++]->insert(entry.task_uuid);
res_columns[col_num++]->insert(entry.create_time);
res_columns[col_num++]->insert(entry.part_name);
res_columns[col_num++]->insert(entry.part_uuid);
res_columns[col_num++]->insert(entry.to_shard);
res_columns[col_num++]->insert(entry.dst_part_name);
/// Processing status of item.
res_columns[col_num++]->insert(entry.update_time);
res_columns[col_num++]->insert(entry.state.toString());
res_columns[col_num++]->insert(entry.rollback);
res_columns[col_num++]->insert(entry.num_tries);
res_columns[col_num++]->insert(entry.last_exception_msg);
}
}
}
}
|
