mariadb/plugin/userstat/user_stats.cc
Monty 94033fcf83 MDEV-33151 Add more columns to TABLE_STATISTICS and USER STATS
Columns added to TABLE_STATISTICS
- ROWS_INSERTED, ROWS_DELETED, ROWS_UPDATED, KEY_READ_HITS and
  KEY_READ_MISSES.

Columns added to CLIENT_STATISTICS and USER_STATISTICS:
- KEY_READ_HITS and KEY_READ_MISSES.

User visible changes (except new columns):
- CLIENT_STATISTICS and USER_STATISTICS has columns KEY_READ_HITS and
  KEY_READ_MISSES added after column ROWS_UPDATED before SELECT_COMMANDS.

Other changes:
- Do not collect table statistics for system tables like index_stats
  table_stats, performance_schema, information_schema etc as the user
  has no control of these and the generate noice in the statistics.
- All row variables that are part of user_stats are moved to
  'struct rows_stats' to make it easy to clear all of them at once.
- ha_read_key_misses added to STATUS_VAR

Notes:
- userstat.result has a change of numbers of rows for handler_read_key.
  This is because use-stat-tables is now disabled for the test.
2024-05-27 12:39:04 +02:00

62 lines
2.7 KiB
C++

namespace Show {
static ST_FIELD_INFO user_stats_fields[]=
{
Column("USER",Varchar(USERNAME_CHAR_LENGTH),NOT_NULL, "User"),
Column("TOTAL_CONNECTIONS", SLong(), NOT_NULL, "Total_connections"),
Column("CONCURRENT_CONNECTIONS",SLong(), NOT_NULL, "Concurrent_connections"),
Column("CONNECTED_TIME", SLong(), NOT_NULL, "Connected_time"),
Column("BUSY_TIME", Double(MY_INT64_NUM_DECIMAL_DIGITS), NOT_NULL, "Busy_time"),
Column("CPU_TIME", Double(MY_INT64_NUM_DECIMAL_DIGITS), NOT_NULL, "Cpu_time"),
Column("BYTES_RECEIVED", SLonglong(), NOT_NULL, "Bytes_received"),
Column("BYTES_SENT", SLonglong(), NOT_NULL, "Bytes_sent"),
Column("BINLOG_BYTES_WRITTEN", SLonglong(), NOT_NULL, "Binlog_bytes_written"),
Column("ROWS_READ", SLonglong(), NOT_NULL, "Rows_read"),
Column("ROWS_SENT", SLonglong(), NOT_NULL, "Rows_sent"),
Column("ROWS_DELETED", SLonglong(), NOT_NULL, "Rows_deleted"),
Column("ROWS_INSERTED", SLonglong(), NOT_NULL, "Rows_inserted"),
Column("ROWS_UPDATED", SLonglong(), NOT_NULL, "Rows_updated"),
Column("KEY_READ_HITS", SLonglong(), NOT_NULL, "Key_read_hits"),
Column("KEY_READ_MISSES", SLonglong(), NOT_NULL, "Key_read_misses"),
Column("SELECT_COMMANDS", SLonglong(), NOT_NULL, "Select_commands"),
Column("UPDATE_COMMANDS", SLonglong(), NOT_NULL, "Update_commands"),
Column("OTHER_COMMANDS", SLonglong(), NOT_NULL, "Other_commands"),
Column("COMMIT_TRANSACTIONS", SLonglong(), NOT_NULL, "Commit_transactions"),
Column("ROLLBACK_TRANSACTIONS",SLonglong(), NOT_NULL, "Rollback_transactions"),
Column("DENIED_CONNECTIONS", SLonglong(), NOT_NULL, "Denied_connections"),
Column("LOST_CONNECTIONS", SLonglong(), NOT_NULL, "Lost_connections"),
Column("ACCESS_DENIED", SLonglong(), NOT_NULL, "Access_denied"),
Column("EMPTY_QUERIES", SLonglong(), NOT_NULL, "Empty_queries"),
Column("TOTAL_SSL_CONNECTIONS",ULonglong(), NOT_NULL, "Total_ssl_connections"),
Column("MAX_STATEMENT_TIME_EXCEEDED",SLonglong(),NOT_NULL, "Max_statement_time_exceeded"),
CEnd()
};
} // namespace Show
static int user_stats_fill(THD* thd, TABLE_LIST* tables, COND* cond)
{
if (check_global_access(thd, PROCESS_ACL, true))
return 0;
return send_user_stats(thd, &global_user_stats, tables->table);
}
static int user_stats_reset()
{
mysql_mutex_lock(&LOCK_global_user_client_stats);
free_global_user_stats();
init_global_user_stats();
mysql_mutex_unlock(&LOCK_global_user_client_stats);
return 0;
}
static int user_stats_init(void *p)
{
ST_SCHEMA_TABLE *schema= (ST_SCHEMA_TABLE *)p;
schema->fields_info= Show::user_stats_fields;
schema->fill_table= user_stats_fill;
schema->reset_table= user_stats_reset;
return 0;
}