ProxySQL 监控和统计

很多有价值的统计数据在stats和monitor库中.

admin@127.0.0.1 [(none)]>SHOW TABLES FROM stats;
+--------------------------------------+
| tables                               |
+--------------------------------------+
| global_variables                     |
| stats_memory_metrics                 |
| stats_mysql_commands_counters        |
| stats_mysql_connection_pool          |
| stats_mysql_connection_pool_reset    |
| stats_mysql_global                   |
| stats_mysql_prepared_statements_info |
| stats_mysql_processlist              |
| stats_mysql_query_digest             |
| stats_mysql_query_digest_reset       |
| stats_mysql_query_rules              |
| stats_mysql_users                    |
| stats_proxysql_servers_checksums     |
| stats_proxysql_servers_metrics       |
| stats_proxysql_servers_status        |
+--------------------------------------+
15 rows in set (0.00 sec)
admin@127.0.0.1 [(none)]>show tables from monitor;
+------------------------------------+
| tables                             |
+------------------------------------+
| mysql_server_connect_log           |
| mysql_server_group_replication_log |
| mysql_server_ping_log              |
| mysql_server_read_only_log         |
| mysql_server_replication_lag_log   |
+------------------------------------+
5 rows in set (0.00 sec)

• 查看后端mysql server的连接情况

admin@127.0.0.1 [(none)]>SELECT * FROM monitor.mysql_server_connect_log ORDER BY time_start_us DESC LIMIT 10;
+----------+------+------------------+-------------------------+---------------+
| hostname | port | time_start_us    | connect_success_time_us | connect_error |
+----------+------+------------------+-------------------------+---------------+
| db212    | 3507 | 1535188682629466 | 1516                    | NULL          |
| db210    | 3507 | 1535188682031063 | 1192                    | NULL          |
| db211    | 3507 | 1535188681432956 | 2308                    | NULL          |
| db211    | 3507 | 1535188622982831 | 1132                    | NULL          |
| db212    | 3507 | 1535188622207688 | 1439                    | NULL          |
| db210    | 3507 | 1535188621432849 | 1078                    | NULL          |
| db210    | 3507 | 1535188562867433 | 642                     | NULL          |
| db212    | 3507 | 1535188562150665 | 1353                    | NULL          |
| db211    | 3507 | 1535188561432802 | 1362                    | NULL          |
| db211    | 3507 | 1535188503010756 | 1071                    | NULL          |
+----------+------+------------------+-------------------------+---------------+
10 rows in set (0.00 sec)

• 查看后端mysql server的PING情况

admin@127.0.0.1 [(none)]>SELECT * FROM monitor.mysql_server_ping_log ORDER BY time_start_us DESC LIMIT 10;
+----------+------+------------------+----------------------+------------+
| hostname | port | time_start_us    | ping_success_time_us | ping_error |
+----------+------+------------------+----------------------+------------+
| db211    | 3507 | 1535188751756034 | 231                  | NULL       |
| db212    | 3507 | 1535188751635806 | 179                  | NULL       |
| db210    | 3507 | 1535188751517985 | 209                  | NULL       |
| db211    | 3507 | 1535188741749812 | 191                  | NULL       |
| db212    | 3507 | 1535188741632588 | 156                  | NULL       |
| db210    | 3507 | 1535188741515156 | 71                   | NULL       |
| db211    | 3507 | 1535188731716039 | 191                  | NULL       |
| db210    | 3507 | 1535188731615626 | 81                   | NULL       |
| db212    | 3507 | 1535188731515197 | 265                  | NULL       |
| db211    | 3507 | 1535188721661829 | 203                  | NULL       |
+----------+------+------------------+----------------------+------------+
10 rows in set (0.00 sec)

• 查看执行的命令统计情况

admin@127.0.0.1 [(none)]>SELECT Command,Total_Time_us,Total_cnt,cnt_100us,cnt_1ms,cnt_INFs FROM stats_mysql_commands_counters WHERE Total_cnt;
+---------+---------------+-----------+-----------+---------+----------+
| Command | Total_Time_us | Total_cnt | cnt_100us | cnt_1ms | cnt_INFs |
+---------+---------------+-----------+-----------+---------+----------+
| BEGIN   | 22310507194   | 1585457   | 51        | 129945  | 2113     |
| COMMIT  | 1060260349    | 826562    | 4233      | 7349    | 0        |
| DELETE  | 22825509825   | 1057796   | 8455      | 227783  | 52       |
| INSERT  | 179673106152  | 20885757  | 8469      | 129291  | 0        |
| SELECT  | 8888256088    | 22149881  | 56184     | 3228537 | 1        |
| UPDATE  | 134309337044  | 3174979   | 16886     | 547909  | 320      |
| SHOW    | 6485          | 5         | 0         | 1       | 0        |
+---------+---------------+-----------+-----------+---------+----------+
7 rows in set (0.00 sec)

• 查看执行过的SQL语句统计情况

admin@127.0.0.1 [(none)]>SELECT hostgroup,schemaname,digest,digest_text,count_star,sum_time FROM stats_mysql_query_digest ORDER BY sum_time DESC;
+-----------+--------------------+--------------------+--------------------------------------------------------------------+------------+-------------+
| hostgroup | schemaname         | digest             | digest_text                                                        | count_star | sum_time    |
+-----------+--------------------+--------------------+--------------------------------------------------------------------+------------+-------------+
| 10        | sysbench_testdata  | 0xD284EA74C062DAA9 | INSERT INTO sbtest2 (id, k, c, pad) VALUES (?, ?, ?, ?)            | 10442025   | 89906803469 |
| 10        | sysbench_testdata  | 0xE52A0A0210634DAC | INSERT INTO sbtest1 (id, k, c, pad) VALUES (?, ?, ?, ?)            | 10443732   | 89766302683 |
| 10        | sysbench_testdata  | 0x16ADA60275E5EFAA | UPDATE sbtest2 SET k=k+? WHERE id=?                                | 794387     | 46930347033 |
| 10        | sysbench_testdata  | 0xC198E52BCCB481C7 | UPDATE sbtest1 SET k=k+? WHERE id=?                                | 793183     | 46790103859 |
| 10        | sysbench_testdata  | 0xFAD1519E4760CBDE | BEGIN                                                              | 1587889    | 46631879754 |
| 10        | sysbench_testdata  | 0xFB239BC95A23CA36 | UPDATE sbtest1 SET c=? WHERE id=?                                  | 794260     | 20383945734 |
| 10        | sysbench_testdata  | 0xC2E5FCE49337737D | UPDATE sbtest2 SET c=? WHERE id=?                                  | 793149     | 20204940418 |
| 10        | sysbench_testdata  | 0x713A0DB06FCE81E2 | DELETE FROM sbtest2 WHERE id=?                                     | 528677     | 11583020333 |
| 10        | sysbench_testdata  | 0xE365BEB555319B9E | DELETE FROM sbtest1 WHERE id=?                                     | 529119     | 11242489492 |
| 11        | sysbench_testdata  | 0x9AF59B998A3688ED | SELECT c FROM sbtest2 WHERE id=?                                   | 7907798    | 2336353929  |
| 11        | sysbench_testdata  | 0xBF001A0C13781C1D | SELECT c FROM sbtest1 WHERE id=?                                   | 7891798    | 2334872578  |
| 10        | sysbench_testdata  | 0x695FBF255DBEB0DD | COMMIT                                                             | 826562     | 1060260349  |
| 11        | sysbench_testdata  | 0x4AC6CC3E8E66E2A5 | SELECT DISTINCT c FROM sbtest2 WHERE id BETWEEN ? AND ? ORDER BY c | 794166     | 952405491   |
| 11        | sysbench_testdata  | 0xC19480748AE79B4B | SELECT DISTINCT c FROM sbtest1 WHERE id BETWEEN ? AND ? ORDER BY c | 793404     | 948846057   |
| 11        | sysbench_testdata  | 0xAC80A5EA0101522E | SELECT c FROM sbtest1 WHERE id BETWEEN ? AND ? ORDER BY c          | 795040     | 478417319   |
| 11        | sysbench_testdata  | 0x2BD5CA9A9C3B517D | SELECT c FROM sbtest2 WHERE id BETWEEN ? AND ? ORDER BY c          | 792530     | 475211391   |
| 11        | sysbench_testdata  | 0x381AAD21F4326865 | SELECT c FROM sbtest2 WHERE id BETWEEN ? AND ?                     | 794962     | 361663394   |
| 11        | sysbench_testdata  | 0x290B92FD743826DA | SELECT c FROM sbtest1 WHERE id BETWEEN ? AND ?                     | 792608     | 361139683   |
| 11        | sysbench_testdata  | 0xDBF868B2AA296BC5 | SELECT SUM(k) FROM sbtest1 WHERE id BETWEEN ? AND ?                | 793851     | 315185628   |
| 11        | sysbench_testdata  | 0x106724E15CC958CA | SELECT SUM(k) FROM sbtest2 WHERE id BETWEEN ? AND ?                | 793719     | 314158192   |
| 11        | information_schema | 0x26CC5CB63FE90834 | select * from wenyz.t2                                             | 2          | 10001358    |
| 10        | information_schema | 0x02033E45904D3DF0 | show databases                                                     | 5          | 6485        |
| 11        | information_schema | 0x1CA8F88B407B7239 | select * from t2                                                   | 1          | 1068        |
| 10        | information_schema | 0x226CD90D52A2BA0B | select @@version_comment limit ?                                   | 1          | 0           |
| 10        | information_schema | 0x594F2C744B698066 | select USER()                                                      | 1          | 0           |
+-----------+--------------------+--------------------+--------------------------------------------------------------------+------------+-------------+
25 rows in set (0.00 sec)