Details
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Bug
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Status: In Testing (View Workflow)
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Critical
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Resolution: Unresolved
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N/A
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None
Description
Now when query_response_time started distinguishing "read" and "write" statements in the scope of MDEV-33501, it includes at least some SHOW statements or SELECT ... FROM INFORMATION_SCHEMA.xxx as "write". I don't think users would expect it.
install soname 'query_response_time'; |
set global query_response_time_stats= 1; |
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flush query_response_time_write;
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show query_response_time_write where Count > 0; |
show query_response_time_write where Count > 0; |
select count(*) from information_schema.query_response_time; |
show query_response_time_write where Count > 0; |
show tables;
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show query_response_time_write where Count > 0; |
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uninstall soname 'query_response_time'; |
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bb-11.5-MDEV-33501-query-response-time bc19460f3708e34fe8c94a3b1b8738ab45b04417 |
MariaDB [test]> flush query_response_time_write;
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Query OK, 0 rows affected (0.000 sec) |
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MariaDB [test]>
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MariaDB [test]> show query_response_time_write where Count > 0; |
Empty set (0.001 sec) |
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MariaDB [test]> show query_response_time_write where Count > 0; |
+----------------+-------+----------------+ |
| Time | Count | Total | |
+----------------+-------+----------------+ |
| 0.001000 | 1 | 0.000506 |
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+----------------+-------+----------------+ |
1 row in set (0.001 sec) |
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MariaDB [test]> select count(*) from information_schema.query_response_time; |
+----------+ |
| count(*) | |
+----------+ |
| 14 |
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+----------+ |
1 row in set (0.001 sec) |
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MariaDB [test]> show query_response_time_write where Count > 0; |
+----------------+-------+----------------+ |
| Time | Count | Total | |
+----------------+-------+----------------+ |
| 0.001000 | 3 | 0.001255 |
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+----------------+-------+----------------+ |
1 row in set (0.001 sec) |
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MariaDB [test]> show tables;
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+----------------+ |
| Tables_in_test |
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+----------------+ |
| t |
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+----------------+ |
1 row in set (0.001 sec) |
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MariaDB [test]> show query_response_time_write where Count > 0; |
+----------------+-------+----------------+ |
| Time | Count | Total | |
+----------------+-------+----------------+ |
| 0.001000 | 5 | 0.002098 |
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+----------------+-------+----------------+ |
1 row in set (0.001 sec) |
Attachments
Issue Links
- is caused by
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MDEV-33501 Extend query_response_time plugin to be compatible with Percona server
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- Stalled
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