Type:
Priority:
Resolution:
Unresolved
Affects Version/s:
10.6
danblack Thank you for the patch on MDEV-22219
10.6.0 f74704c7d963ddcd1109843a5861c6bd76409c8d (Debug)
2021-04-12 11:13:10 0 [ERROR] Incorrect unsigned value: '-1' for innodb-buffer-pool-size
2021-04-12 11:13:10 0 [Warning] option 'innodb-buffer-pool-size': unsigned value 0 adjusted to 5242880
2021-04-12 11:13:10 0 [ERROR] /test/MD120421-mariadb-10.6.0-linux-x86_64-dbg/bin/mysqld: Error while setting value '-1' to 'innodb-buffer-pool-size'
2021-04-12 11:13:10 0 [ERROR] Parsing options for plugin 'InnoDB' failed.
2021-04-12 11:13:10 0 [Note] Plugin 'FEEDBACK' is disabled.
2021-04-12 11:13:10 0 [ERROR] /test/MD120421-mariadb-10.6.0-linux-x86_64-dbg/bin/mysqld: unknown variable 'innodb-buffer-pool-size=-1'
2021-04-12 11:13:10 0 [ERROR] Aborting
Note how it seems to set the variable to 0 ("unsigned value 0" as per the warning), and subsequently adjusts it to 5242880. However, the server still aborts due to a unknown variable, whereas if one uses =0 at the command line, only this warning is given (and the server starts fine):
10.6.0 f74704c7d963ddcd1109843a5861c6bd76409c8d (Debug)
2021-04-12 11:15:42 0 [Warning] option 'innodb-buffer-pool-size': unsigned value 0 adjusted to 5242880
Proposed fix (solution 1): do not provide the "unsigned value ... adjusted" warning when negative values are used (and perhaps leave off or improve the text of the "unknown variable" error).
Solution 1:
2021-04-12 11:13:10 0 [ERROR] Incorrect unsigned value: '-1' for innodb-buffer-pool-size
2021-04-12 11:13:10 0 [ERROR] /test/MD120421-mariadb-10.6.0-linux-x86_64-dbg/bin/mysqld: Error while setting value '-1' to 'innodb-buffer-pool-size'
2021-04-12 11:13:10 0 [ERROR] Parsing options for plugin 'InnoDB' failed.
2021-04-12 11:13:10 0 [ERROR] Aborting
# Server terminates
Alternatively (solution 2): provide warning, set variable to 0, then to 5242880, then allow startup as per normal. Or, alternatively,
Solution 2:
2021-04-12 11:13:10 0 [Warning] Incorrect unsigned value: '-1' for innodb-buffer-pool-size
2021-04-12 11:13:10 0 [Warning] option 'innodb-buffer-pool-size': unsigned value 0 adjusted to 5242880
# Server starts
It would seem that solution 1 is most in line with the idea of countering negative values passed to options.
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Bug
Major