Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Not a Bug
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10.4
Description
Upgraded to MariaDB 10.4 (from 10.3) on a new server. Used MariaBackup to restore, and then ran mysql_upgrade.
Everything loads well, MariaDB works, but I get the following warning:
[root@server ~]# mysqld --verbose --help 1>/dev/null
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2020-05-20 0:56:22 0 [Note] Plugin 'FEEDBACK' is disabled.
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2020-05-20 0:56:22 0 [Warning] Could not open mysql.plugin table. Some options may be missing from the help text
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I'm just worried that this might cause a problem, even though it's just a warning.
By searching other people having this warning (sometimes as an 'error'), all of them said that it was solved by deleting the datadir and restarting, which is obviously not what I want...
This doesn't seem to be a permission problem, as the table is well visible (but empty):
[root@server ~]# mysql -e "show create table mysql.plugin"
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| Table | Create Table |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| plugin | CREATE TABLE `plugin` (
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`name` varchar(64) NOT NULL DEFAULT '',
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`dl` varchar(128) NOT NULL DEFAULT '',
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PRIMARY KEY (`name`)
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) ENGINE=Aria DEFAULT CHARSET=utf8 PAGE_CHECKSUM=1 TRANSACTIONAL=1 COMMENT='MySQL plugins' |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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[root@server ~]# mysql -e "select count(*) from mysql.plugin"
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+----------+
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| count(*) |
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+----------+
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| 0 |
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+----------+
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[root@server ~]#
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How can I fix the warning? Or... is this just a false positive that can safely be ignored?