执行mysql添加权限语法,报错提示：ERROR 1558 (HY000): Column count of mysql.user is wrong. Expected 42, found 39. C

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提示报错：ERROR 1558 (HY000): Column count of mysql.user is wrong. Expected 42, found 39. Created with MySQL 50173, now running 50555. Please use mysql_upgrade to fix this error.

查找原因说说因为升级不当导致，执行以下命令即可正常执行命令

[root@localhost ~]# mysql_upgrade -uroot -p(密码)

Looking for 'mysql' as: mysql
Looking for 'mysqlcheck' as: mysqlcheck
Running 'mysqlcheck with default connection arguments
Running 'mysqlcheck with default connection arguments
cacti.cdef OK
cacti.cdef_items OK
cacti.colors OK
cacti.data_input OK
cacti.data_input_data OK
cacti.data_input_fields OK
cacti.data_local OK
cacti.data_template OK
cacti.data_template_data OK
cacti.data_template_data_rra OK
cacti.data_template_rrd OK
cacti.graph_local OK
cacti.graph_template_input OK
cacti.graph_template_input_defs OK
cacti.graph_templates OK
cacti.graph_templates_gprint OK
cacti.graph_templates_graph OK
cacti.graph_templates_item OK
cacti.graph_tree OK
cacti.graph_tree_items OK
cacti.host OK
cacti.host_graph OK
cacti.host_snmp_cache OK
cacti.host_snmp_query OK
cacti.host_template OK
cacti.host_template_graph OK
cacti.host_template_snmp_query OK
cacti.plugin_config OK
cacti.plugin_db_changes OK
cacti.plugin_hooks OK
cacti.plugin_realms OK
cacti.poller OK
cacti.poller_command OK
cacti.poller_item OK
cacti.poller_output OK
cacti.poller_reindex OK
cacti.poller_time OK
cacti.rra OK
cacti.rra_cf OK
cacti.settings OK
cacti.settings_graphs OK
cacti.settings_tree OK
cacti.snmp_query OK
cacti.snmp_query_graph OK
cacti.snmp_query_graph_rrd OK
cacti.snmp_query_graph_rrd_sv OK
cacti.snmp_query_graph_sv OK
cacti.user_auth OK
cacti.user_auth_perms OK
cacti.user_auth_realm OK
cacti.user_log OK
cacti.version OK
hi_aj.hi_tj OK
hi_db.hi_tb OK
mysql.columns_priv OK
mysql.db OK
mysql.event OK
mysql.func OK
mysql.general_log OK
mysql.help_category OK
mysql.help_keyword OK
mysql.help_relation OK
mysql.help_topic OK
mysql.host OK
mysql.ndb_binlog_index OK
mysql.plugin OK
mysql.proc OK
mysql.procs_priv OK
mysql.servers OK
mysql.slow_log OK
mysql.tables_priv OK
mysql.time_zone OK
mysql.time_zone_leap_second OK
mysql.time_zone_name OK
mysql.time_zone_transition OK
mysql.time_zone_transition_type OK
mysql.user OK
Running 'mysql_fix_privilege_tables'...
OK

再重新执行赋权语句，执行正常

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