ERROR 1682 (HY000)

xtrabackup 恢复数据库后,出现1682错:

root@localhost [(none)]>show global variables like '%conn%';

ERROR 1682 (HY000): Native table 'performance_schema'.'global_variables' has the wrong structure

解决办法:

[root@db210_21:51:17 /root]

#/usr/local/mysql57/bin/mysql_upgrade -S /3101/tmp/mysql.sock

Checking if update is needed.

Checking server version.

Running queries to upgrade MySQL server.

Checking system database.

mysql.columns_priv OK

mysql.db OK

mysql.engine_cost OK

mysql.event OK

mysql.func OK

mysql.general_log OK

mysql.gtid_executed OK

mysql.help_category OK

mysql.help_keyword OK

mysql.help_relation OK

mysql.help_topic OK

mysql.innodb_index_stats OK

mysql.innodb_table_stats OK

mysql.ndb_binlog_index OK

mysql.plugin OK

mysql.proc OK

mysql.procs_priv OK

mysql.proxies_priv OK

mysql.server_cost OK

mysql.servers OK

mysql.slave_master_info OK

mysql.slave_relay_log_info OK

mysql.slave_worker_info 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

The sys schema is already up to date (version 1.5.1).

Checking databases.

sys.sys_config OK

sysbench.sbtest1 OK

sysbench.sbtest10 OK

sysbench.sbtest11 OK

sysbench.sbtest12 OK

sysbench.sbtest13 OK

sysbench.sbtest14 OK

sysbench.sbtest15 OK

sysbench.sbtest16 OK

sysbench.sbtest17 OK

sysbench.sbtest18 OK

sysbench.sbtest19 OK

sysbench.sbtest2 OK

sysbench.sbtest20 OK

sysbench.sbtest3 OK

sysbench.sbtest4 OK

sysbench.sbtest5 OK

sysbench.sbtest6 OK

sysbench.sbtest7 OK

sysbench.sbtest8 OK

sysbench.sbtest9 OK

wenyz.t2 OK

Upgrade process completed successfully.

Checking if update is needed.

重启mysql后恢复正常

root@localhost [(none)]>show global variables like '%conn%';

+-----------------------------------------------+-----------------+

| Variable_name | Value |

+-----------------------------------------------+-----------------+

| character_set_connection | utf8 |

| collation_connection | utf8_general_ci |

| connect_timeout | 10 |

| disconnect_on_expired_password | ON |

| init_connect | |

| max_connect_errors | 100000 |

| max_connections | 100 |

| max_user_connections | 0 |

| performance_schema_session_connect_attrs_size | 512 |

+-----------------------------------------------+-----------------