在修复 ibdata/log 问题时,我不小心丢失了我的performance_schema数据库,我想创建一个新的。
mysql> SHOW VARIABLES LIKE 'perf%';
+---------------------------------------------------+---------+
| Variable_name | Value |
+---------------------------------------------------+---------+
| performance_schema | ON |
| performance_schema_events_waits_history_long_size | 10000 |
| performance_schema_events_waits_history_size | 10 |
| performance_schema_max_cond_classes | 80 |
| performance_schema_max_cond_instances | 1000 |
| performance_schema_max_file_classes | 50 |
| performance_schema_max_file_handles | 32768 |
| performance_schema_max_file_instances | 10000 |
| performance_schema_max_mutex_classes | 200 |
| performance_schema_max_mutex_instances | 1000000 |
| performance_schema_max_rwlock_classes | 30 |
| performance_schema_max_rwlock_instances | 1000000 |
| performance_schema_max_table_handles | 100000 |
| performance_schema_max_table_instances | 50000 |
| performance_schema_max_thread_classes | 50 |
| performance_schema_max_thread_instances | 1000 |
+---------------------------------------------------+---------+
16 rows in set (0.06 sec)
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这些变量对我来说似乎很好。
以下问题提出了同样的问题,但是用户得出结论,他们能够按照我在其中找不到此类说明的文档来创建它。
mysql:删除了performance_schema,是不是有问题?
有什么想法吗?
Cra*_*ein 18
在表performance_schema数据库的视图和临时表不存储数据永久收藏。该mysql_upgrade命令将恢复performance_schema数据库
从外壳
mysql_upgrade --user=root --password=password
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