问题
I just upgraded my RDS Storage from 10GB to 20GB and after a couple of days RDS says Storage full again.
Running this query in MySQL workbench against the same DB says the DB size is 43MB
SELECT table_schema "database_name",
sum( data_length + index_length ) / 1024 /
1024 "Data Base Size in MB",
sum( data_free )/ 1024 / 1024 "Free Space in MB"
FROM information_schema.TABLES
GROUP BY table_schema ;
So is there something going on with the logs that MySQL creates or the backups etc that might fill up my storage space on the production servers.
Please help.
回答1:
Its probably mysql.slow_log table which takes so much space.
You can remove slow logs by executing following sql:
CALL mysql.rds_rotate_slow_log
回答2:
There are several types of logs in mysql. Look at http://dev.mysql.com/doc/refman/5.1/en/server-logs.html. But I advice to look at slow query logs. If you have a lot of slow queries your log will increase fast. Also check option --log-queries-not-using-indexes. Maybe you log all your queries without indexes.
回答3:
Your System tablespace might be consuming the space.
You can check it using the query below:
select TABLESPACE_NAME,FILE_NAME,FREE_EXTENTS,TOTAL_EXTENTS,EXTENT_SIZE
from INFORMATION_SCHEMA.files
where TABLESPACE_NAME in ('innodb_system','innodb_temporary');
Try to reboot your database. It should solve the problem.
来源：https://stackoverflow.com/questions/7210646/rds-database-storage-runs-out-of-space