[root@ip-10-0-7-160 ~]# aws rds describe-db-log-files --db-instance-identifier wp-hiroki --region ap-northeast-1
{
   "DescribeDBLogFiles": [
       {
           "LastWritten": 1519170900000,
           "LogFileName": "error/mysql-error-running.log",
           "Size": 0
       },
       {
           "LastWritten": 1519196700000,
           "LogFileName": "error/mysql-error.log",
           "Size": 0
       },
       {
           "LastWritten": 1493923004000,
           "LogFileName": "mysqlUpgrade",
           "Size": 3593
       }
   ]
}