Hive Metastore Server发送元数据请求过多被拒绝

在TPCDS测试中Hive莫名其妙挂掉

经查，是MySQL最大连接尝试数设置过低，连接失败10次就无法再连接

在设置的mysql数据库里面，调整次数

MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| amon               |
| cm                 |
| hive               |
| hue                |
| mysql              |
| oozie              |
| performance_schema |
| test               |
+--------------------+
9 rows in set (0.01 sec)

MariaDB [(none)]> show variables like '%max_connect_errors%';
+--------------------+-------+
| Variable_name      | Value |
+--------------------+-------+
| max_connect_errors | 10    |
+--------------------+-------+
1 row in set (0.00 sec)

MariaDB [(none)]> set global max_connect_errors = 1000;
Query OK, 0 rows affected (0.02 sec)

MariaDB [(none)]> show variables like '%max_connect_errors%';
+--------------------+-------+
| Variable_name      | Value |
+--------------------+-------+
| max_connect_errors | 1000  |
+--------------------+-------+
1 row in set (0.00 sec)

搞定