RDS sdk监控的问题

我按照https://github.com/XWJR-Ops/zabbix-RDS-monitor，实现zabbix监控RDS,但是在zabbix日志里面总是报如下错误，请问是什么原因。 其实网络是通的。

[root@zabbix-server zabbix]# ping rds.aliyuncs.com

PING rds.aliyuncs.com (140.205.155.65) 56(84) bytes of data. 64 bytes from 140.205.155.65 (140.205.155.65): icmp_seq=1 ttl=47 time=30.2 ms 64 bytes from 140.205.155.65 (140.205.155.65): icmp_seq=2 ttl=47 time=30.2 ms

[root@zabbix-server zabbix]# telnet rds.aliyuncs.com 80

Trying 140.205.155.65... Connected to rds.aliyuncs.com.

Escape character is '^]'

报错日志如下：

aliyunsdkcore.acs_exception.exceptions.ClientException: SDK.HttpError HTTPConnectionPool(host='rds.aliyuncs.com', port=80): Max retries exceeded with url: /?SignatureVersion=1.0&Key=MySQL_IOPS&Format=JSON&Timestamp=2020-08-07T03%3A08%3A30Z&RegionId=cn-beijing&DBInstanceId=rm-2ze3067sm1r90d092&AccessKeyId=LTAI4GCXzLB7KvqJwCY1NSLC&SignatureMethod=HMAC-SHA1&Version=2014-08-15&StartTime=2020-08-07T02%3A43Z&Signature=DZxioWepOxiZJtgr3cURELh8wZ8%3D&Action=DescribeDBInstancePerformance&SignatureNonce=74fcf3da-7335-554f-b0e7-0eedc3bb4c71&EndTime=2020-08-07T03%3A08Z&SignatureType= (Caused by NewConnectionError('<aliyunsdkcore.vendored.requests.packages.urllib3.connection.HTTPConnection object at 0x7f201fd8add0>: Failed to establish a new connection: [Errno -2] Name or service not known',))" of type "string" is not suitable for value type "Numeric (float)"