Jmeter压测问题_Non HTTP response code: java.net.ConnectException

负载机压测，线程500，服务器根本无压力，负载机本身发的请求都是失败的

Sample result如下：

Thread Name: 考勤(考勤提交） 1-255
Sample Start: 2018-11-29 11:19:55 CST
Load time: 23786
Connect Time: 0
Latency: 0
Size in bytes: 11808
Sent bytes:330
Headers size in bytes: 155
Body size in bytes: 11653
Sample Count: 1
Error Count: 1
Data type ("text"|"bin"|""): 
Response code: Non HTTP response code: java.net.ConnectException
Response message: Number of samples in transaction : 2, number of failing samples : 1

Response headers:


SampleResult fields:
ContentType: 
DataEncoding: null

Request结果：

No data to display

Response data：无任何数据