Jmeter压测问题_Non HTTP response code: org.apache.http.conn.ConnectTimeoutException

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） 1-134
Sample Start: 2018-11-29 11:36:04 CST
Load time: 8061
Connect Time: 0
Latency: 0
Size in bytes: 2061
Sent bytes:429
Headers size in bytes: 164
Body size in bytes: 1897
Sample Count: 1
Error Count: 1
Data type ("text"|"bin"|""): 
Response code: Non HTTP response code: org.apache.http.conn.ConnectTimeoutException
Response message: Number of samples in transaction : 2, number of failing samples : 2

Response headers:


SampleResult fields:
ContentType: 
DataEncoding: null

Request结果：

No data to display

Response data：无任何数据