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