Job history server Connection reset by peer

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Job history server Connection reset by peer

听风
Hi all,

I run a hadoop job,and at last, when it connect to the job history server ,it is reseted, and throw error as following: 

" java.io.IOException: java.io.IOException: Failed on local exception: java.io.IOException: Connection reset by peer; Host Details : local host is: "my_launcher_ip"; destination host is: "job_history_server_ip":10020;  "


Can anybody give me some help?  Why?

Thx