求教一个 socket 套接字问题

[biexiawo]

2016-11-09,00:00:30 ERROR Thread-20389 处理失败 [e-mail]_sentTime_1478591154_emailID_1tbi5RIcE1Uw4i4bRwAAsN.html at java.net.SocketException: Broken pipe at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:113) at java.net.SocketOutputStream.write(SocketOutputStream.java:147) at net.mikesu.fastdfs.command.AbstractCmd.request(AbstractCmd.java:19) at net.mikesu.fastdfs.command.AbstractCmd.request(AbstractCmd.java:24) at net.mikesu.fastdfs.command.UploadCmd.exec(UploadCmd.java:19) at net.mikesu.fastdfs.client.StorageClientImpl.upload(StorageClientImpl.java:71) at net.mikesu.fastdfs.FastdfsClientImpl.upload(FastdfsClientImpl.java:72) at net.mikesu.fastdfs.FastdfsClientImpl.upload(FastdfsClientImpl.java:278) at net.mikesu.fastdfs.FastdfsClientImpl.upload(FastdfsClientImpl.java:274) at org.emailresume.common.DFSHelper.uploadFile(DFSHelper.java:22) at org.emailresume.ParseTask.run(ParseTask.java:67) at java.lang.Thread.run(Thread.java:745) 该程序之前已经在服务器上跑了一段时间了没有出现过问题，但是最近突然报出了这个错误，查看了下代码估计问题是出现在上传 fastdfs 时，各位有遇到过的帮帮忙，谢谢！