was7服务经常短暂挂住

was 版本：was 7.0031
OS版本：suse11
问题：服务经常挂住，表现为网页访问慢。过一会又恢复正常。
systemOut.log错误日志
ync.ResultHandler$CompletionProcessingRunnable.run(ResultHandler.java:934)
        at java.lang.Thread.run(Thread.java:761)
00000043 SRTServletReq E com.ibm.ws.webcontainer.srt.SRTServletRequest parseParameters SRVE0133E: 解析参>
数时出错。{0}
                                 java.io.IOException: Async IO operation failed (3), reason: RC: 107  传输端点尚未连接
        at com.ibm.io.async.AsyncLibrary$IOExceptionCache.(AsyncLibrary.java:891)
        at com.ibm.io.async.AsyncLibrary$IOExceptionCache.get(AsyncLibrary.java:904)
        at com.ibm.io.async.AsyncLibrary.getIOException(AsyncLibrary.java:918)
        at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:705)
        at com.ibm.io.as


systemErr.log错误日志
.net.SocksSocketImpl.connect(SocksSocketImpl.java:376)
[14-3-19 11:27:36:050 CST] 00000047 SystemErr     R     at java.net.Socket.connect(Socket.java:546)
[14-3-19 11:27:36:050 CST] 00000047 SystemErr     R     at java.net.Socket.connect(Socket.java:495)

00000047 SystemErr     R java.net.ConnectException: 拒绝连接
[14-3-19 11:27:36:050 CST] 00000047 SystemErr     R     at java.net.PlainSocketImpl.socketConnect(Native Method)
[14-3-19 11:27:36:050 CST] 00000047 SystemErr     R     at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:412)
[14-3-19 11:27:36:050 CST] 00000047 SystemErr     R     at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:271)
[14-3-19 11:27:36:050 CST] 00000047 SystemErr     R     at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:258)
[14-3-19 11:27:36:050 CST] 00000047 SystemErr     R     at java收起