tomcat:内存溢出问题

　　现象描述：

　　TOMCAT进程还在，但无响应。导致WEB页面无法浏览。。。。

　　查看日志：

　　/usr/local/Tomcat_Front/logs/localhost.2007-07-01.log

　　#vi localhost.2007-07-01.log

　　查询关键字“OutOfMemoryError”，结果如下：

　　2007-7-1 22:47:22 org.apache.catalina.core.ApplicationDispatcher invoke

　　严重: Servlet.service() for servlet 51auto threw exception

　　java.lang.OutOfMemoryError: Java heap space

　　2007-7-1 22:47:22 org.apache.catalina.core.StandardWrapperValve invoke

　　严重: Servlet.service() for servlet default threw exception

　　java.lang.OutOfMemoryError: Java heap space

　　/OutOfMemoryError

　　at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)

　　at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)

　　at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)

　　at com.jiuxing.website.control.Control.service(Control.java:54)

　　at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

　　at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)

　　at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

　　at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)

　　at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)

　　at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)

　　at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)

　　at org.tuckey.web.filters.urlrewrite.RewrittenUrl.doRewrite(RewrittenUrl.java:176)

　　at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:728)

　　at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

　　at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

　　at com.jiuxing.website.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:87)

　　at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

　　at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

　　at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

　　at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)

　　at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

　　at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

　　at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

　　at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

　　at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)

　　at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)

　　at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:744)

　　at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:674)

　　at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:866)

　　at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)

　　at java.lang.Thread.run(Thread.java:595)

　　暂时解决方法：

　　加大-Xmx512m为-Xmx1024m。