EM无法访问
本帖最后由 henry 于 2015-3-10 16:04 编辑老师，您好：
今天中午EM控制台突然不能访问了，早晨还能访问。
现状描述：EM登陆界面能出来，但是登陆后点击“数据库”或“集群”，很长时间没有反应。
后台emoms.log记录有如下信息：
2015-03-10 12:04:45,166 ERROR em.console doGet.352 - Root Cause of the ServletException is
:
2015-03-10 12:04:45,167 ERROR em.console doGet.353 - java.lang.NullPointerException
java.lang.NullPointerException
at oracle.sysman.emo.rac.RacDB.outputDrillDownXML(RacDB.java:2963)
at oracle.sysman.db.rac.util.RacFlexController.handleRequest(RacFlexController.java:292)
at oracle.sysman.db.rac.RacControllerResolver.handleRequest(RacControllerResolver.java:141)
at oracle.sysman.emSDK.svlt.EMServlet.myDoGet(EMServlet.java:787)
at oracle.sysman.emSDK.svlt.EMServlet.doGet(EMServlet.java:343)
at oracle.sysman.eml.app.Console.doGet(Console.java:304)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)
at oracle.sysman.eml.app.EMRepLoginFilter.doFilter(EMRepLoginFilter.java:208)
at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:15)
at oracle.sysman.db.adm.inst.HandleRepDownFilter.doFilter(HandleRepDownFilter.java:168)
at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:17)
at oracle.sysman.eml.app.BrowserVersionFilter.doFilter(BrowserVersionFilter.java:122)
at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:17)
at oracle.sysman.emSDK.svlt.EMRedirectFilter.doFilter(EMRedirectFilter.java:102)
at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:17)
at oracle.sysman.eml.app.ContextInitFilter.doFilter(ContextInitFilter.java:357)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:621)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:889)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
at java.lang.Thread.run(Thread.java:637)
...........................
2015-03-10 15:59:53,685 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 15:59:53,685 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 16:00:08,686 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 16:00:08,686 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 16:00:08,686 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 16:00:08,686 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 16:00:23,686 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 16:00:23,687 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 16:00:23,687 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
2015-03-10 16:00:23,687 WARN em.MetricEngine _suspendMetric.725 - MetricCollectorThread attempting to suspend non-automated metric...
什么情况？？
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