Running Spacewalk 2.9-latest and I see errors like the following from my Spacewalk server talking to itself (not a client talking to Spacewalk). Does anyone know what causes this or how I can track it down further? I'm receiving one or two emails per day with errors like this.
The following exception occurred while executing this request: GET /rhn/common/DownloadFile.do Date:3/31/20 1:31:27 PM UTC Headers: user-agent: Red Hat Enterprise Linux (anaconda)/7.6 yum/3.4.3 host: 10.1.2.3 accept: */* Request: Local Name = 10.1.2.3 Server Name = 10.1.2.3 Requested Session Valid = false Session = org.apache.catalina.session.StandardSessionFacade@6a0a1599 [session=StandardSession[06F6021D4390F06A4317FF50C54023BC]] Protocol = http Request Locale = en_US Request Character Encoding = UTF-8 Attribute Names = rhnActiveLang, org.apache.struts.action.MESSAGE, javax.servlet.error.status_code, org.apache.struts.action.mapping.instance, requestedUri, org.apache.struts.action.MODULE, javax.servlet.jsp.jstl.fmt.timeZone.request, org.apache.struts.globals.ORIGINAL_URI_KEY, javax.servlet.error.message, javax.servlet.error.servlet_name, javax.servlet.error.request_uri, javax.servlet.error.exception, User Information: No User logged in. Exception: javax.servlet.ServletException: java.lang.NullPointerException at org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:520) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:427) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229) at com.redhat.rhn.frontend.struts.RhnRequestProcessor.process(RhnRequestProcessor.java:105) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1926) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:451) at javax.servlet.http.HttpServlet.service(HttpServlet.java:624) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.redhat.rhn.frontend.servlets.AuthFilter.doFilter(AuthFilter.java:104) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.redhat.rhn.frontend.servlets.LocalizedEnvironmentFilter.doFilter(LocalizedEnvironmentFilter.java:67) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.redhat.rhn.frontend.servlets.EnvironmentFilter.doFilter(EnvironmentFilter.java:101) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.redhat.rhn.frontend.servlets.SessionFilter.doFilter(SessionFilter.java:58) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.redhat.rhn.frontend.servlets.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:97) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NullPointerException
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