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Steve Loughran commented on HADOOP-5740: ---------------------------------------- Stack trace {{code}} 09/04/24 15:47:49 [JobTracker] INFO http.HttpServer : Jetty bound to port 50030 09/04/24 15:47:49 [JobTracker] INFO mortbay.log : jetty-6.1.14 09/04/24 15:47:49 [JobTracker] INFO mortbay.log : Extract jar:file:/home/slo/.ivy/cache/org.apache.hadoop/hadoop-core/jars/hadoop-core-0.21.0-alpha-9.jar!/webapps/job to work/Jetty_0_0_0_0_50030_job____yn7qmk/webapp 09/04/24 15:47:49 [JobTracker] ERROR / : Security Init for context failed java.lang.SecurityException: attempt to add a Permission to a readonly Permissions object at java.security.Permissions.add(Permissions.java:110) at java.security.Policy$UnsupportedEmptyCollection.add(Policy.java:790) at org.apache.jasper.compiler.JspRuntimeContext.initSecurity(JspRuntimeContext.java:564) at org.apache.jasper.compiler.JspRuntimeContext.<init>(JspRuntimeContext.java:198) at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:150) at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:431) at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:263) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:643) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1234) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:460) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:222) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.apache.hadoop.http.HttpServer.start(HttpServer.java:454) at org.apache.hadoop.mapred.JobTracker.innerStart(JobTracker.java:1482) at org.apache.hadoop.util.Service.start(Service.java:186) {{code}} > Hadoop JSP pages don't work under a security manager > ---------------------------------------------------- > > Key: HADOOP-5740 > URL: https://issues.apache.org/jira/browse/HADOOP-5740 > Project: Hadoop Core > Issue Type: Bug > Components: fs, mapred > Affects Versions: 0.21.0 > Reporter: Steve Loughran > Priority: Minor > > When you run Hadoop under a security manager that says "yes" to all security > checks, you get stack traces when Jetty tries to initialise the JSP engine. > Which implies you can't use Jasper under a security manager -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.