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Uma Maheswara Rao G commented on HADOOP-7688: --------------------------------------------- 2011-11-04 10:55:04,403 INFO http.HttpServer (HttpServer.java:start(647)) - Port returned by webServer.getConnectors()[0].getLocalPort() before open() is -1. Opening the listener on 0 2011-11-04 10:55:04,434 INFO http.HttpServer (HttpServer.java:start(652)) - listener.getLocalPort() returned 3356 webServer.getConnectors()[0].getLocalPort() returned 3356 2011-11-04 10:55:04,434 INFO http.HttpServer (HttpServer.java:start(685)) - Jetty bound to port 3356 2011-11-04 10:55:04,434 INFO mortbay.log (Slf4jLog.java:info(67)) - jetty-6.1.26 2011-11-04 10:55:04,668 WARN mortbay.log (Slf4jLog.java:warn(76)) - failed recording: javax.servlet.ServletException 2011-11-04 10:55:04,668 WARN mortbay.log (Slf4jLog.java:warn(89)) - Failed startup of context org.mortbay.jetty.webapp.WebAppContext@10045eb{/,file:/E:/Trunk-Common/hadoop-common-project/hadoop-common/target/test-classes/webapps/test} javax.servlet.ServletException at org.apache.hadoop.http.TestGlobalFilter$RecordingFilter.init(TestGlobalFilter.java:51) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.apache.hadoop.http.HttpServer.start(HttpServer.java:686) at org.apache.hadoop.http.TestGlobalFilter.testServletFilter(TestGlobalFilter.java:108) ......... ........ 2011-11-04 10:55:04,700 WARN mortbay.log (Slf4jLog.java:warn(76)) - failed recording: javax.servlet.ServletException 2011-11-04 10:55:04,700 WARN mortbay.log (Slf4jLog.java:warn(76)) - failed org.mortbay.jetty.servlet.Context@1cdeff{/static,file:/E:/Trunk-Common/hadoop-common-project/hadoop-common/target/test-classes/webapps/static/}: javax.servlet.ServletException 2011-11-04 10:55:04,700 WARN mortbay.log (Slf4jLog.java:warn(76)) - failed ContextHandlerCollection@6cb8: javax.servlet.ServletException 2011-11-04 10:55:04,700 WARN mortbay.log (Slf4jLog.java:warn(89)) - Error starting handlers javax.servlet.ServletException at org.apache.hadoop.http.TestGlobalFilter$RecordingFilter.init(TestGlobalFilter.java:51) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518) 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:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.apache.hadoop.http.HttpServer.start(HttpServer.java:686) at org.apache.hadoop.http.TestGlobalFilter.testServletFilter(TestGlobalFilter.java:108) ........... .......... 2011-11-04 10:55:04,731 INFO mortbay.log (Slf4jLog.java:info(67)) - Started SelectChannelConnector@0.0.0.0:3356 2011-11-04 10:55:04,731 WARN http.HttpServer (TestGlobalFilter.java:access(82)) - access http://localhost:3356/fsck 2011-11-04 10:55:04,856 WARN http.HttpServer (TestGlobalFilter.java:access(96)) - urlstring=http://localhost:3356/fsck java.io.IOException: Server returned HTTP response code: 503 for URL: http://localhost:3356/fsck at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1241) at org.apache.hadoop.http.TestGlobalFilter.access(TestGlobalFilter.java:89) at org.apache.hadoop.http.TestGlobalFilter.testServletFilter(TestGlobalFilter.java:128) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) ----------------------------------------------------------------------------------- ------------------------------------------------------------------------------------ See the javadoc for ServeletHandler#initialize http://jetty.codehaus.org/jetty/jetty-6/apidocs/org/mortbay/jetty/servlet/ServletHandler.html#initialize() initialize public void initialize() throws ExceptionInitialize filters and load-on-startup servlets. Called automatically from start if autoInitializeServlet is true. Throws: Exception *From your above comment,* Whatever filters available in config with *hadoop.http.filter.initializers* it is adding the Filters and mappings. {code} final FilterInitializer[] initializers = getFilterInitializers(conf); if (initializers != null) { for(FilterInitializer c : initializers) { c.initFilter(this, conf); } }{code} So, while starting the contexts they are getting initialized. I am not sure we added all the filters by default. is there any other way to add lazily? Regarding to other proposal: {quote} How about pinging itself once the http server has started? {quote} Even if we assume all filters will not initialize at startup, I feel this may not help because we need to send the requests for all the urls which are mapping to Fileters to ensure all filters initialized properly. Creating connections with all the urls may not be the correct choice. and I think Connecting with all the urls wil be equals to setting servletHandlers.setAutoInitializeServlets(true); explicitely. From Spec: https://jira.sakaiproject.org/secure/attachment/16135/servlet-2_4-fr-spec.pdf SRV.6.2.1 Filter Lifecycle After deployment of the Web application, and before a request causes the container to access a Web resource, the container must locate the list of filters that must be applied to the Web resource as described below. The container must ensure that it has instantiated a filter of the appropriate class for each filter in the list, and called its init(FilterConfig config) method. The filter may throw an exception to indicate that it cannot function properly. If the exception is of type UnavailableException, the container may examine the isPermanent attribute of the exception and may choose to retry the filter at some later time. Only one instance per <filter> declaration in the deployment descriptor is instantiated per Java Virtual Machine (JVMTM) of the container. The container provides the filter config as declared in the filter’s deployment descriptor, the reference to the ServletContext for the Web application, and the set of initialization parameters. Thanks Uma > When a servlet filter throws an exception in init(..), the Jetty server > failed silently. > ----------------------------------------------------------------------------------------- > > Key: HADOOP-7688 > URL: https://issues.apache.org/jira/browse/HADOOP-7688 > Project: Hadoop Common > Issue Type: Improvement > Affects Versions: 0.23.0, 0.24.0 > Reporter: Tsz Wo (Nicholas), SZE > Assignee: Uma Maheswara Rao G > Attachments: filter-init-exception-test.patch, > org.apache.hadoop.http.TestServletFilter-output.txt > > > When a servlet filter throws a ServletException in init(..), the exception is > logged by Jetty but not re-throws to the caller. As a result, the Jetty > server failed silently. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira