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https://issues.apache.org/jira/browse/KNOX-722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15375391#comment-15375391
]
Larry McCay commented on KNOX-722:
----------------------------------
Okay - I have gotten farther by excluding the pac4j-core from j2e-pac4j but am
now encountering the following:
{noformat}
2016-07-13 17:20:02,140 ERROR hadoop.gateway (GatewayServlet.java:service(143))
- Gateway processing failed: javax.servlet.ServletException:
java.lang.NullPointerException
javax.servlet.ServletException: java.lang.NullPointerException
at
org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:70)
at
org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332)
at
org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232)
at
org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:139)
at
org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:91)
at
org.apache.hadoop.gateway.GatewayServlet.service(GatewayServlet.java:138)
at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at
org.apache.hadoop.gateway.trace.TraceHandler.handle(TraceHandler.java:51)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at
org.apache.hadoop.gateway.filter.CorrelationHandler.handle(CorrelationHandler.java:39)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:499)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at
org.pac4j.saml.client.SAML2ClientConfiguration.getServiceProviderMetadataPath(SAML2ClientConfiguration.java:327)
at
org.pac4j.saml.metadata.SAML2ServiceProviderMetadataResolver.<init>(SAML2ServiceProviderMetadataResolver.java:76)
at
org.pac4j.saml.client.SAML2Client.initServiceProviderMetadataResolver(SAML2Client.java:171)
at org.pac4j.saml.client.SAML2Client.internalInit(SAML2Client.java:125)
at
org.pac4j.core.util.InitializableWebObject.init(InitializableWebObject.java:39)
at
org.pac4j.core.client.IndirectClient.getRedirectAction(IndirectClient.java:123)
at org.pac4j.core.client.IndirectClient.redirect(IndirectClient.java:85)
at
org.pac4j.j2e.filter.RequiresAuthenticationFilter.redirectToIdentityProvider(RequiresAuthenticationFilter.java:187)
at
org.pac4j.j2e.filter.RequiresAuthenticationFilter.internalFilter(RequiresAuthenticationFilter.java:151)
at
org.pac4j.j2e.filter.AbstractConfigFilter.doFilter(AbstractConfigFilter.java:80)
at
org.apache.hadoop.gateway.pac4j.filter.Pac4jDispatcherFilter.doFilter(Pac4jDispatcherFilter.java:209)
at
org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332)
at
org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232)
at
org.apache.hadoop.gateway.filter.XForwardedHeaderFilter.doFilter(XForwardedHeaderFilter.java:30)
at
org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:61)
... 29 more
{noformat}
I will dig into this issue now.
> Null Pointer Exception while accessing Services via Knox SSO configured for
> OKTA
> --------------------------------------------------------------------------------
>
> Key: KNOX-722
> URL: https://issues.apache.org/jira/browse/KNOX-722
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Affects Versions: 0.9.0
> Environment: All
> Reporter: Krishna Pandey
> Assignee: Larry McCay
> Priority: Critical
> Labels: features
> Fix For: 0.9.1
>
> Attachments: Screen Shot 2016-07-13 at 12.12.00 AM.png
>
>
> When trying to access services e.g. Ranger using Knox Single Sign-On
> configured for Okta, we are getting HTTP 500 Error. Error is caused due to
> Null Pointer Exception which can be seen in gateway.log, relevant log below:
> {noformat}
> 2016-07-12 21:24:11,131 ERROR hadoop.gateway
> (AbstractGatewayFilter.java:doFilter(69)) - Failed to execute filter:
> java.lang.NullPointerException
> 2016-07-12 21:24:11,132 ERROR hadoop.gateway
> (GatewayFilter.java:doFilter(145)) - Gateway processing failed:
> javax.servlet.ServletException: java.lang.NullPointerException
> javax.servlet.ServletException: java.lang.NullPointerException
> at
> org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:70)
> at
> org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332)
> at
> org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232)
> at
> org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:139)
> at
> org.apache.hadoop.gateway.GatewayFilter.doFilter(GatewayFilter.java:91)
> at
> org.apache.hadoop.gateway.GatewayServlet.service(GatewayServlet.java:138)
> at
> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
> at
> org.apache.hadoop.gateway.trace.TraceHandler.handle(TraceHandler.java:51)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
> at
> org.apache.hadoop.gateway.filter.CorrelationHandler.handle(CorrelationHandler.java:39)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
> at org.eclipse.jetty.server.Server.handle(Server.java:499)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
> at
> org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.gateway.pac4j.filter.Pac4jDispatcherFilter.doFilter(Pac4jDispatcherFilter.java:209)
> at
> org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:332)
> at
> org.apache.hadoop.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:232)
> at
> org.apache.hadoop.gateway.filter.XForwardedHeaderFilter.doFilter(XForwardedHeaderFilter.java:30)
> {noformat}
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