[HADOOP-13215] INTERNAL_SERVER_ERROR due to NPE from PseudoAuthenticationHandler

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.7.2, 3.0.0-alpha1
• Assignee: Kai
• Reporter: Kai
• Created: 30/May/16 02:59
• Updated: 30/May/16 03:06
• Resolved: 30/May/16 03:06

Description

After upgrading httpc* in HADOOP-12767, ServletRequest can pass null value with getQueryString.
When PseudoAuthenticationHandler is used, NPE has been occurred.
We have encountered this exception in backporting to Hadoop 2.7.x, but it looks like it can occur later version Hadoops.

HTTP ERROR 500

Problem accessing /cluster. Reason:

    INTERNAL_SERVER_ERROR
Caused by:

java.lang.NullPointerException
    at org.apache.http.client.utils.URLEncodedUtils.parse(URLEncodedUtils.java:235)
    at org.apache.hadoop.security.authentication.server.PseudoAuthenticationHandler.getUserName(PseudoAuthenticationHandler.java:145)
    at org.apache.hadoop.security.authentication.server.PseudoAuthenticationHandler.authenticate(PseudoAuthenticationHandler.java:181)
    at org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationHandler.authenticate(DelegationTokenAuthenticationHandler.java:348)
    at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:519)
    at org.apache.hadoop.yarn.server.security.http.RMAuthenticationFilter.doFilter(RMAuthenticationFilter.java:82)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.apache.hadoop.http.HttpServer2$QuotingInputFilter.doFilter(HttpServer2.java:1243)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
    at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
    at org.mortbay.jetty.Server.handle(Server.java:326)
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Issue Links

• relates to: HADOOP-12767 update apache httpclient version to 4.5.2; httpcore to 4.4.4