[jira] [Created] (OOZIE-3532) Confusing E1603 error message

["Andras Salamon (JIRA)" <ji...@apache.org>]

Andras Salamon created OOZIE-3532:
-------------------------------------

             Summary: Confusing E1603 error message
                 Key: OOZIE-3532
                 URL: https://issues.apache.org/jira/browse/OOZIE-3532
             Project: Oozie
          Issue Type: Bug
    Affects Versions: trunk
            Reporter: Andras Salamon


If we specify an invalid namenode for Oozie we get a useful error message:
{noformat}
Error message: E0901: NameNode [localhost:8020] not allowed, not in Oozie's whitelist. Allowed values are: [sala-6x-rpm-a-1.gce.cloudera.com:8020]]{noformat}

If we accidentally specify {{-DnameNode=hdfs:sala-6x-rpm-a-1.gce.cloudera.com:8020}}  instead of {{-DnameNode=hdfs://sala-6x-rpm-a-1.gce.cloudera.com:8020}} we get a very confusing error message:

{noformat}Error: E1603 : Can not create a Path from a null string{noformat}

Checking the logs also not very helpful:

{noformat}java.lang.IllegalArgumentException: Can not create a Path from a null string
        at org.apache.hadoop.fs.Path.checkPathArg(Path.java:164)
        at org.apache.hadoop.fs.Path.<init>(Path.java:180)
        at org.apache.oozie.servlet.V1JobsServlet.existsOnDFS(V1JobsServlet.java:213)
        at org.apache.oozie.servlet.V1JobsServlet.checkAndWriteApplicationXMLToHDFS(V1JobsServlet.java:162)
        at org.apache.oozie.servlet.BaseJobsServlet.doPost(BaseJobsServlet.java:111)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
        at org.apache.oozie.servlet.JsonRestServlet.service(JsonRestServlet.java:308)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1780)
        at org.apache.oozie.servlet.AuthFilter$2.doFilter(AuthFilter.java:171)
        at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:644)
        at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:592)
        at org.apache.oozie.servlet.AuthFilter.doFilter(AuthFilter.java:176)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1767)
        at org.apache.oozie.servlet.HttpResponseHeaderFilter.doFilter(HttpResponseHeaderFilter.java:68)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1767)
        at org.apache.oozie.servlet.HostnameFilter.doFilter(HostnameFilter.java:86)
        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1767)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:583)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:513)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
        at org.eclipse.jetty.server.Server.handle(Server.java:539)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333)
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
        at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
        at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
        at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
        at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
        at java.lang.Thread.run(Thread.java:748){noformat}

We should provide a better error message in this case.



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