我试图连接到SparkSQL thriftserver (Spark 1.6.2)通过Knox在一个集群与Kerberos安全(Hadoop发行版是HDP 2.4.2)。我们对Hive有相同的架构，它工作得很好。由于Spark使用相同的thriftserver，我认为做同样的事情会是微不足道的，但事实并非如此。
Spark thriftserver通过Knox连接时抛出的错误是:
16/10/17 15:25:39 ERROR ThriftHttpServlet: Failed to authenticate with hive/_HOST kerberos principal
16/10/17 15:25:39 ERROR ThriftHttpServlet: Error:
org.apache.hive.service.auth.HttpAuthenticationException: java.lang.reflect.UndeclaredThrowableException
at org.apache.hive.service.cli.thrift.ThriftHttpServlet.doKerberosAuth(ThriftHttpServlet.java:361)
at org.apache.hive.service.cli.thrift.ThriftHttpServlet.doPost(ThriftHttpServlet.java:136)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:755)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.spark-project.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)
at org.spark-project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)
at org.spark-project.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:229)
at org.spark-project.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
at org.spark-project.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
at org.spark-project.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.spark-project.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
at org.spark-project.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.spark-project.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.spark-project.jetty.server.Server.handle(Server.java:366)
at org.spark-project.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)
at org.spark-project.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982)
at org.spark-project.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043)
at org.spark-project.jetty.http.HttpParser.parseNext(HttpParser.java:957)
at org.spark-project.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
at org.spark-project.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.spark-project.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:667)
at org.spark-project.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.reflect.UndeclaredThrowableException
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1727)
at org.apache.hive.service.cli.thrift.ThriftHttpServlet.doKerberosAuth(ThriftHttpServlet.java:358)
... 24 more
Caused by: org.apache.hive.service.auth.HttpAuthenticationException: Authorization header received from the client is empty.
at org.apache.hive.service.cli.thrift.ThriftHttpServlet.getAuthHeader(ThriftHttpServlet.java:502)
at org.apache.hive.service.cli.thrift.ThriftHttpServlet.access$100(ThriftHttpServlet.java:68)
at org.apache.hive.service.cli.thrift.ThriftHttpServlet$HttpKerberosServerAction.run(ThriftHttpServlet.java:403)
at org.apache.hive.service.cli.thrift.ThriftHttpServlet$HttpKerberosServerAction.run(ThriftHttpServlet.java:366)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1709)
... 25 more
有谁知道这个问题和如何解决它吗?
谢谢你,马可
就像在HiveServer2中一样，空客户端授权实际上可能是转移注意力。第一个HTTP请求没有报头，但它通常在服务器发出SPNEGO挑战后发送。
我实际上并没有意识到SparkSQL节俭服务器可以以与Hive相同的方式使用。你知道它是否支持可信代理吗?就像Hadoop中的许多服务一样?这允许第三方组件(如Apache Knox)通过doa查询参数断言经过身份验证的用户的名称，从而代表另一个用户进行操作。它还确保doa来自它信任的身份。在本例中，通过kerberos/SPNEGO身份验证。
如果它不支持可信代理，那么它将无法直接开箱即用。要么需要将它添加到SparkSQL节俭服务器，要么需要在Knox中为SparkSQL创建一个自定义分派提供程序。自定义调度将允许我们像SparkSQL所期望的那样传播用户身份。
希望对你有帮助。
——拉里