[ 
https://issues.apache.org/jira/browse/HIVE-10021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Aihua Xu reassigned HIVE-10021:
-------------------------------

    Assignee: Aihua Xu

> "Alter index rebuild" statements submitted through HiveServer2 fail when 
> Sentry is enabled
> ------------------------------------------------------------------------------------------
>
>                 Key: HIVE-10021
>                 URL: https://issues.apache.org/jira/browse/HIVE-10021
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2, Indexing
>    Affects Versions: 0.13.1, 2.0.0
>         Environment: CDH 5.3.2
>            Reporter: Richard Williams
>            Assignee: Aihua Xu
>         Attachments: HIVE-10021.patch
>
>
> When HiveServer2 is configured to authorize submitted queries and statements 
> through Sentry, any attempt to issue an "alter index rebuild" statement fails 
> with a SemanticException caused by a NullPointerException. This occurs 
> regardless of whether the index is a compact or bitmap index. 
> The root cause of the problem appears to be the fact that the static 
> createRootTask function in org.apache.hadoop.hive.ql.optimizer.IndexUtils 
> creates a new 
> org.apache.hadoop.hive.ql.Driver object to compile the index builder query, 
> and this new Driver object, unlike the one used by HiveServer2 to compile the 
> submitted statement, is used without having its "userName" field initialized 
> with the submitting user's username. Adding null checks to the Sentry code is 
> insufficient to solve this problem, because Sentry needs the userName to 
> determine whether or not the submitting user should be able to execute the 
> index rebuild statement.
> Example stack trace from the HiveServer2 logs:
> {noformat}
> FAILED: NullPointerException null
> java.lang.NullPointerException
>       at 
> java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:333)
>       at 
> java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:988)
>       at org.apache.hadoop.security.Groups.getGroups(Groups.java:161)
>       at 
> org.apache.sentry.provider.common.HadoopGroupMappingService.getGroups(HadoopGroupMappingService.java:46)
>       at 
> org.apache.sentry.binding.hive.authz.HiveAuthzBinding.getGroups(HiveAuthzBinding.java:370)
>       at 
> org.apache.sentry.binding.hive.HiveAuthzBindingHook.postAnalyze(HiveAuthzBindingHook.java:314)
>       at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:440)
>       at 
> org.apache.hadoop.hive.ql.optimizer.IndexUtils.createRootTask(IndexUtils.java:258)
>       at 
> org.apache.hadoop.hive.ql.index.compact.CompactIndexHandler.getIndexBuilderMapRedTask(CompactIndexHandler.java:149)
>       at 
> org.apache.hadoop.hive.ql.index.TableBasedIndexHandler.generateIndexBuildTaskList(TableBasedIndexHandler.java:67)
>       at 
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.getIndexBuilderMapRed(DDLSemanticAnalyzer.java:1171)
>       at 
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.analyzeAlterIndexRebuild(DDLSemanticAnalyzer.java:1117)
>       at 
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.analyzeInternal(DDLSemanticAnalyzer.java:410)
>       at 
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:204)
>       at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:437)
>       at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:335)
>       at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1026)
>       at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1019)
>       at 
> org.apache.hive.service.cli.operation.SQLOperation.prepare(SQLOperation.java:100)
>       at 
> org.apache.hive.service.cli.operation.SQLOperation.run(SQLOperation.java:173)
>       at 
> org.apache.hive.service.cli.session.HiveSessionImpl.runOperationWithLogCapture(HiveSessionImpl.java:715)
>       at 
> org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementInternal(HiveSessionImpl.java:370)
>       at 
> org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementAsync(HiveSessionImpl.java:357)
>       at 
> org.apache.hive.service.cli.CLIService.executeStatementAsync(CLIService.java:238)
>       at 
> org.apache.hive.service.cli.thrift.ThriftCLIService.ExecuteStatement(ThriftCLIService.java:393)
>       at 
> org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement.getResult(TCLIService.java:1373)
>       at 
> org.apache.hive.service.cli.thrift.TCLIService$Processor$ExecuteStatement.getResult(TCLIService.java:1358)
>       at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
>       at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
>       at org.apache.thrift.server.TServlet.doPost(TServlet.java:83)
>       at 
> org.apache.hive.service.cli.thrift.ThriftHttpServlet.doPost(ThriftHttpServlet.java:99)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>       at 
> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
>       at 
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
>       at 
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
>       at 
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
>       at 
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
>       at 
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
>       at 
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
>       at 
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>       at 
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
>       at org.eclipse.jetty.server.Server.handle(Server.java:345)
>       at 
> org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:449)
>       at 
> org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:925)
>       at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:857)
>       at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
>       at 
> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:76)
>       at 
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:609)
>       at 
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45)
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>       at java.lang.Thread.run(Thread.java:745)
> {noformat}



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