[jira] [Created] (HIVE-20344) PrivilegeSynchronizer for SBA might hit AccessControlException

["Daniel Dai (JIRA)" <ji...@apache.org>]

Daniel Dai created HIVE-20344:
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             Summary: PrivilegeSynchronizer for SBA might hit AccessControlException
                 Key: HIVE-20344
                 URL: https://issues.apache.org/jira/browse/HIVE-20344
             Project: Hive
          Issue Type: Improvement
            Reporter: Daniel Dai
            Assignee: Daniel Dai


If "hive" user does not have privilege of corresponding hdfs folders, PrivilegeSynchronizer won't be able to get metadata of the table because SBA is preventing it. Here is a sample stack:
{code}
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.security.AccessControlException: Permission denied: user=hive, access=EXECUTE, inode="/tmp/sba_is/sba_db":hrt_7:hrt_qa:dr--------
        at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:399)
        at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkTraverse(FSPermissionChecker.java:315)
        at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:242)
        at org.apache.ranger.authorization.hadoop.RangerHdfsAuthorizer$RangerAccessControlEnforcer.checkDefaultEnforcer(RangerHdfsAuthorizer.java:512)
        at org.apache.ranger.authorization.hadoop.RangerHdfsAuthorizer$RangerAccessControlEnforcer.checkPermission(RangerHdfsAuthorizer.java:305)
        at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:193)
        at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1850)
        at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1834)
        at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPathAccess(FSDirectory.java:1784)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkAccess(FSNamesystem.java:7767)
        at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.checkAccess(NameNodeRpcServer.java:2217)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.checkAccess(ClientNamenodeProtocolServerSideTranslatorPB.java:1659)
        at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
        at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:872)
        at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:818)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2678)

        at org.apache.hadoop.hive.ql.security.authorization.StorageBasedAuthorizationProvider.checkPermissions(StorageBasedAuthorizationProvider.java:424)
        at org.apache.hadoop.hive.ql.security.authorization.StorageBasedAuthorizationProvider.checkPermissions(StorageBasedAuthorizationProvider.java:382)
        at org.apache.hadoop.hive.ql.security.authorization.StorageBasedAuthorizationProvider.authorize(StorageBasedAuthorizationProvider.java:355)
        at org.apache.hadoop.hive.ql.security.authorization.StorageBasedAuthorizationProvider.authorize(StorageBasedAuthorizationProvider.java:203)
        at org.apache.hadoop.hive.ql.security.authorization.AuthorizationPreEventListener.authorizeReadTable(AuthorizationPreEventListener.java:192)
        ... 23 more
{code}
I simply skip the table if that happens. In practice, managed tables are owned by "hive" user, so only external tables will be impacted. User need to grant execute permission of db folder and read permission of the table folders to "hive" user if they want to query the information schema for the tables, whose permission is only granted via SBA. 



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