hadoop - Spark-SQL 在 yarn-cluster 上的错误 hdfs 权限

Question

我有一个简单的工作，就是通过 spark sql 在 hdfs 中读取 hive。我首先在 yarn-client 模式下运行它，我没有遇到任何问题。几次之后，我开始通过 yarn-cluster 模式启动它，但我遇到了这个问题:

我有这个 hdfs 权限错误:

Caused by:MetaException(message:org.apache.hadoop.security.AccessControlException: Permission denied: user=yarn, access=EXECUTE, inode="/Projects/SNB/directory/Private/table/table_ORC":hdfs:mygroup:drwxr-xr--
    at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:319)
    at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkTraverse(FSPermissionChecker.java:259)
    at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:205)
    at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:190)
    at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1698)
    at org.apache.hadoop.hdfs.server.namenode.FSDirStatAndListingOp.getFileInfo(FSDirStatAndListingOp.java:108)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getFileInfo(FSNamesystem.java:3857)
    at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getFileInfo(NameNodeRpcServer.java:1006)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getFileInfo(ClientNamenodeProtocolServerSideTranslatorPB.java:843)
    at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
    at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)
    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)
    at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:422)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
    at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043)
)
    at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$get_table_result$get_table_resultStandardScheme.read(ThriftHiveMetastore.java:29329)
    at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$get_table_result$get_table_resultStandardScheme.read(ThriftHiveMetastore.java:29306)
    at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$get_table_result.read(ThriftHiveMetastore.java:29237)
    at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)
    at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.recv_get_table(ThriftHiveMetastore.java:1036)
    at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.get_table(ThriftHiveMetastore.java:1022)
    at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.getTable(HiveMetaStoreClient.java:997)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.invoke(RetryingMetaStoreClient.java:89)
    at com.sun.proxy.$Proxy31.getTable(Unknown Source)
    at org.apache.hadoop.hive.ql.metadata.Hive.getTable(Hive.java:976)
    ... 68 more`

但是，当我在这个目录上执行 hdfs dfs -ls 时，它会显示:

drwxrwxrwx -lb23598 mygroups 0 2016-12-20 17:58 /Projects/SNB/directory/Private/table/table_ORC

因此在 yarn 获取的内容与 hdfs 中设置的当前权限之间存在不同步现象。

你有什么想法吗？

非常感谢!

Answer 1

尝试在提交作业之前创建如下所示的环境变量

export HADOOP_USER_NAME=<NAME_OF_THE_USER_THAT_HAS_HDFS_PERMISSION>