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https://issues.apache.org/jira/browse/HBASE-20869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai updated HBASE-20869:
-----------------------------------
Fix Version/s: 2.2.0
> Endpoint-based Export use incorrect user to write to destination
> ----------------------------------------------------------------
>
> Key: HBASE-20869
> URL: https://issues.apache.org/jira/browse/HBASE-20869
> Project: HBase
> Issue Type: Bug
> Components: Coprocessors
> Affects Versions: 2.0.0
> Environment: Hadoop 3.0.0 + HBase 2.0.0, Kerberos.
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Fix For: 3.0.0, 2.0.2, 2.2.0, 2.1.1
>
> Attachments: HBASE-20869.master.001.patch,
> HBASE-20869.master.002.patch
>
>
> HBASE-15806 implemented an endpoint based export. It gets caller's HDFS
> delegation token, and RegionServer is supposed to write out exported files as
> the caller.
> Everything works fine if you use run export as hbase user. However, once you
> use a different user to export, it fails.
> To reproduce,
> Add to configuration key hbase.coprocessor.region.classes the coprocessor
> class org.apache.hadoop.hbase.coprocessor.Export.
> create a table t1, assign permission to a user foo:
>
> {noformat}
> hbase(main):004:0> user_permission 't1'
> User Namespace,Table,Family,Qualifier:Permission
> hbase default,t1,,: [Permission: actions=READ,WRITE,EXEC,CREATE,ADMIN]
> foo default,t1,,: [Permission: actions=READ,WRITE,EXEC,CREATE,ADMIN]{noformat}
>
> As user foo, execute the following command:
>
> {noformat}
> $ hdfs dfs -mkdir /tmp/export_hbase2
> $ hbase org.apache.hadoop.hbase.coprocessor.Export t1 /tmp/export_hbase2/t2/
> ....
> 18/07/10 14:03:59 INFO client.RpcRetryingCallerImpl: Call exception, tries=6,
> retries=6, started=4457 ms ago, cancelled=false,
> msg=org.apache.hadoop.security.AccessControlException: Permission denied:
> user=hbase, access=WRITE,
> inode="/tmp/export_hbase2/t2":foo:supergroup:drwxr-xr-x
> at
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:400)
> at
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:256)
> at
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:194)
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1846)
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1830)
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkAncestorAccess(FSDirectory.java:1789)
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirWriteFileOp.resolvePathForStartFile(FSDirWriteFileOp.java:316)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:2411)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:2343)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:764)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:451)
> 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$RpcCall.run(Server.java:869)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:815)
> 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:1685)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2675)
> at sun.reflect.GeneratedConstructorAccessor25.newInstance(Unknown Source)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at
> org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:121)
> at
> org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:88)
> at
> org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:278)
> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1195)
> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1174)
> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1112)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$8.doCall(DistributedFileSystem.java:462)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$8.doCall(DistributedFileSystem.java:459)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:473)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:400)
> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1103)
> at org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:1168)
> at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:285)
> at
> org.apache.hadoop.hbase.coprocessor.Export$SecureWriter.<init>(Export.java:445)
> at org.apache.hadoop.hbase.coprocessor.Export.processData(Export.java:214)
> at org.apache.hadoop.hbase.coprocessor.Export.export(Export.java:338)
> at
> org.apache.hadoop.hbase.protobuf.generated.ExportProtos$ExportService.callMethod(ExportProtos.java:2030)
> at org.apache.hadoop.hbase.regionserver.HRegion.execService(HRegion.java:8007)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.execServiceOnRegion(RSRpcServices.java:2409)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.execService(RSRpcServices.java:2391)
> at
> org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:42010)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:409)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304){noformat}
> This is not a problem in unit test, because HBase runs as the same user as
> HDFS superuser, so it always has the permission to write.
> I have a fix and a test code. [~chia7712] could you help review?
> The doc could use some help too. Not very easy to follow for first time user.
> I'll file a doc Jira for that.
>
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