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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18975) B&R hadoop3 incompatibility
Date Mon, 09 Oct 2017 22:12:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16197768#comment-16197768
] 

Ted Yu commented on HBASE-18975:
--------------------------------

Running against hadoop-3 beta1 with patch, I got:
{code}
2017-10-09 15:07:58,813 ERROR [main] tools.DistCp(167): Exception encountered
java.lang.reflect.InvocationTargetException
  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:498)
  at org.apache.hadoop.hbase.backup.mapreduce.MapReduceBackupCopyJob$BackupDistCp.execute(MapReduceBackupCopyJob.java:234)
...
Caused by: java.lang.NullPointerException
  at org.apache.hadoop.tools.DistCp.cleanup(DistCp.java:458)
  ... 45 more
2017-10-09 15:07:58,813 ERROR [main] impl.IncrementalTableBackupClient(288): Copy incremental
HFile files failed with return code: -999.
2017-10-09 15:07:58,814 ERROR [main] impl.TableBackupClient(235): Unexpected exception in
incremental-backup: incremental copy backup_1507586784698Failed copy from hdfs://       localhost:52653/backupUT/.tmp/backup_1507586784698
to hdfs://localhost:52653/backupUT/backup_1507586784698/WALs
java.io.IOException: Failed copy from hdfs://localhost:52653/backupUT/.tmp/backup_1507586784698
to hdfs://localhost:52653/backupUT/backup_1507586784698/WALs
  at org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.incrementalCopyHFiles(IncrementalTableBackupClient.java:290)
  at org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.execute(IncrementalTableBackupClient.java:233)
  at org.apache.hadoop.hbase.backup.impl.BackupAdminImpl.backupTables(BackupAdminImpl.java:601)
  at org.apache.hadoop.hbase.backup.TestIncrementalBackup.TestIncBackupRestore(TestIncrementalBackup.java:142)
{code}

> B&R hadoop3 incompatibility
> ---------------------------
>
>                 Key: HBASE-18975
>                 URL: https://issues.apache.org/jira/browse/HBASE-18975
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>            Priority: Blocker
>         Attachments: HBASE-18975-v1.patch
>
>
> Due to changes in hadoop 3, reflection in BackupDistCp is broken
> {code}
> java.lang.NoSuchFieldException: inputOptions
>   at java.lang.Class.getDeclaredField(Class.java:2070)
>   at org.apache.hadoop.hbase.backup.mapreduce.MapReduceBackupCopyJob$BackupDistCp.execute(MapReduceBackupCopyJob.java:168)
> {code}  



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