hadoop - HDP上的HBase增量备份失败

Question

在HBase中创建了一个“测试”表以测试HDP上的增量金属备份功能。

    hbase(main):002:0> create 'test', 'cf'
    0 row(s) in 1.4690 seconds

    hbase(main):003:0> put 'test', 'row1', 'cf:a', 'value1'
    0 row(s) in 0.1480 seconds

    hbase(main):004:0> put 'test', 'row2', 'cf:b', 'value2'
    0 row(s) in 0.0070 seconds

    hbase(main):005:0> put 'test', 'row3', 'cf:c', 'value3'
    0 row(s) in 0.0120 seconds

    hbase(main):006:0> put 'test', 'row3', 'cf:c', 'value4'
    0 row(s) in 0.0070 seconds

    hbase(main):010:0> scan 'test'       
    ROW                   COLUMN+CELL                                               
    row1                 column=cf:a, timestamp=1317945279379, value=value1        
    row2                 column=cf:b, timestamp=1317945285731, value=value2        
    row3                 column=cf:c, timestamp=1317945301466, value=value4        
    3 row(s) in 0.0250 seconds

现在我已经使用下面的完整备份，成功了

hbase backup create full hdfs://12.3.4.56:8020/tmp/full test -w 3

现在，我想在上面的“测试”表上测试“增量金属”备份。所以我做了什么:

put 'test', 'row123', 'cf:a', 'newValue'

现在，当我执行以下操作时，它会发疯

hbase backup create incremental hdfs://12.3.4.56:8020/tmp/full

错误:

Backup session finished. Status: FAILURE
2017-06-14 09:52:58,853 ERROR [main] util.AbstractHBaseTool: Error running command-line tool
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
        at org.apache.hadoop.hbase.backup.master.FullTableBackupProcedure.cleanupTargetDir(FullTableBackupProcedure.java:205)
        at org.apache.hadoop.hbase.backup.master.FullTableBackupProcedure.failBackup(FullTableBackupProcedure.java:279)
        at org.apache.hadoop.hbase.backup.master.IncrementalTableBackupProcedure.executeFromState(IncrementalTableBackupProcedure.java:164)
        at org.apache.hadoop.hbase.backup.master.IncrementalTableBackupProcedure.executeFromState(IncrementalTableBackupProcedure.java:54)
        at org.apache.hadoop.hbase.procedure2.StateMachineProcedure.execute(StateMachineProcedure.java:107)
        at org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:443)
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:934)
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execLoop(ProcedureExecutor.java:736)
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execLoop(ProcedureExecutor.java:689)
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$200(ProcedureExecutor.java:73)
        at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$1.run(ProcedureExecutor.java:416)

更新:

在此下面的链接中，提到“备份和还原应以hbase super 用户(默认情况下称为“hbase”)运行。这是什么意思？我只是从具有root用户访问权限的简单用户运行上述back命令。请提出建议。

https://hortonworks.com/blog/coming-hdp-2-5-incremental-backup-restore-apache-hbase-apache-phoenix/

我试图更改hdfs文件的许可权(tmp / full)，但没有用。

Answer 1

我正在使用Kerberos，因此在将kinit用作运行hbase的主体后，增量备份已为我工作。

如果您不使用Kerberos，请首先切换到HBase用户(例如'su-hbase')。